The Avaya IP500 DS30A Module (700500698) provides 30 digital TCM ports for Nortel digital telephones. It connects to your IP Office 500 V2 control unit. It can be wall mounted or rack mounted near the control unit.
The DS30A allows you to add your Nortel M or T series digital phones to IP Office Connections made through two RJ21 connectors. This module does not support any Avaya phones.
These modules are compatible with the current IP500 Avaya IP Office system.