Alcatel 44004400-PCX

 

 

 

 

 

 

 

 

 

 

I.                  Network Services


A.    Q-SIG

 

Q-SIG provides the best modern design for connecting different PBXs. It is an open, international standard and the world's leading PBX suppliers supports it.

Q-SIG protocol is based on ISDN and ensures service compatibility between the public and private ISDN. and the private ISDN.

Q-SIG can work in all kinds of topologies, with no limitation on the number of nodes and no restrictions on the numbering plan.

 

The Alcatel 44004400-PCX offers a new type of private network interface implementing the Q-SIG--BC (QSIG Basic Call). Q-SIG BC (ETS 300 172) is the part of the protocol which describes the basic call and extends the public ISDN access protocol for use in private Basic Rate Access and Primary Rate Access. As

Alcatel one of the Q-SIG forum founders, Alcatel supports this standard, and commits itself to implementing on a regular basis the evolution of the norm on a regular basis when standardizedstandardised by the OSI committee.

 

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B.1.       Q-SIG numbering planQ-SIG - BC

 

The following numbering plans are supported:

 

      Heterogeneous numbering plan

      Closed numbering plan

      Open numbering plan (up to 20 digits)

2.       Q-SIG-BC services

 

 


1.Q-SIG - BC services

 

The level of services of Q-SIG - BC (basic call) is the same as on traditional tie-lines with the main following advantages:

 

      number of Ccallering party and the connected party number identification

      Voice or data communicationdata calls

2.3.       Accounting

 

For anEa ch outgoing call on the Q-SIG trunk generates from Alcatel 4400 on Q-SIG - BC, a metering ticket is generated on the Q-SIG trunk of the Alcatel 4400 with the duration of the call.

3.4.       Interaction between the different systems

 

An In general, each node in a non-Alcatel network has its own incoming public trunk lines and attendants, i.e. call distribution is local to the node. Each node also has its own public outgoing trunk lines.

 

Nevertheless, using the proprietary features of the Alcatel 4400, and depending on the capabilities of third party PBX, enhancement of services is possible.

 

Alcatel 44004400-PCX subscriber can make a public call vthat will take ia a public trunk line located onin another PBX through the QSIG-BC interface. In that case, external call barring is performed in the Alcatel 44004400-PCX. In addition, for all incoming Q-SIG -BC i

 

For an incomingncoming call, if the Party Category is sent by the connected PBX, in the Alcatel 4400 from the Q-SIG -BC interface, if the Party Category is received the Alcatel 44004400-PCX is able to differentiate calls originating from private subscribers and public trunks, and s:react as followsing:

 

      callsCalls originating ed from private networks are treated as internal calls ion waiting queues on attendants.

      storageStorage of public calls public originated calls in the non answerednon-answered call repertory.

      forFor calls coming from the public network through Q-SIG - BC, overflow on no answer or busy subscriber can be processed either in the Alcatel 44004400-PCX or in the transit network, depending on the management.

 


5.       QSIG-GF/SS

 

GF

C.QSIG - GF

 

(General Feature) and SS (ssupplementary services) are the services The enhancements of the BC Basic Call has been called GF of QSIG-BC. General Feature and the SS supplementary services . This additional module allows to increase the service level in heterogeneous environment . Additional services have been defined as part of the new standard. Those standards, as soon quick as they are availableappear, are implemented on a regular basis in the Alcatel 44004400-PCX proprietary network protocol.

 

The other QSIG-GF benefit in addition to the standardization is the transparency. The private network protocol ABC-F is based on QISG-BC and QSIG-GF, then for 4400s in relation through a QSIG-BC-CF based network, the telephone service available is ABC-F.


The QSIG-GF provides name identification plus feature transparency mechanism. QSIG-SS, provides telephone services such as:

SS interface although less attractive than a ABC-F interface provides the following services in network :

 

      Calling Line Identification Presentation

      Connected Line Identification Presentation

      Calling/Connected Line Identification Restriction

      Calling Name Identification Presentation

      Connected Name Identification Presentation

      Calling/Connected Name Identification Restriction

      Generic Functional Procedures

      Call Forwarding - Unconditional

      Call Forwarding - Busy

      Call Forwarding on No Reply

      Call Transfer

      Path Replacement

      Call Completion to Busy Subscriber

      Call Completion on No Reply

      Call Offer

      Advice oOf Charge


B.     Homogeneous networking

 

 


D.4400 homogeneous network services

The Alcatel 44004400-PCX systems can be easily networked, to reach very high capacitiesy of , up to 50 000 extensions, in various geographic topologiesy of 100 nodes. The services between the Alcatel 44004400-PCXs use a powerful proprietary protocol : The Alcatel Business Communication or ABC protocol. This architecture of this protocol is based on five modules :

 

      ABC-F homogeneous: supporting the telephone features

      ABC-F heterogeneous Alcatel: supporting a sub-set of telephone features

      ABC-M: supporting the management mechanisms

      ABC-R: supporting the routing algorithms

      ABC-A: supporting the network applications

 

 

In addition, this architecture is based on the standard protocol QSIG-BC, and GF. This has the for advantage tof facilitateing the integration of the 44004400-PCX integration in heterogeneous environments, and to providing e an ABC-F service level between 44004400-PCX saan ABC-F service level.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

1.Topologies

a.1.       homogeneous networks

a.      Topologies

 

The network can be configured in various topologies : Line, Star, full meshed, or a mixture of them.. The connections are made via Digital leased lines E1, fractional E1, Frame relay X24/V11, ATM 155 MBPS, IP 10 BT, and analogue BRA, BPRA or tie-linestie-lines interfaces.

