AudioCodes Mediant 800 MSBG - Page 816

SIP User's Manual 816 Document #: LTRT-12804
Mediant 800 MSBG
Parameter Description
Web: Enable QSIG Transfer
Update
[EnableQSIGTransferUpdate]
Determines whether the device interworks QSIG Facility
messages with callTranferComplete invoke application protocol
data unit (APDU) to SIP UPDATE messages with P-Asserted-
Identity and optional Privacy headers. This feature is supported
for IP-to-Tel and Tel-to-IP calls.
 [0] Disable (default) = Ignores QSIG Facility message with
callTranferComplete invoke
 [1] Enable
For example, assume A and C are PBX call parties, and B is
the SIP IP phone:
1 A calls B; B answers the call.
2 A places B on hold, and calls C; C answers the call.
3 A performs a call transfer (the transfer is done internally by
the PBX); B and C are connected to one another.
In the above example, the PBX updates B that it is now talking
with C. The PBX updates this by sending a QSIG Facility
message with callTranferComplete invoke APDU. The device
interworks this message to a SIP UPDATE message containing
a P-Asserted-Identity header with the number and name
derived from QSIG callTranferComplete redirectionNumber
and redirectionName.
Note: For IP-to-Tel calls, the redirectionNumber and
redirectionName in the callTRansferComplete invoke is derived
from the P-Asserted-Identity and Privacy headers.
[CASSendHookFlash]
Enables sending Wink signal toward CAS trunks.
 [0] = Disable (default).
 [1] = Enable.
If the device receives a mid-call SIP INFO message with
flashhook event body (as shown below) and this parameter is
set to 1, the device generates a wink signal toward the CAS
trunk. The CAS wink signal is done by changing the A bit from
1 to 0, and then back to 1 for 450 msec.
INFO sip:4505656002@192.168.13.40:5060
SIP/2.0
Via: SIP/2.0/UDP 192.168.13.2:5060
From: <sip:06@192.168.13.2:5060>
To:
<sip:4505656002@192.168.13.40:5060>;tag=13287
8796-1040067870294
Call-ID: 0010-0016-D69A7DA8-1@192.168.13.2
CSeq:2 INFO
Content-Type: application/broadsoft
Content-Length: 17
event flashhook
Note: This parameter is applicable only to T1 CAS protocols.