Version 6.2 395 February 2011
SIP User's Manual 10. Configuration Parameters Reference
Parameter Description
EMS: Use URL In Refer To
Header
[UseAORInReferToHeade
r]
Defines the source for the SIP URI set in the Refer-To header of
outgoing REFER messages.
[0] = Use SIP URI from Contact header of the initial call (default).
[1] = Use SIP URI from To/From header of the initial call.
Web: Enable User-
Information Usage
[EnableUserInfoUsage]
Enables or disables the usage of the User Information, which is loaded
to the device in the User Information auxiliary file. (For a description on
User Information, see ''Loading Auxiliary Files'' on page 170.)
[0] Disable (default).
[1] Enable
[HandleReasonHeader]
Determines whether the device uses the value of the incoming SIP
Reason header for Release Reason mapping.
[0] Disregard Reason header in incoming SIP messages.
[1] Use the Reason header value for Release Reason mapping
(default).
[EnableSilenceSuppInSD
P]
Determines the device's behavior upon receipt of SIP Re-INVITE
messages that include the SDP's 'silencesupp:off' attribute.
[0] = Disregard the 'silecesupp' attribute (default).
[1] = Handle incoming Re-INVITE messages that include the
'silencesupp:off' attribute in the SDP as a request to switch to the
Voice-Band-Data (VBD) mode. In addition, the device includes the
attribute 'a=silencesupp:off' in its SDP offer.
Note: This parameter is applicable only if the G.711 coder is used.
[EnableRport]
Enables or disables the usage of the 'rport' parameter in the Via header.
[0] = Enabled.
[1] = Disabled (default).
The device adds an 'rport' parameter to the Via header of each outgoing
SIP message. The first Proxy that receives this message sets the 'rport'
value of the response to the actual port from where the request was
received. This method is used, for example, to enable the device to
identify its port mapping outside a NAT.
If the Via header doesn't include the 'rport' parameter, the destination
port of the response is obtained from the host part of the Via header.
If the Via header includes the 'rport' parameter without a port value, the
destination port of the response is the source port of the incoming
request.
If the Via header includes 'rport' with a port value (e.g., rport=1001), the
destination port of the response is the port indicated in the 'rport'
parmeter.
EMS: X Channel Header
[XChannelHeader]
Determines whether the SIP X-Channel header is added to SIP
messages for providing information on the physical channel on which
the call is received or placed.
[0] Disable = X-Channel header is not used (default).
[1] Enable = X-Channel header is generated by the device and sent
in INVITE messages and 180, 183, and 200 OK SIP responses. The
header includes the channel, and the device's IP address.
For example, 'x-channel: DS/DS1-1/8;IP=192.168.13.1', where:
9 'DS/DS-1' is a constant string
9 '1' is a constant string
9 '8' is the channel (port)
9 'IP=192.168.13.1' is the device's IP address
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