 

 

 

 

 

 

 

 

 

 

 

 

 



b.      Ccorporate network

 

The number of nodes supported is 100, the "homogeneous configuration" can reach 32 nodes, and the remaining nodes are satellites of these main nodes. Whatever the topology,ies the service level is the same throughout the network. Many homogeneous 44004400-PCX private networks or sub-networks can be federated in an extended configuration called "Corporatecorporate network". Each sub-network, retains its own external connections, attendants, centralizedcentralised applications, and management, but ABC-F and ARS/LCR telephone services ABC-F and ARS/LCR remain coherent throughout the whole corporate network. The advantage of t. And they form a consistent whole as regards telephone services for users and cost optimization arrangements.

This configuration is that ahas for advantages to federate a large company spread over national or international territories can be federated through an efficient voice communication network, whilst maintaining local reactivity.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


c.      Remote crystal

 

This is a 4400 remote shelf connected to the main Crystal. The remote Crystal is the solution for a distributed architecture on a large campus, to profit from existing structured cabling and to use on the primary fibre optic cabling fibre optic. It is also a cost optimised solution for company branches, which with needs of the utmost homogeneity. And fFinally, this remote shelf could be a controller for DECT radio base stations in order to cover a large area. The connectivity is as the followings:

 

      Remote Crystal based on fibberre optic (INTOF board):

  Multi-mode or mono-mode fibre optic

  4x8 Mbits connection between remote shelf and main crystal

      Remote Crystal based on copper cabling (INTOF board):

  DECT hand-over and roaming between crystals

  4x8 Mbit/s connection between remote shelf and main crystal

      Remote Crystal over public leased line (RT2 board)

  E1 or fractional E1 connection between remote shelf and main crystal

d.      Remote Crystal on 64 KBPS leased line 64 KBPS with compression

 

It is possible to connect branch offices with a high security level to the corporate network with a remote Crystal shelfve Crystal via a 64 KBPS leased line. Thanks to the integrated compression engine integrated in the LIO B board, LIO B the leased line supports up to 6 voice communications, and in case of link failure, communications are backed up over ISDN, with up to 6 communications in one B channel whilst retaining the same level of telephone services.


2.       Packet voice network

 

TraditionalThe classical network solutions are based on digital leased lines, typically E1 or fractional E1. However,But as a result of the evolution of technology evolution, we now have real opportunities to build up flexible and cost effective innovative networking solutions.

a.      Integrated compression engine

 

The traditional transport of voice over digital circuits useds to require 64Kbs per second. Thatese istimes are now over thanks to the new Alcatel 4400-PCX advanced compression engine, which allows up to 6 simultaneous communications into the traditional 64 KBPS channel. In configurations based on digital leased lines, the quality is constant, voice is compressed/decompressed once (end to end) whatever the topologies (transit nodes). In configurations based on digital and analogue leased lines, only two compression/decompression operations are authorised, and controlled by the network protocol in order to guarantee voice quality. The characteristics asre the followings:

 

      8 compression modules are integrated in the following boards:

  LIO P2, (PRA access)

  LIO B2, (4 BRA access, plus one X24/V11or V36 access)

  LIO X2, (auxiliary)

      Compression algorithms: G723.1, G 729A

      Compression rate: 6.4 KBPS, 8 KBPS

      Allocation of the compression algorithm:

  Static

  Per bundles between A 4400-PCX

      Integrated echo cancellation

      Fax G3 up to 9600 BPS

      MF Q23 codes interpreted, coded and regenerated

      Lost frames interpolation

      Silence suppression and regeneration

      End to end compression/decompression

      Voice frame fragmentation (reducing delay)

      Mutual help between compression resources

b.      Voice over IP network

 

The implementation of Voice over IP services on the Alcatel 4400 provides a new cost/quality ratio together with a high level of voice services. level. Voice over IP implementation provides the full ABC networking feature transparency thanks to the multiplexing of voice and signalling on OmniPCX 4400 links. Integrated voice over IP provides the following services:

 

      LIO E Board e LIO E insuring voice compression and IP packets IP encapsulation

      Ethernet 10 BT

      30 compressed voice channels per board (base 12)

      50 boards maximum per system

      Packet algorithm: G 711

      Compression algorithms: G723.1, G 729A

      Compression rate: 6.4 KBPS, 8 KBPS

      Allocation of the compression algorithm:

  Per bundles between OmniPCX 4400

  Call by call with H 323 device

      MF Q23 codes coded and regenerated

      Silence suppression and regeneration

      Lost frame interpolation

      Echo cancellation


 

