Evocal

The Avaya IP 403 Office phone system supports 3 Expansion Modules providing a combination of up to 100 analogue and digital extensions, with capacity for 8 analogue trunks or 2 digital trunk (48 T1 channels or 60 E1 channels).

Additional analogue trunks can be provisioned using the IP400 Analogue trunk 16 module. Features include 20 optional voice compression channels, 8 Digital Station ports, 2 Analogue Telephone ports, 8 dual speed LAN hub ports, and 18 data channels. Data channels are used for Routing, RAS and Voicemail applications.

All IP Office models support common software, telephones, and applications.