Grandstream Networks GAC2500 Administration Manual page 43

Min-SE (s)
UAC Specify Refresher
UAS Specify Refresher
Force INVITE
Caller Request Timer
Callee Request Timer
Force Timer
Enable 100rel
Caller ID Display
Determines the minimum session expiration timer (in seconds) if the
phone act as a timer refresher. The default setting is 90.
The valid range is from 90 to 64800.
Sets which party will refresh the active session if the phone makes
outbound calls. If it is set to "UAC" and the remote party does not support
Refresher feature, the phone system will refresh the active session. If it is
set to "UAS", the remote party will refresh it. If it is set to "Omit", the header
will be omitted so that it can be selected by the negotiation mechanism.
The default setting is "Omit".
Specifies which party will refresh the active session if the phone receives
inbound calls. If it is set to "UAC", the remote party will refresh the active
session. If it is set to "UAS" and the remote party does not support refresh
feature, the phone system will refresh it. The default setting is "UAC".
Sets the SIP message type for refresh the session. If it is set to "Yes", the
Session Timer will be refreshed by using the SIP INVITE message.
Otherwise, the phone system will use the SIP UPDATE or SIP OPTIONS
message. Default is "No".
Sets the caller party to act as refresher by force. If set to "Yes" and both
party support session timers, the phone will enable the session timer
feature when it makes outbound calls. The SIP INVITE will include the
content "refresher=uac". The default setting is "No"
Sets the callee party to act as refresher by force. If set to "Yes" and the
both parties support session timers, the phone will enable the session
timer feature when it receives inbound calls. The SIP 200 OK will include
the content "refresher=uas". The default setting is "No".
Configures the session timer feature on the phone system by force. If it is
set to "Yes", the phone will use the session timer even if the remote party
does not support this feature. If it is set to "No", the phone will enable the
session timer only when the remote party supports this feature. To turn off
the session timer, select "No". The default setting is "No".
Activates PRACK (Provisional Acknowledgment) method. PRACK
improves the network reliability by adding an acknowledgement system to
the provisional Responses (1xx). It is set to "Yes", the phone system will
response to the 1xx response from the remote party. Default is "No".
Specifies which header tag will be used from the SIP INVITE message for
the Caller ID display. If it is set to Auto, the phone system will use the one
of the available headers in the priority hierarchy of P-Asserted Identify
Header, Remote-Party-ID Header and FROM Header. If it is set to "From
Header", it will use the FROM header information for the Caller ID. If it is
set to "Disabled", all the incoming calls Caller ID will be displayed with
GAC2500 Administration Guide
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