      Fax modulation/demodulation at 9.6 KBPS (fax relay T 38)

      Automatic fax detection

      Dynamic jitters buffer per direction

      Inter node transit

      Multiple VoIP bundles

 

The voice over IP service is compliant with the video conferencing over H 323 packet network H 323. The Iintegrated VoIP is a "VoIP gateway" in the H 323 terminology, and can inter- operate with other equipment as far the standard implementation is similar. The cCompliance with the H 323 standard enables communication between telephone sets and PCs with having audio capabilityies and a H 323 client H 323 such as Microsoft NetMeeting, or Netscape communicator (conference). When a telephone user calls a PC by dialling its directory number, the Alcatel 4400-PCX translates the PC telephone number (E 164) into its IP address. If a gatekeeper already exists in the network, the Alcatel OmniPCX 4400 can become a gatekeeper client (Client RAS protocol) and, for each call, can then request the PCs IP address fromto the gatekeeper for each call the PC IP address. For calls from a PC to a telephone set or a trunk, the PC has only has to send the LIO E IP address followed by the telephone directory number. The telephone service level between the PC and PC/telephone set is limited to basic calls due to the currentH 323 limitations of the H 323 standard limitations.

c.      VoIP quality of service

 

The Alcatel 4400-PCX natively integrates mechanisms to helping non- deterministic IP networks to provide "Voice grade" quality:

 

      Tagging voice packets according to 802.1p and TOS standards 802.1p and TOS enabling switches and routers to identify voice packets

      IP traffic limitation

      Communication overflow to another communication network in case of IP network saturation

d.      IP voice channels limitation

 

It is possible to define the number of voice channels supported by an "IP TRUNK"., wWhen the IP-TRUNK is totally busy, the communications can overflow via another network according to user rights.

e.      Simultaneous IP call limitation

 

In an IP-TRUNK, Iit is possible to define in an IP-TRUNK, the number of communications possible according to a direction, in fact to define a virtual "IP-bundle". When the IP-bundle is totally busy, the communications can overflow via another network according to user rights.

f.        Back-up of IP calls

 

The Alcatel 4400-PCX LIO E board provides an "IP quality monitoring" service; allowing, when quality goes beyond a given threshold,, calls can be automatically calls re-routinged toward public ISDN for example. On IP it is possible to continually monitor permanently performance parameters such as packets loss rate, jitter and delay thanks to the RTCP protocol RTCP. According to a given direction, when the quality reaches a threshold composed of a mix of delay, packet loss and jitter, new calls are routed toward a public ISDN or digital R2 network with in direct or indirect access according to user rights. When the quality increases again, new calls are routed via Tthe IP network. Several IP quality levels can be defined, corresponding to several classes of calling users. For Eexample, a user with "Higher VoIP privilege", will be routed on IP only if the quality is compliant with the indicator "Very good quality", if the otherwise in case of indicator is "medium quality", these users will be automatically routed toward ISDN. . When the IP network is out of service, new calls are routed toward ISDN without ABC services.


g.      Traffic observation

 

As the VoIP trunk group, is defined in the same way as traditional voice circuit trunk groups, the same comprehensive traffic observation services are available. Please refer to the management description for more details.

3.       Voice over FR network

 

As Frame Relay technology becomes more and more mature and able to support voice traffic in good conditions, it is particularly useful to interconnect sites with lowsmall to medium traffic. The Alcatel 4400 provides NATIVE Frame Relay networking service, allowing connection to either private or public Frame Relay switches. The service characteristics are as the followings:

 

      LIO B 2 Board LIO B 2 einsuring voice compression and packet encapsulation

      Interface X24/V11 or V36 Interface

      Interface speed 64, 128 KBPS

      8 integrated compression resources per board

      12 voice channels per board

      Two directions per board with digital leased line

      Four PVCs per board when connected to private or public FR

      6 voice channelsl max per PVC

      Compression algorithm: G723.1, G 729A

      Compression rate: 6,4 KBPS, 8 KBPS

      Integrated echo cancellation

      Fax G3 up to 9600 BPS

      MF Q23 codes interpreted, coded and regenerated

      Lost frames interpolation

      Silence suppression and regeneration

      End to end compression/decompression

      Data frame fragmentation (reducing delay)

      Mutual help between compression resources

a.      FR voice channels limitation

 

It is possible to define the number of voice channels supported by PVC. wWhen it is totally busy, the communications can overflow via another network according to user rights.

b.      Back-up of FR calls

 

When the PVC is totally busy, following communications can overflow according to user rights ontotoward a private or public ISDN or digital R2 network within direct or indirect access.

c.      Traffic observation

 

As the VoFR trunk group, is defined in the same way as traditional voice circuit trunk groups, the same comprehensive traffic observation services are available. Please refer to the management description for more details.

