Version 7.2 991 Mediant 1000B Gateway & E-SBC
User's Manual 62. Configuration Parameters Reference
Parameter Description
Minimum Session-Expires
configure voip > sbc settings
> min-session-expires
[MinSE]
Defines the time (in seconds) in the SIP Min-SE header. The header
defines the minimum time that the user agent refreshes the session.
The valid range is 10 to 100,000. The default is 90.
Note: The parameter is applicable only to the Gateway application.
Session Expires Disconnect
Time
[SessionExpiresDisconnectT
ime]
Defines a session expiry timeout. The device disconnects the session
(sends a SIP BYE) if the refresher did not send a refresh request
before one-third (1/3) of the session expires time, or before the time
configured by the parameter (the minimum of the two).
The valid range is 0 to 32 (in seconds). The default is 32.
Session Expires Method
configure voip > gateway
settings > session-exp-
method
[SessionExpiresMethod]
Defines the SIP method used for session-timer updates.
 [0] Re-INVITE = (Default) Uses re-INVITE messages for session-
timer updates.
 [1] UPDATE = Uses UPDATE messages.
Note:
 The parameter is applicable only to the Gateway application.
 The device can receive session-timer refreshes using both
methods.
 The UPDATE message used for session-timer is excluded from the
SDP body.
[RemoveToTagInFailureRes
ponse]
Determines whether the device removes the ‘to’ header tag from final
SIP failure responses to INVITE transactions.
 [0] = (Default) Do not remove tag.
 [1] = Remove tag.
[EnableRTCPAttribute] Enables the use of the 'rtcp' attribute in the outgoing SDP.
 [0] = Disable (default)
 [1] = Enable
Note: The parameter is applicable only to the Gateway application.
[OPTIONSUserPart] Defines the user part value of the Request-URI for outgoing SIP
OPTIONS requests. If no value is configured, the endpoint number
(analog) or configuration parameter ‘Username’ value (digital) is used.
A special value is ‘empty’, indicating that no user part in the Request-
URI (host part only) is used.
The valid range is a 30-character string. By default, this value is not
defined.
Trunk Status Reporting
Mode
configure voip > gw
digitalgw digital-gw-
parameters > trunk-status-
reporting
[TrunkStatusReportingMode
]
Enables the device to not respond to received SIP OPTIONS
messages from, and/or not to send keep-alive messages to, a proxy
server associated with Trunk Group ID 1 if all its member trunks are
down.
 [0] Disable (default) = Device responds to SIP OPTIONS messages
from, and sends keep-
alive messages to, a proxy server associated
with Trunk Group ID 1 if all its member trunks are down.
 [1] Don’t reply OPTIONS = The device does not respond to SIP
OPTIONS received from the proxy associated with Trunk Group 1
when all its trunks are down.
 [2] Don’t send Keep-Alive = The device does not send keep-alive
messages to the proxy associated with Trunk Group 1 when all its
trunks are down.
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