Version 6.6 571 Mediant 2000
User's Manual 45. Configuration Parameters Reference
Parameter Description
[EnableSilenceSuppInS
DP]
Determines the device's behavior upon receipt of SIP Re-INVITE
messages that include the SDP's 'silencesupp:off' attribute.
[0] = (Default) Disregard the 'silecesupp' attribute.
[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 the usage of the 'rport' parameter in the Via header.
[0] = Disabled (default)
[1] = Enabled
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.
Web: Enable X-Channel
Header
EMS: X Channel Header
[XChannelHeader]
Determines whether the SIP X-Channel header is added to SIP
messages for providing information on the physical Trunk/B-channel on
which the call is received or placed.
[0] Disable = (Default) X-Channel header is not used.
[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 Trunk number, B-channel, and the device's IP
address.
For example, 'x-channel: DS/DS1-5/8;IP=192.168.13.1', where:
'DS/DS-1' is a constant string
'5' is the Trunk number
'8' is the B-channel
'IP=192.168.13.1' is the device's IP address
Web/EMS: Progress
Indicator to IP
[ProgressIndicator2IP]
[-1
] Not Configured = for ISDN spans, the progress indicator (PI) that
is received in ISDN Proceeding, Progress, and Alerting messages is
used as described in the options below. (default)
[0] No PI = For IP-to-Tel calls, the device sends 180 Ringing SIP
response to IP after receiving ISDN Alerting or (for CAS) after
placing a call to PBX/PSTN.
[1] PI =1, [8] PI =8: For IP-to-Tel calls, if the parameter
EnableEarlyMedia is set to 1, the device sends 180 Ringing with
SDP in response to an ISDN Alerting or it sends a 183 Session
Progress message with SDP in response to only the first received
ISDN Proceeding or Progress message after a call is placed to
PBX/PSTN over the trunk.
Note: This parameter can also be configured per IP Profile (using the
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