Version 6.4 613 March 2012
SIP User's Manual A. Configuration Parameters Reference
Parameter Description
'Release Reason Mapping' on page 242.
Web: Enable Microsoft
Extension
[EnableMicrosoftExt]
Enables the modification of the called and calling number for numbers
received with Microsoft's proprietary "ext=xxx" parameter in the SIP
INVITE URI user part. Microsoft Office Communications Server
sometimes uses this proprietary parameter to indicate the extension
number of the called or calling party.
[0] Disable (default)
[1] Enable
For example, if a calling party makes a call to telephone number
622125519100 Ext. 104, the device receives the SIP INVITE (from
Microsoft's application) with the URI user part as INVITE
sip:622125519100;ext=104@10.1.1.10 (or INVITE
tel:622125519100;ext=104). If the parameter EnableMicrosofExt is
enabled, the device modifies the called number by adding an "e" as
the prefix, removing the "ext=" parameter, and adding the extension
number as the suffix (e.g., e622125519100104). Once modified, the
device can then manipulate the number further, using the Number
Manipulation tables to leave only the last 3 digits (for example) for
sending to a PBX.
EMS: Use SIP URI For
Diversion Header
[UseSIPURIForDiversionHe
ader]
Defines the URI format in the SIP Diversion header.
[0] = 'tel:' (default)
[1] = 'sip:'
[TimeoutBetween100And18
x]
Defines the timeout (in msec) between receiving a 100 Trying
response and a subsequent 18x response. If a 18x response is not
received within this timeout period, the call is disconnected.
The valid range is 0 to 180,000 (i.e., 3 minutes). The default value is
32000 (i.e., 32 sec).
[EnableImmediateTrying]
Determines if and when the device sends a 100 Trying in response to
an incoming INVITE request.
[0] = 100 Trying response is sent upon receipt of a Proceeding
message from the PSTN.
[1] = 100 Trying response is sent immediately upon receipt of
INVITE request (default).
[TransparentCoderPresent
ation]
Determines the format of the Transparent coder representation in the
SDP.
[0] = clearmode (default)
[1] = X-CCD
[IgnoreRemoteSDPMKI]
Determines whether the device ignores the Master Key Identifier
(MKI) if present in the SDP received from the remote side.
[0] Disable (default)
[1] Enable
[TrunkStatusReportingMod
e]
Determines whether the device responds to SIP OPTIONS if all the
trunks pertaining to Trunk Group #1 are down or busy.
[0] Disable (default)
[1] Enable = If all the trunks pertaining to Trunk Group #1 are
down or busy, the device does not respond to received SIP
OPTIONS.
Web: Comfort Noise
Enables negotiation and usage of Comfort Noise (CN).