Account/Codec Settings - Grandstream Networks GXV3350 Administration Manual

Enable
Allows the phone system to use the session timer, when set to "Yes", it will be added in the SIP INVITE
Session
message to notify the server.
Timer
Configures the phone system's SIP session timer. It enables SIP sessions to be periodically "refreshed" via a
SIP request (UPDATE, or re-INVITE). If there is no refresh via an UPDATE or re-INVITE message, the session
Session
will be terminated once the session interval expires. Session Expiration is the time (in seconds) where the
Expiration
session is considered timed out, provided no successful session refresh transaction occurs beforehand.
(s)
The default setting is 180. The valid range is from 90 to 64800.
Determines the minimum session expiration timer (in seconds) if the phone act as a timer refresher.
Min-SE (s)
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
UAC
remote party does not support Refresher feature, the phone system will refresh the active session.
Specify
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
Refresher
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",
UAS
the remote party will refresh the active session. If it is set to "UAS" and the remote party does not support
Specify
refresh feature, the phone system will refresh it.
Refresher
The default setting is "UAC".
Caller Sets the caller party to act as refresher by force. If set to "Yes" and both party support session timers, the
Request phone will enable the session timer feature when it makes outbound calls. The SIP INVITE will include the
Timer content "refresher=uac". The default setting is "No".
Callee Sets the callee party to act as refresher by force. If set to "Yes" and the both parties support session timers,
Request the phone will enable the session timer feature when it receives inbound calls. The SIP 200 OK will include
Timer 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.
Force
Timer
If 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".
Sets the SIP message type for refresh the session. If it is set to "Yes", the Session Timer will be refreshed by
Force
using the SIP INVITE message. Otherwise, the phone system will use the SIP UPDATE or SIP OPTIONS
INVITE
message. Default is "No".

Account/Codec Settings

Preferred Audio Codec
Table 9: Account/SIP Settings
Preferred Audio Codec
Lists the available and enabled Audio codecs for this account. Users can enable the specific audio codecs by
moving them to the selected box and set them with a priority order from top to bottom.