Version 7.2 1285 Mediant 800B Gateway & E-SBC
User's Manual 72. Configuration Parameters Reference
Parameter Description
release reason for Tel-to-IP calls is provided in SIP 4xx, 5xx, and 6xx
response codes.
The format of the ini file table parameter is as follows:
[AltRouteCauseTel2IP]
FORMAT AltRouteCauseTel2IP_Index =
AltRouteCauseTel2IP_ReleaseCause;
[\AltRouteCauseTel2IP]
For example:
AltRouteCauseTel2IP 0 = 486; (Busy Here)
AltRouteCauseTel2IP 1 = 480; (Temporarily Unavailable)
AltRouteCauseTel2IP 2 = 408; (No Response)
For more information, see 'Alternative Routing Based on SIP
Responses' on page 544.
Reasons for Alternative IP-to-Tel Routing Table
Reasons for Alternative IP-to-
Tel Routing
configure voip > gateway
routing alt-route-cause-ip2tel
[AltRouteCauseIP2Tel]
Defines call failure reason values received from the Tel side (in Q.931
presentation). If a call is released as a result of one of these reasons,
the device attempts to locate an alternative Trunk Group for the call in
the IP-to-Tel Routing table.
The format of the ini file table parameter is as follows:
[AltRouteCauseIP2Tel]
FORMAT AltRouteCauseIP2Tel_Index =
AltRouteCauseIP2Tel_ReleaseCause;
[\AltRouteCauseIP2Tel]
For example:
AltRouteCauseIP2Tel 0 = 3 (No Route to Destination)
AltRouteCauseIP2Tel 1 = 1 (Unallocated Number)
AltRouteCauseIP2Tel 2 = 17 (Busy Here)
AltRouteCauseIP2Tel 2 = 27 (Destination Out of Order)
For more information, see 'Alternative Routing to Trunk upon Q.931
Call Release Cause Code' on page 549.
Forward On Busy Trunk Destination Table
Forward On Busy Trunk
Destination
configure voip > gateway
routing fwd-on-bsy-trk-dest
[ForwardOnBusyTrunkDest]
Defines the Forward On Busy Trunk Destination table. This table
allows you to define an alternative IP destination if a trunk is busy for
IP-to-Tel calls.
The format of the ini file table parameter is as follows:
[ForwardOnBusyTrunkDest]
FORMAT ForwardOnBusyTrunkDest_Index =
ForwardOnBusyTrunkDest_TrunkGroupId,
ForwardOnBusyTrunkDest_ForwardDestination;
[\ForwardOnBusyTrunkDest]
For example, the below configuration forwards IP-to-Tel calls to
destination user “112” at host IP address 10.13.4.12, port 5060, using
transport protocol TCP, if Trunk Group ID 2 is unavailable:
ForwardOnBusyTrunkDest 1 = 2,
112@10.13.4.12:5060;transport=tcp;
For more information, see 'Alternative Routing to IP Destination upon
Busy Trunk' on page 551.
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