 


4.       Voice over ATM network

 

Today many campus communication infrastructures are migrateing toward ATM technology. It is the right way to integrate legacy data traffic with other company information flows when real time is critical. Alcatel 4400 supports native ATM connectivity providing a seamless integration of voice and ABC services over ATM networks. The service characteristics are as followsthe following:

 

      ATM Interface 155 Mbits/s (STM1/OC3)

      Multiplexing of E1 trunks in ATM cells

      4 ATM boards per 4400

      8 E1 trunks (240 channels) per board

      Compliant with integrated compression auxiliary (LIO-X)

      Segmentation and Re-assembly (SAR)

      ATM adaptation Layer 1 (AAL 1)

      Unstructured mode (CES 1.0) using Permanent Virtual Circuits (PVCs)

      Supporrts of 8 directions (PVCs) per interface

 


C.    Virtual private network (vpn)

 

Networking small sites with low or medium voice traffic does not always justify dedicated leased lines. As a result of infrastructure evolution, carriers can offer an increasing number of switched connections combined with attractive tariffs. In line with this ongoing evolution, the Alcatel 4400-PCX supports versatile virtual networking solutions offering real advantages.

1.       ABC VPN and leased lines.

 

CThe cost considerations for the private network architecture usually lead tomost often implies links bandwidth limitation. However,At the opposite, to provide a good quality of service, the private links have to be dimensioned more or less according to the maximum traffic peak. This results in has for result unused bandwidth being unused for during long time periods of time, and costly subscription. The best way to optimise bandwidth, is firstly, the reduction of leased line size according to the traffictraffic and, secondly, traffic peak overflow through an alternative network: ISDN, Q-SIG, analogue DID, or E1 R2.

 

 

 

 

 

 

 

 

 

 

 

 


a.      Service characteristics

 

Alcatel VPN configuration offers full ABC services (ABC-F-M-R-A) whatever the network is used to transport voice, the telephone signalling having always has a reserved channel in the leased line (D channel). AlsoAlways to optimise costs, we use Virtual DDI to overflow the communications when the leased line is saturated. A limited set of DDI numbers is reserved for this service (according to the traffic), so then that we can integrate subscribers with or without DDI into the network, whilst saving DDI subscription costs subscription. The network manager can manage precisely the overflow precisely, the service can be allocated user by per user and then the cost then remains under control with an good accurate quality of service. When the leased link is saturated, a friendly voice guide suggests an automatic call back request proposes to a user who is not not so entitled to an overflow an automatic call back request operation. In addition, in the 4400-PCX metering application, a flag is associated to each overflowed communication. This means that the Thanks to that, the network manager has a precise and factual indicator to analyse whether the service remains consistent over a period of time period., if the service remains consistent.

b.      Compression engine integration

 

This service can be combined with the Alcatel 4400-PCX advanced compression engine, which allows up to 8 simultaneous communications into 64 KBPS channel or 5 simultaneous communications in 56 KBPS either on the digital leased line or public ISDN, giving leading to an unrivalled cost-effective application.


2.       ABC VPN without leased line for voice

 

For some configurations with low traffic levels a dedicated E1 link cannot be justified. For such topology, the A4400-PCX provides the solution to interconnect systems with full ABC services. We use the available public ISDN or QSIG network ISDN or QSIG available to transport voice, and another network to transport signalling as:

 

      TCP-IP network

      Synchronous V24 modem (Analogue ABC)

      X25 Packet X25 in D channels (LLP) when available.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


a.      Service characteristics

 

Alcatel VPN configuration offers full ABC services (ABC-F-M-R-A), with the telephone signalling always having always a reserved channel in the leased line (D channel). Alsoways to optimise costs, we use Virtual DDI for the communications between sites. A limited set of DDI numbers is reserved for this service (according to the traffic), sothen we can integrate subscribers with or without DDI into the network, whilst saving DDI cost subscription costs. In addition, in the 4400-PCX metering application a flag is associated to each overflowed communication. This means that the network manager has a precise and factual indicator to analyse whether the service remains consistent over a period of time.

Thanks to that, the network manager has precise and factual indicator to analyse over a time period, if the service remains consistent.

b.      Compression engine integration

 

This service can be combined with the OmniPCX 4400 advanced compression engine, which allows up to 6 simultaneous communications in 64 KBPS channel or 5 simultaneous communications in 56 KBPS either on the digital leased line or public ISDN, giving an unrivalled cost-effective application.

 


3.       ABC on demand

 

This solution makes it possible to build up a powerful private voice network over ISDN, or Q-SIG public switched network without a permanent connection. This application combines integrated voice compression engine and signalling on demand services. When it is required, one B channel is set up between two nodes, this virtual leased line transports the both networks signalling and compressed voice of both networks. Up to 8 communications in the same B channel. The Virtual leased line is released when there is no more private traffic. This solution targets networks located in the same cost area, and combines great flexibility and tremendous cost savings.

 

 

 

 

 

 

 

 

 

 


To improve total cost of ownership, bandwidth demanding management operations bandwidth demanding such metering files, user modification, etc can be activated only when a voice communication occurs. It is also possible between two sites to dynamically activate dynamically one B channel per direction between two sites, in order to clearly differentiate and allocate the communication costs.

