VCM Channels are Voice Compression Modules, which enable use of IP phones on your IP Office system. It is used for VoIP calls, IP networking and SIP trunks. The actual number of channels provided is controlled by the VCM Channels licenses within your IP Office. IP Office, VMC’s come as 10 on the Combo Card, or as separate cards 32 and 64.
// FAQs // What is the VCM on the Avaya IP Office?