AudioCodes Mediant 1000 User Manual page 74

Parameter
Enable Early Media
[EnableEarlyMedia]
183 Message Behavior
[SIP183Behavior]
Session-Expires Time
[SIPSessionExpires]
Minimum Session-
Expires
[MINSE]
Session Expires Method
[SessionExpiresMethod
]
SIP User's Manual
Table 5-8: General Parameters (Protocol Definition)
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.
[0] Disable = Early Media is disabled (default).
[1] Enable = Enables Early Media.
For Analog interface: 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.
For Digital interface: Sending a 183 response depends on the Progress
Indicator. It is sent only if PI = 1 or PI = 8 is received in Proceeding or Alert
PRI messages. For CAS gateways, see the ProgressIndicator2IP
parameter.
Defines the ISDN message that is sent when 183 Session Progress
message is received for IP-to-Tel calls.
Valid options include:
[0] Progress = Progress message (default).
[1] Alert = Alert message.
When set to 1, the gateway sends an Alert message (after the receipt of a
183 response) instead of an ISDN Progress message.
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. The SIP method used for session-timer updates is
determined according to the parameter SessionExpiresMethod.
The valid range is 1 to 86400 sec. The default is 0 (i.e., 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.
Valid options include:
[0] Re-Invite = Use Re-INVITE messages for session-timer updates
(default).
[1] Update = Use UPDATE messages.
Notes:
The gateway can receive session-timer refreshes using both methods.
The UPDATE message used for session-timer purposes is excluded
from the SDP body.
Description
74
Mediant 1000
Document #: LTRT-83302