4.       Networking on analog tie-lines

 

It is possible to set-up an efficient private ABC networks providing the complete set of services (ABC-F-R-M-A) via analogue tie lines. For that an analogue leased line is dedicated to support the telephone signalling, via a couple of synchronous or asynchronous modems (from 9600b/s up to 34800b/s), the voice is supported by standard tie-lines. With an analogue ABC network we have the same benefits as with digital lines, we can overflow communications through the public ISDN network when the links are busy, or out of service. To provide this service a built-in application continuallycheck checkspermanently the availability of free tie lines by an exchange of DTMF frequencies between sites inter connected sites.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



D.    Network services

1.       Miscellaneous

a.      Attendant

 

A single operator group or several operator groups can handle all the calls of the whole network in a distributed or centralised configuration.

b.      Night service

 

The assigned night service stations can be in different nodes from the one of the operator. If there are several assigned night service stations, they can be in different nodes.

c.      Numbering plan

 

The closed numbering plan can reach eight digits it can be sliced or mixed and customised to all configurations.

d.      Moving

 

It is possible to move a subscriber toin another network node without changing the extension number.

2.       ABC-F telephone features

 

1.          Miscellaneous

a.1.Attendant

1.           

1.          A single centralized group operator or several groups of operators can handle all the calls of the whole network in a distributed configuration.

b.1.Night service

1.           

1.          The assigned night service stations can be in different nodes from the one of the operator. If there are several assigned night service stations, they can be in different nodes.

c.1.Numbering plan

1.           

1.          The numbering plan can reach eight digits, it can be open or closed, sliced or mixed and customized to all configurations.

d.1.Moving

1.          It is possible to move a subscriber in an other network node without changing the extension number.

1.           


3.1.ABC F: Telephone features

 

In a network, the Alcatel 44004400-PCX offers the following features:

 

      Basic call

      Number and name identification display of name

      Ccall by name

      Call waiting indication

      Call offer

      Call back on busy links

      Call back on free or busy extensions

      Call park

      Call deflection

      Camp on

      Individual call pick-up

      Data communication

      Distinctive ringing based on hierarchies

      Hold

      Intercom call

      or by numberEInquiry call

      Bbroker call

      Ttransfer

      Cconference

      Iintrusion

          automatic callback to busy station

          waiting off-hook

      Uunconditional forwarding

      Conditional forwarding(forwarding on no reply, forwarding on busy, immediate forwarding or forwarding on no reply and busy)

      Ssubstitution (forwarding on no reply, forwarding on busy, immediate forwarding or forwarding on no reply and busy)

      Ddon't disturb

      DISA

 

      Text mini-messaging

      Rreading of personal charging pulse meters

      Ttransparency in decade and Q 23 dialingdialling

      Rretransmission of last number dialeddialled

      ISDN supplementary services

          associate in network

      Entity routing for muti company/departement configuration

3.       ABC F: distributed GroupWare features

 

      Three party conference

      29 party conference

      Associate in network

      Immediate forwarding to associate

      Conditional forwarding to associate

      Manager/Secretary filtering team

      Object supervision: free, partially busy, totally busy, ringing)

      Hunting group of subscriber

Automatic callback on busy ABC-F links

1.          Object supervision

1.          Manager-assistant services

1.          DECT handset roaming

1.          ABC A : Centralized applications

4.       ABC A: Centralised applications

a.      Centralised or distributed centralized attendants

 

In a network, the Alcatel 44004400-PCX offers the following features:

 

      Basic call

      Number and name identification

      Class of service identification

      Dynamic access to user communication resources (DECT, Voice mail, text mail etc)

      Multi-tenant servicedisplay of name

      Ccall by name

      Call offer or by number

      EIinquiry call

      Chained call

      Bbroker call

      Ttransfer with or without presentation

      Three party conference

      Twenty nine party conferenceconference

      Intrusion

      Text advertising message on busy user display

      Text mini-messaginge

      Rreading of personal charging pulse meters

      Ttransparency in decade and Q 23 dialingdialling

      Rretransmission of last number dialeddialled

      Sstation reservation

      Trunk reservation

      Bundle reservation

          supervision of device status

      Hputting on hold

      Ooverflow ing of unanswered external calls

      Do not disturb override

      Trunk allotting with or without barring

      Entity or installation status management (day, night, fwdrenv1, renvfwd2)

      Large busy lamp field supervision

      User, abbreviated numbers and entities management

 


b.      Centralised, distributed or shared voice mail

 


b.Centralized, distributed or shared voice mail

 

The voice mail architectureapplication can adopt different configurations. The service can be centralizedcentralised for the whole network, one voice mail can be shared byetweenby severalfew nodes and another one by the remaining nodes, or each node can retain its own voice mail system.

 

 

 

 

 

 

 

 

 

 

 


 

 

 

Whatever the configuration, for the user and network manager the service is the same as equivalent to a singleunique voice mail system.

