Specifications

Product Description

IP Office Release 7.0

Page 248

Issue 22.a.- (21 March 2011)

8. Public and Private Voice Networks

With Avaya IP Office you can be networked via T1, PRI and BRI ISDN, including VoIP on the company WAN.

Networking maximizes the potential of your business office locations and remote workers - building the best

possible foundation for your future growth. IP Office provides each location with a scalable (up to 384

extensions) telephony solution that supports voice networking, and offers:

· Uniform dialing plan, making it easy to call co-workers anywhere on the network and improve customer

service

· Consistent user experience by sharing the same telephones and messaging interface as in headquarters

· A user-defined central directory that is automatically synchronized

· Automatic Route Selection to optimize routing and bandwidth management

· Centralized voicemail and/or the ability to network voicemail systems together

The benefits of networking:

· Leverage any existing investment in Avaya systems at other sites.

· Centralize services (e.g. operator, voicemail) as well as management and administration to reduce costs.

· Speed deployment of remote offices, respond quickly to market demands.

· Improve inter-site communication to simplify information exchange.

Private Circuit Switched Voice Networking

Private voice networks are built using structured leased line circuits (E1 or T1) or by establishing permanently

connected 'B' channels over ISDN circuits between IP Office systems. Each channel within the E1 or T1 interface

can provide a single voice or 64K/56K data call. Where leased line circuits are used within a private networking

scenario, these E1 or T1 interfaces are typically configured to use QSIG signaling between sites.

QSIG provides a level of voice feature transparency between PBXs and is the favored signaling standard within

multiple vendor and international voice networks. The IP Office E1 or T1 module terminates a QSIG connection

with a 120 ohm RJ45 interface.

IP Office supports the following QSIG services across this network:

· Simple Telephony Call/Basic Call: ETS300 171/172.

· Circuit Switched Data Call/Basic Call: ETS300 171/172.

· Called/Calling Line ID Presentation: ETS300 173.

· Called/Calling Name Presentation: (SS-CNIP, SS-CONP, SS-CNIR) ETS300 237/238.

· Message Waiting: (SS-MWI) EN301 260/255.

· Transfer: (SS-CT) ETS 300 260/261.

Circuit Switched Voice Networking