Specifications

Product Description

IP Office Release 7.0

Page 258

Issue 22.a.- (21 March 2011)

· Resilient Multi-Site Networking(SCN)(see the diagram below)

In an SCN configuration of System "A" and System "B" where the centralized voicemail is connected

to System B, and a number of IP telephones are connected to either System A or System B. If

System "B" fails then:

· System A will automatically take over from System B and support Avaya IP telephones, hunt

groups, and DHCP if required.

· VoiceMail Pro will reregister to System A.

· For users in an Small Community Network (SCN), when they hot desk to another IP Office

system, they retain their licensed profile setting as configured on their home system.

· All System B users’ Personal contacts/Call Logs will continue to be available (1600 Telephones).

For Multi-Site Networks (SCN), VCM modules are required in all systems being connected. The IP lines may be

configured in a start or a meshed configuration. One of the advantages of a meshed configuration is that it

removes the risk of a single point of failure within the network. Also the names and numbers (groups, line,

services, etc) on the separate IP Office systems should be unique to reduce potential maintenance confusion.

Each IP Office system broadcasts UDP messages on Port 50795. These broadcasts typically recur every 30

seconds but BLF updates are potentially more frequent. There are no updates if there is no activity and the

overall level of traffic is very low – typically less than 1 kbps per system.