5.       ABC R: Routing

 

 


5.ABC R: Routing

 

The Alcatel 44004400-PCX ABC network is condensed by an efficient routing mechanism called adaptive routing. Each node is permanently informed of the link availability and traffic load. Thus, an Alcatel 44004400-PCX will choose immediately choose the best available route to reach the requested device wand will hilst permanently adjusting and balancinge the links traffic load. This powerful routing algorithm called "Adaptive Routing" can be composed as an O.S.P.F equivalent O.S.P.Ff data protocol equivalent for example, and provides a high security level and real link optimizationoptimisation. The services supported are the following:

 

      Adaptive routing

      Link traffic balance

      Flexible network numbering plan

      Multiple public translators

      Multi-tenant ARS

      Multiple DDI translators

      Multiple call barring translators

      Forced on-net

      Break-in

      Break-out

      Private to public overflow (according to user rights)

 


6.       Alternative route selection

 

 

 

6.Alternate route selection/Least cost routing

 

Least cost routing application embedded into the Alternate route selection (module ABC-R) can be centralised or distributed on each network node. This application has the for goal tof optimizeoptimising e communication costs through by the time- based choice of the best-priced carrier. This service is or to maintain the service level in private homogeneous network. This service is totally transparent for the network users. The services offered are the following :following:

 

      20 000 routes

      1000 routes lists

      1 to 30 digit number analysed digit number

      Number translation (add or delete)

      Direct or indirect Multi-carrier access

      5 different carriers overflow

      Overflow to other carriers according to user rights

      Cost limit perper user/Installation status

      Information voice prompt in case of overflow toward an expensive route

      Information voice prompt if n case of cheapest route is nunon available

      Automatic call back on busy cheapest route

      ARS time dependant:

  Day of week: 100 weekly tables

  Hour and minute of the day: 5 daily tables per weekly table table

1.           

a.7.       forced on-net

 

Out of Through habit, or because the user has not reprogrammed the terminal or because of the proliferation of personal directories on the PC, company employees , often call private network users via the carrier's DDI service call often private network users are called via the carrier's DDI service when a private network is available, which is not the best way of minimizingminimising communicationcall costs. In our example, an employee calls an on-net number via an external network, and for this possible internal call, the company will pay for an external communication and will lose money.

Now. The with ARS/LCR application built into the OmniPCX 4400, continually analysesise permanently the number dialled before setting up the call. , the address information (the number dialed) is analyzed. If the called partynumber belongs to thea private network subscriber, the ARS application will automatically choose automatically the cheapest route, -, in this case a private route, -, for the call without losing the benefits of the "Aadaptive Rrouting" service..

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



b.8.       break out

 

In a private network based on leased lines, one One network subscriber on a site wants to contact a correspondent located in another city. Before the call is set up, the naddress information umber dialled is analyzedanalysed by ARS/LCR. Each 4400OmniPCX 4400 knows the exact topology of the private network at all times and has real time knowledge of the availability of the different routes and their traffic loading (information via the D-channel signalingsignalling D-channel). So the 4400OmniPCX 4400 can select the cheapest route over both public and private infrastructures and make an external call into the closer addressee network site.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.           

c.9.       break-in

 

We have a private network based on leased lines a remote site in another city through a VPN configuration. Through habit, or because the user has not reprogrammed the terminal or because of the proliferation of personal directories on PC, private network users are called via the carrier's DDI service when a private network is available, which is not the best way of minimizing call costs.

In this example, a corporate subscriber wants to contact a branch subscriber, andA subscriber on remote site wants to contact another network subscriber dialscomposes the public DDI number. The Before the call is set up, the address informatiodialled number is n is analyzedanalysed by the ARS/LCR application. So , and as the addressee belongs to the corporate network (Branch in VPN configuration), the 4400OmniPCX 4400 can selectselects the cheapest route cover both ombining public and private communication infrastructuresinfrastructures. . In our example, subscribers are far apart and there is no direct private route for the call. From the internal routing, the network will also set-up A private network route and a one public one one local external are automatically selected, call to providinge athe communication at local cost, connection rather than a direct long distance call.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 


d.10.    Multiple carriers choice

 

In this example, we have two private networks. Tin different countries. These two networks retaining their own dynamic and independence in terms of configuration and resource sharing. However, they form a consistent whole as regards telephone services for users and cost optimizationoptimisation arrangements.

A network user wants to talk tocontact someone abroad. On each call, address information is analyzedanalysed by the ARS application. Abuilt into each 4400. According to the call direction, and direction and transparently to the user, the best least cost -priced carrier will be selected irrespective of the physical connection in the network. The address information is modified to suit the carrier numbering scheme (by adding, removing or converting digits) and the called number and converted number are stored in charging tickets.

When the cheapest least cost carrier for this call is not available (congested), the caller, if so entitled, is diverted to another carrier offering a higher tariff. The user is informed of routethe change of route by

a a friendly voice message. He cancans hang-up and trytryies again later if the call is not urgent, or waitwaits for the call to overflow. At the end of the waiting message, the call is diverted to the second carrier, the number being automatically adapted as in the previous case. The ARS application allows to selectselecting successively five different carriers to be . selected successively.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


A.           

A.           


A.         

A.           

A.          Automatic callback on busy bundle

A.           

A.          Automatic callback on busy bundle is made in the attachment node of the subscriber and on the bundles of this node.

A.          Identification of malicious call

A.           

A.          The identification is affected to T2 trunks and to the attachment node of the T2 bundle.

A.          Data connections

A.           

