AudioCodes MSBG Series User Manual

User's Manual 996 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Parameter Description
table:
SIP Reason Code
ISDN Redirecting Reason
302 - Moved Temporarily Call Forward Universal (CFU)
408 - Request Timeout Call Forward No Answer (CFNA)
480 - Temporarily Unavailable
487 - Request Terminated
486 - Busy Here Call Forward Busy (CFB)
600 - Busy Everywhere
 If history reason is a Q.850 reason, it is translated to the SIP
reason (according to the SIP-ISDN tables) and then to ISDN
Redirect reason according to the table above.
User Agent Server (UAS) Behavior:
 The History-Info header is sent only in the final response.
 Upon receiving a request with History-Info, the UAS checks the
policy in the request. If a 'session', 'header', or 'history' policy tag is
found, the (final) response is sent without History-Info; otherwise, it
is copied from the request.
Note: The parameter is applicable only to digital interfaces.
Use Tgrp Information
configure voip > sip-
definition settings > use-
tgrp-inf
[UseSIPTgrp]
Enables the use of the SIP 'tgrp' parameter. This parameter specifies
the Trunk Group to which the call belongs (according to RFC 4904).
For example, the SIP message below indicates that the call belongs to
Trunk Group ID 1:
INVITE sip::+16305550100;tgrp=1;trunk-
context=example.com@10.1.0.3;user=phone SIP/2.0
 [0] Disable = (Default) The 'tgrp' parameter isn't used.
 [1] Send Only = The Trunk Group number or name (configured in
the Trunk Group Settings table) is added to the 'tgrp' parameter
value in the Contact header of outgoing SIP messages. If a Trunk
Group number / name is not associated with the call, the 'tgrp'
parameter isn't included. If a 'tgrp' value is specified in incoming
messages, it is ignored.
 [2] Send a
nd Receive = The functionality of outgoing SIP messages
is identical to the functionality described for option [1]. In addition,
for incoming SIP INVITEs (IP-to-Tel), if the Request-URI includes a
'tgrp' parameter, the device routes the call according to t
hat value (if
possible). The Contact header in the outgoing SIP INVITE (Tel-to-
IP call) contains "tgrp=<source trunk group ID>;trunk-
context=<gateway IP address>”. The <source trunk group ID> is
the Trunk Group ID where incoming calls from Tel is received. For
IP-to-Tel calls, the SIP 200 OK device's response contains
“tgrp=<destination trunk group ID>;trunk-context=<gateway IP
address>”. The <destination trunk group ID> is the Trunk Group ID
used for outgoing Tel calls. The <gateway IP address> in “trunk-
context” can be configured using the SIPGatewayName parameter.
 [3] Hotline = Interworks the hotline "Off Hook Indicator" parameter
between SIP and ISDN. The option is applicable only to digital
interfaces.

IP-to-ISDN calls:
- The device interworks the SIP tgrp=hotline parameter
(received in INVITE) to ISDN Setup with the Off Hook Indicator

AudioCodes MSBG Series Specifications

General

Brand	AudioCodes
Model	MSBG Series
Category	Gateway
Language	English