AudioCodes mediapack MP-500 User Manual page 417

SIP User's Manual
Parameter
Web: Reasons for Alternative IP-to-Tel Routing Table
EMS: Alt Route Cause IP to Tel
[AltRouteCauseIP2Tel]
Version 5.8
[\AltRouteCauseTel2IP]
For example:
AltRouteCauseTel2IP 0 = 486; (Busy Here)
AltRouteCauseTel2IP 1 = 480; (Temporarily Unavailable)
AltRouteCauseTel2IP 2 = 408; (No Response)
Notes:
This parameter can include up to 5 indices.
The reasons for alternative routing for Tel-to-IP calls only
apply when a Proxy is not used.
When there is no response to an INVITE message (after
INVITE retransmissions), the device issues an internal 408 'No
Response' implicit release reason.
The device sends the call to an alternative IP route only after
the call has failed and the device has subsequently attempted
twice to establish the call unsuccessfully.
The device also plays a tone to the endpoint whenever an
alternative route is used. This tone is played for a user-defined
time (configured by the parameter AltRoutingToneDuration).
For an explanation on using ini file table parameters, refer to
''Format of ini File Table Parameters'' on page 273.
This ini file table parameter configures call failure reason values
received from the Tel side . If a call is released as a result of one
of these reasons, the device attempts to locate an alternative
Hunt Group for the call in the 'IP to Hunt Group Routing' table.
The format of this parameter is as follows:
[AltRouteCauseIP2Tel]
FORMAT AltRouteCauseIP2Tel_Index =
AltRouteCauseIP2Tel_ReleaseCause;
[\AltRouteCauseIP2Tel]
For example:
AltRouteCauseIP2Tel 0 = 3
AltRouteCauseIP2Tel 1 = 1
AltRouteCauseIP2Tel 2 = 17 (Busy Here)
Notes:
This parameter can include up to 5 indices.
This table can be used for example, in scenarios when the
destination is busy and the release reason #17 is issued, or
for other call releases that issue the default release reason
(#3).
The device also plays a tone to the endpoint whenever an
alternative route is used. This tone is played for a user-defined
time (configured by the parameter AltRoutingToneDuration).
For an explanation on using ini file table parameters, refer to
''Format of ini File Table Parameters'' on page 273.
417
6. Configuration Parameters Reference
Description
(No Route to Destination)
(Unallocated Number)
October 2009