AudioCodes Mediant 3000 User Manual page 1016

Parameter
Call Forking Parameters
Forking Handling Mode
[ForkingHandlingMode]
Forking Timeout
[ForkingTimeOut]
Tel2IP Call Forking Mode
[Tel2IPCallForkingMode]
[ForkingDelayTimeForInvite]
Gateway Routing Policy Table
User's Manual
destinations (terminating fax machine).
The valid value range is 1-10. The default is 5.
Determines how the device handles the receipt of multiple SIP 18x
forking responses for Tel-to-IP calls. The forking 18x response is the
response with a different SIP to-tag than the previous 18x response.
These responses are typically generated (initiated) by Proxy /
Application servers that perform call forking, sending the device's
originating INVITE (received from SIP clients) to several destinations,
using the same Call ID.

[0] Parallel handling = (Default) If SIP 18x with SDP is received,
the device opens a voice stream according to the received SDP
and disregards any subsequently received 18x forking responses
(with or without SDP). If the first response is 180 without SDP, the
device responds according to the PlayRBTone2TEL parameter
and disregards the subsequent forking 18x responses.

[1] Sequential handling = If 18x with SDP is received, the device
opens a voice stream according to the received SDP. The device
re-opens the stream according to subsequently received 18x
responses with SDP, or plays a ringback tone if 180 response
without SDP is received. If the first received response is 180
without SDP, the device responds according to the
PlayRBTone2TEL parameter and processes the subsequent 18x
forking responses.
Note: Regardless of the parameter setting, once a SIP 200 OK
response is received, the device uses the RTP information and re-
opens the voice stream, if necessary.
Defines the timeout (in seconds) that is started after the first SIP 2xx
response has been received for a User Agent when a Proxy server
performs call forking (Proxy server forwards the INVITE to multiple
SIP User Agents). The device sends a SIP ACK and BYE in
response to any additional SIP 2xx received from the Proxy within
this timeout. Once this timeout elapses, the device ignores any
subsequent SIP 2xx.
The number of supported forking calls per channel is 20. In other
words, for an INVITE message, the device can receive up to 20
forking responses from the Proxy server.
The valid range is 0 to 30. The default is 30.
Enables Tel-to-IP call forking, whereby a Tel call can be routed to
multiple IP destinations.

[0] Disable (default)

[1] Enable
Note: Once enabled, routing rules must be assigned Forking Groups
in the Tel-to-IP Routing table.
Defines the interval (in seconds) to wait before sending INVITE
messages to the other members of the forking group. The INVITE is
immediately sent to the first member.
The valid value range is 0 to 40. The default is 0 (i.e., sends
immediately).
1016
Description
Document #: LTRT-89730
Mediant 3000