A.          Data connections are carried out in B channel (64 KB/s).

A.           


A.          VPN (Virtual Private Network) Services on the ALCATEL 4400 Network

A.           

A.          Today with the ongoing telecom market deregulation, and technology dynamic allowing to use new transport infrastructures for voice, the opportunity to set-up cost effective private networks increase dramatically.

A.          To face-up to this new environment, we improved the 4400 network in order to reduce carrier cost and administrative expense, whilst maintaining the service level whatever the transport infrastructure used.

A.          Then, according to the transport networks available we can exchange both voice and telephone signaling over the same transport infrastructure or, we can natively split voice and the associate signaling and use different networks. This service is called virtual private network or VPN.

A.          The VPN solutions can be adapted to the whole private network or to a part of it, offering inherent flexibility via advanced software and intelligent network components. The benefits are immediate: cost-saving, homogeneous numbering plan, all around the VPN sites, and homogeneity of services at a high level.

A.          ABC VPN with leased lines.

A.           

A.          The cost consideration for the private network architecture most often implies a bandwidth limitation of links. At the opposite, to provide a good quality of service the private links have to be dimensioned more or less according to the maximum traffic peak. This has for result unused bandwidth during long time period, and costly subscription. The best way to optimize bandwidth, is firstly, reduction of leased line size according to an average of traffic between sites, secondly, traffic peak overflow through an alternative network (the public ISDN for example) and adjust the networks balance according to the public cost area. This configuration offer full ABC services (ABC-F-M-R-A) whatever the network used to transport voice, the telephone signaling having always a reserved channel in the leased line (D channel).

A.          Always to optimize cost, we use Virtual DDI to overflow the communication when the leased line is saturated. A limited set of DDI numbers is reserved for this service (according to the traffic), then we can integrate subscribers with or without DDI into the network, whilst saving DDI cost subscription.

A.          The network manager can manage precisely the overflow, the service can be allocated user per user, then the cost remain under control with an accurate quality of service.

A.          When the leased link is saturated, to simplify the service, a friendly voice guide propose to user not so entitled to overflow, an  automatic call back request  operation.

A.          In addition, in the 4400 metering application, a flag is associate to each overflowed communication. Thanks to that, the network manager has precise and factual indicator to analyze over a time period, if the service remain consistent, otherwise he can react accordingly.

A.           

A.           

A.         

A.           

A.           

A.           

A.           

A.           

A.           

A.          ABC VPN without leased line for voice

A.           

A.          For some configuration with low traffic level a dedicate E1 link cannot be justified. For such topology, A4400 provides the solution to interconnect systems with full ABC services. We use The standard public network to transport voice, and another network to transport signaling as :

A.           

A.          TCP-IP network

A.          Synchronous V24 modem (Analog ABC)

A.          Packet X25 in D channel (LLP) where available.

A.         
 


A.          The B-channel can be carried on ISDN public network, or a QISG network.

A.           

A.         

A.          Networking on analog tie-lines

A.           

A.          It is possible to set-up an efficient private ABC network providing the complete set of services (ABC-F-R-M-A) via analog tie-lines. For that an analog leased line is dedicated to support the telephone signaling, via a couple of synchronous or asynchronous modems (from 9600b/s up to 34800b/s), the voice is supported by standard tie-lines. With analog ABC network we have the same benefits as digital lines, we can overflow communications through the public ISDN network when the links are busy, or out of service. To provide this service a built-in application check permanently the availability of free tie-line by exchange of DTMF frequencies between sites inter connected.

A.           

A.         

A.          ISVPN: Integrated Service Virtual Private Network

 

This solution provides a subset of ABC private network by using only the ISDN network, no leased line is required neither for voice nor for telephone signaling. The voice is transported over standard public ISDN network, the signaling transport is based on the USS1 service provides by ISDN Public Network.

 

          This solution enables you to benefit of services like:

          Distribution of incoming public calls based on virtual DID

          Homogeneous private numbering plan

          ISVPN call is seen as an internal call, not a public one

          Name identification (with transport of number)

          Optimized transfer (loop avoidance & optimized call forwarding)

          Call back request (on 40011,up to 4040 Reflex sets)

          Intrusion

          Other 4400 features over ISDN without ISVPN added value

          Call distribution in network: centralized attendants

          Inter-working with ABC networks

          Centralized management

A.           

10.A.DPNSS based networking

 

The Alcatel 4400 offers a compliant legacy DPNSS interface and protocol, mainly used to connect the voice communication system to:

         Installed base DPNSS not compatible with QSIG

         VPN offer of BT ( FEATURENET) and Mercury in UK

         Alternative carriers, e.g. GSM operators in Germany and Sweden...

