User's Manual
516
Document #: LTRT-65417
MP-11x & MP-124
Parameter
Description
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.
Web: Use Tgrp Information
EMS: Use SIP Tgrp
[UseSIPTgrp]
Determines whether the SIP 'tgrp' parameter is used. This SIP
parameter specifies the Hunt Group to which the call belongs (according
to RFC 4904). For example, the SIP message below indicates that the
call belongs to Hunt 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 Hunt Group number or name (configured in the
Hunt Group Settings) is added to the 'tgrp' parameter value in the
Contact header of outgoing SIP messages. If a Hunt 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 and Receive = The functionality of outgoing SIP messages
is identical to the functionality described for option
[1].
In addition, for
incoming SIP INVITEs, if the Request-URI includes a 'tgrp'
parameter, the device routes the call according to that 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 Hunt Group ID
where incoming calls from Tel is received. For IP-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 Hunt Group ID used for outgoing Tel calls. The
<gateway IP address> in “trunk-context” can be configured using the
SIPGatewayName parameter.
Note:
IP-to-Tel configuration (using the PSTNPrefix parameter)
overrides the 'tgrp' parameter in incoming INVITE messages.
Web/EMS: TGRP Routing
Precedence
[TGRProutingPrecedenc
e]
Determines the precedence method for routing IP-to-Tel calls -
according to the IP to Hunt Group Routing Table or according to the SIP
'tgrp' parameter.
[0]
= (Default) IP-to-Tel routing is determined by the IP to Hunt
Group Routing Table (PSTNPrefix parameter). If a matching rule is
not found in this table, the device uses the Hunt Group parameters
for routing the call.
[1]
= The device first places precedence on the 'tgrp' parameter for
IP-to-Tel routing. If the received INVITE Request-URI does not
contain the 'tgrp' parameter or if the Hunt Group number is not
defined, then the IP to Hunt Group Routing Table is used for routing
the call.
Below is an example of an INVITE Request-URI with the 'tgrp'
parameter, indicating that the IP call should be routed to Hunt Group 7:
INVITE sip:200;tgrp=7;trunk-
context=example.com@10.33.2.68;user=phone SIP/2.0
Notes:
For enabling routing based on the 'tgrp' parameter, the UseSIPTgrp
parameter must be set to 2.
Summary of Contents for MediaPack MP-112
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Page 21: ...Part I Getting Started with Initial Connectivity ...
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Page 31: ...Part II Management Tools ...
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Page 91: ...Part III General System Settings ...
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Page 103: ...Part IV General VoIP Configuration ...
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Page 199: ...Part V Gateway Application ...
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Page 287: ...Part VI Stand Alone Survivability Application ...
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Page 319: ...Part VII Maintenance ...
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Page 347: ...Part VIII Status Performance Monitoring and Reporting ...
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Page 377: ...Part IX Diagnostics ...
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Page 403: ...Part X Appendix ...
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