Avaya Definity TN763C Auxiliary Trunk (Refurbished) Phones The Nortel M522 Expansion Module

The Nortel M522 Expansion Module is compatible with the M5216 and M5316 phones

The system supports all your basic features and more advanced features such as DID with optional equipment

Meridian Option 81

change mailbox call answer mode

This phone has a Voice Announce key that allows for hands-free communication on internal calls

Avaya Definity TN763C Auxiliary Trunk (Refurbished) Phones The Nortel M522 Expansion ModuleKey Features: Provides 4 ports Each port has T, R, SZ, SZ1, S, and S1 signal leads Used for on premises applications such as music on hold, loudspeaker paging, code calling, and recorded telephone dictation access