The TN793B is a circuit pack that supports twenty-four analog telephones, on Definity Release 6.3 or higher. The TN793B also supports Caller ID on Definity R8.2 or higher.
Technology: VoIP Technology Unified Communications Esnatech
Products: Avaya IP Office Aura-Communication Manager Circuit Packs Definity Definity Circuit Packs Intuity Audix Avaya Telephones
Octel 200/300 250/350 VMX 100 / VP 100
Plantronics Polycom