         Legacy applications

 

The DPNSS services supported are :

 

         Voice and data call ( 6 and 7)

         Call back when free ( call completion on busy set) (9)

         Intrusion (10)

         Call forwarding (11)

         Hold (12)

         Inquiry call (13)

         Transfer (13)

         Conference (13)

         Call offer (14)

         Service independent string (16) Name

         Call waiting (17)

         Route optimization (19)

         Centralized night service (25)

         Do not disturb (32)

         Loop avoidance ( 37)

 


11.    ABC M: Management

 

The management tools are based on powerful stations running on W95 or UNIX. They provide a complete set of Alcatel graphical applications designed to facilitate day-to-day management operations. The management stations are connected through a native 10BT Ethernet 10BT link, to one of a network node, and adopt the client client/server architecture and the object model. DThe dialogue between the management station and the 4400OmniPCX 4400 is based on standard protocols: FTP, CMIP/CMISE. We use CMIP/CMISE, rather than SNMP as it is because its more powerful, and has the ability to manage a complete set of instances (create, suppressdelete, etc.). Therefore we integrate SNMP protocol in order to federate the network supervision with other company management tools.

The mThe management can be centralizedcentralised, distributed or both;, many management stations can operate simultaneously without problems withof data basesdatabase constancy.

 

 

 

 

 

 

 

 

 

 

 

 


 

a.      Broadcast mechanism

 

The management station manages one, several or all the nodes inside ana homogeneous OmniPCX 4400 network. This facility is given without using any bandwidth on the B channels of the ABC links, but by using the Data part of the signalingsignalling channel (D channel) and a powerful mechanism called: Broadcast. From now on, with the 4400OmniPCX 4400 the network manager can program or modify -from ONE window- any system, subscriber, or voice mails parameters from ONE window. Automatically Tthe other network nodes and also the centralizedcentralised directory are immediately informed automatically and their data basedatabase updated with consistent information.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 


b.      Audit mechanism

 

Another service is supported by ABC-R is the Audit service. This mechanism has been design to facilitate network reconfiguration or evolution, and also to easily integrate easily a voice mail in a second step. After a local configuration, thanks to the Audit command, a new node learn automatically learns the network configuration and updates its database (network translator, pPhone book, etc.), the voice mail updates the subscribers database.

 

c.      Voice mail management

 

When an user is created in a node, the network manager attributes voice mail services (mail box and user profile) directly from the user management window (no need offor two management operations). Automatically Tthe voice mail will automatically create a virtual " user mail box"  in the other network voice mails. Then eEach user can then create distribution lists, transfer messages etc. to the other users in a network as if they wereare in the same node.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


E.     ISVPN: Integrated Service Virtual Private Network

 

This solution provides a subset of an ABC private network by using only the ISDN network, no leased line is required neither for voice nor for telephone signalling. The voice is transported over the standard public ISDN network, the signalling transport is based on the USS1 service provideds by the ISDN Public Network.

 

This solution enables to benefit of from services like:

 

      Distribution of incoming public calls based on virtual DID

      Homogeneous private numbering plan

      ISVPN call is seen as an internal call, not a public one

      Name identification (with transport of number)

      Optimised transfer (loop avoidance & optimised call forwarding)

      Call back request (on 40011 ,up to 4040 Reflex sets)

      Intrusion

      Other 4400-PCX features over ISDN without ISVPN added value

      Call distribution in network: centralised attendants

      Inter-working with ABC networks

      Centralised management

F.      DPNSS based networking

 

The Alcatel 4400-PCX offers a compliant legacy DPNSS interface and protocol, mainly used to connect the voice communication system to:

 

      DPNSS iInstalled base DPNSS not compatible with QSIG

      VPN offer of BT ( FEATURENET) and Mercury in UK

      Alternative carriers, e.g. GSM operators in Germany and Sweden...

      Legacy applications

 

The DPNSS services supported are:

 

      Voice and data call ( 6 and 7)

      Call back when free ( call completion on busy set) (9)

      Intrusion (10)

      Call forwarding (11)

      Hold (12)

      EInquiry call (13)

      Transfer (13)

      Conference (13)

      Call offer (14)

      Service independent string (16) Name

      Call waiting (17)

      Route optimisation (19)

      Centralised night service (25)

      Do not disturb (32)

      Loop avoidance ( 37)


G.   Master /slave (country dependant)

 


Master/slave (country dependent)

 

The master / slave configuration offers multimMulti- site companies common and centralizedcentralised resources and telephony features on an analoganalogue network. The centralizedcentralised services are as the followings:

 

      external bundle and DID

      attendants

      closed numbering plan

      display/name

      call by name/number

      ienquiry call

      broker call

      transfer

      conference

      substitution

      DISA

      unconditional forwarding

 

One master hasserves one or several slaves.

 

Each slave is linked to the master by an automatic tie line analogue trunk with two or four wires (a, b, E&M).

DialingDialling can be transmitted in DTMF Q 23.

 

In addition to the features offered locally by each PBX to its own users, the Alcatel 4400OmniPCX 4400 master function offers:

1.       Operators of the master

 

      Handling of outgoing and incoming calls on the bundles of the master with the same possibilities for the stations of the slave or slaves as for the stations of the master.

      Handling of local waiting queue for master and slave stations.

2.       Metering

 

Re-transmitting the pulses received for outgoing calls from the master bundle towards the slave metering system.

Each slave is linked to the master by an automatic tie line analogue trunk (a, b, E&M).

DialingDialling can be transmitted in Q 23 frequencies and , .

eEach slave can have its own external bundles and operators.