Leaving a voicemail for a user or hunt group uses one licensed voicemail channel and consumes one from the indirect media call capacity of the Voicemail Pro server.
If the endpoint is remote, an IP Office Line (SCN trunk) channel is used.
If the source of the call is digital/analog, a VCM channel is also required.
A voicemail collect operation uses the same resources as voicemail leave. Invoking an Auto Attendant, Announcement or IVR script uses the same resources as voicemail, and is taken from the same pool of licenses and voicemail channel capacity; one active Auto Attendants/IVR/Announcement takes one channel and license.
The total solution voicemail channel capacity is determined by a number of factors:
The number of per-server supported voicemail channels:
Server |
Maximum Voicemail Channels |
Dell R660/Virtual |
250 |
Dell R260 |
75 |
IP500 V2 |
40 |
If dual Voicemail Pro feature is active (IP Office Select and IP Office Subscription only) – this doubles the maximum capacity to 500 channels.
The number of licensed voicemail channels: Each active master Voicemail Pro must have its own licenses. It inherits the other set when active as a backup.
Call recording also uses licensed voicemail channels. One active recording channel consumes one voicemail/AA channel.