AudioCodes Mediant 500 E-SBC, User Manual

Page: 868 / 920

User's Manual 868 Document #: LTRT-10437
Mediant 500 E-SBC
Parameter Description
mechanism is used to remove the "FAX" prefix before
sending the fax, if required. If the initial INVITE used to
establish the voice call (not fax) was already sent, a
CANCEL (if not connected yet) or a BYE (if already
connected) is sent to release the voice call.

[0] Disable (default)

[2] Progress and Delay = Incoming ISDN calls are
delayed until a CNG tone detection or timeout, set by the
FaxReroutingDelay parameter. If the EnableComfortTone
parameter is set to 1, a Q.931 Progress message with
Protocol Discriminator set to 1 is sent to the PSTN and a
comfort tone is played accordingly to the PSTN. When
the timeout expires, the device sends an INVITE to a
specific IP Group or to a fax server, according to the
Outbound IP Routing table rules. This option is applicable
only to ISDN.

[3] Connect and Delay = Incoming ISDN calls are
delayed until a CNG tone detection or timeout, set by the
FaxReroutingDelay parameter. A Q.931 Connect
message is sent to the PSTN. If the EnableComfortTone
parameter is set to 1, a comfort tone is played to the
PSTN. When the timeout expires, the device sends an
INVITE to a specific IP Group or to a fax server according
to the Outbound IP Routing table rules. This option is
applicable only to ISDN.
Note: This parameter has replaced the EnableFaxRerouting
parameter. For backward compatibility, the
EnableFaxRerouting parameter set to 1 is equivalent to the
FaxReroutingMode parameter set to 1.
[FaxReroutingDelay] Defines the maximum time interval (in seconds) that the
device waits for CNG detection before re-routing calls
identified as fax calls to fax destinations (terminating fax
machine).
The valid value range is 1-10. The default is 5.
Call Forking Parameters
Web/EMS: Forking Handling Mode
CLI: forking-handling
[ForkingHandlingMode]
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