3Com VCX v7111 User Manual page 66

Parameter
Enable Early Media
[ EnableEarlyMedia ]
Session-Expires Time
[SIPSessionExpires]
Minimum Session-Expires
[MINSE]
Session Expires Method
[SessionExpiresMethod]
Asserted Identity Mode
[AssertedIdMode]
66
Description
Disable [0] = Early Media is disabled (default).
Enable [1] = Enable Early Media.
If enabled, the gateway sends 183 Session Progress response with
SDP (instead of 180 Ringing), allowing the media stream to be set up
prior to the answering of the call.
Note that to send 183 response you must also set the parameter
ProgressIndicator2IP to 1. If it is equal to 0, 180 Ringing response is
sent.
Generally, this parameter is set to 1.
Determines the timeout (in seconds) for keeping a re-INVITE
message alive within a SIP session. The SIP session is refreshed
each time this timer expires. This SIP method used for session-timer
updates is determined according to the SessionExpiresMethod
parameter. The default is 0 (not activated).
Defines the time (in seconds) that is used in the Min-SE header. This
header defines the minimum time that the user agent supports for
session refresh.
The valid range is 10 to 100000. The default value is 90.
Defines the SIP method used for session-timer updates.
Re-INVITE [0] = Use Re-INVITE messages for
updates (default)
.
UPDATE [1] = Use UPDATE messages.
The gateway can receive session-timer refreshes using both
methods.
The UPDATE message used for session-timer purposes is
not included in the SDP body.
Disable [0] = None (default).
Adding PAsserted Identity [1] .
Adding PPreferred Identity [2] .
The Asserted ID mode defines the header that is used in the
generated INVITE request. The header also depends on the calling
Privacy: allowed or restricted.
The P-asserted (or P-preferred) headers are used to present the
originating party's Caller ID. The Caller ID is composed of a Calling
Number and (optionally) a Calling Name.
P-asserted (or P-preferred) headers are used together with the
Privacy header. If Caller ID is restricted, the Privacy: id is included.
Otherwise for allowed Caller ID the Privacy: none is used. If Caller ID
is restricted (received from Tel or configured in the gateway), the
From header is set to <anonymous@anonymous.invalid>.
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session-timer
VCX V7111 VoIP Gateway User Guide