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VMIe protocol
192
VMIe protocol
Voice mail analog connections require the VMIe proto-
col (Voice mail Interface - extended). Voice mail commu-
nication takes place via DTMF signals that contain the
following information:
1. Internal call from Extension 16 to the VMIe group:
***1***16*1;
2. Direct internal call from Extension 15 to Extension
11, forwarded to the VMIe group (*11):
***3****15****11*1;
1
Type of Call (TOC)
Required
Fixed size: 4 characters
Format: “***n” (n = code in table below)
Code Ty p e o f c a l l Code Ty p e o f c a l l
1 Internal for voice mail 2 Not used
3 Call forwarding (*11) 4 Second attendant (*14)
5 Not used 6 Not used
7 Not used 8 Not used
2
Calling extension
Required item
Fixed size: 6 DTMF signals
Format: “****i” (i = calling extension)
External call format: always “******”
Note: if an extension is
longer, the DTMF digit “*”
in the protocol is replaced
by the additional extension
digit.
3
Extension called
Required element for calls Type 3 and 4.
This element remains blank for all other types of calls
Fixed size: 6 DTMF signals
Format: “****i” (i = extension called)
Note: if an extension is
longer, the DTMF digit “*”
in the protocol is replaced
by the additional extension
digit.
4
Additional information about the calling extension
Optional item
Fixed size: 2 DTMF signals
Format: “*i” (i = code in table below)
Code Information
1 The calling extension is a regular internal extension
2 Not used
3 The calling extension is an external user on an analog line.
4 The calling extension is an external user on a digital line
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