Capacity

The following are the supported capacity limits for a Small Community Network system.

Note: When a Unified Communications Module is used in the network:

• to provide the Voicemail Pro service, the maximum number of systems reduces to 6.

• to provide the Avaya one-X Portal service, the maximum number of users reduces to 200.

Configuration Summary

To set up a Small Community Network, the following are required:

• A working IP Office Line trunk between the systems, that has been tested for correct voice and data traffic routing. The arrangement the IP Office Line trunks must meet the requirements detailed in Supported Small Community Network Layouts.

• Within a particular system, all SCN trunks should be on the same LAN interface.

• VCM channels are required in all systems.

• The extension, user and group numbering on each system must be unique.

• The user and group names on each system must be unique.

• We also recommend that all names and numbers (line, services, etc) on the separate systems are kept unique. This will reduce potential maintenance confusion.

• The Outgoing Group ID on the Small Community Network lines should be changed to a number other than the default 0.

• All systems should use the same set of telephony timers, especially the Default No Answer Time.

• Check that all systems in the network are configured to use the same Codecs.

• Only one system should have its Voicemail Type set to Voicemail Pro/Lite. All other systems must be set to either Centralized Voicemail or Distributed Voicemail. No other settings are supported.

Software Level Interoperation

A Small Community Network is supported between IP Office systems with the same major software level or one level of difference in major software level. For example, between 9.1 and 9.0 (same major level) and between 8.0 and 9.0 (one major level of difference).

• This option is intended mainly to allow the phased upgrading of sites within a Small Community Network.

• It is still recommended that all systems within a network are upgraded to the same level where possible.

• In a Small Community Network that includes differing levels of software, the network features and capacity supported are those of the lowest level of software within the network.