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Programming the Incoming Line Group
1. For SIP trunk programming you start with an ILG and OLG assignment.
2. For ILG Programming create an ILG group (In this example Group Number 8).
3. FB01 - Trunk type- select SIP
4. FB03 - CO service type- DID
5. FB11 - Number of DID Digits- number of incoming digits to use from the dialed number to route the
call.
DID routing must be set up to route incoming SIP calls to their desired destinations. That programming is
the same as any other trunk group type. If that routing is not set up incoming INVITEs (calls) will fail.
Note:
SIP trunking requires a license for each trunk. No channel group can successfully be programmed
without a license.
SIP trunking is supported by the MIPU card only. It can share connections of its ports between stations and
IPTs and other IPU devices. The IPTs are the only devices that are can be assigned equipment number
0000. That is, SIP stations, VM ports, SIP trunks and attendant consoles are fixed resources. IPTs do not
need to be fixed assignments (unless they are assigned a fixed equipment number, not 0000).
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Programming
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