Grandstream Networks GRP261 Series Administration Manual page 30

Min-SE
Caller Request Timer
Callee Request Timer
Force Timer
UAC Specify Refresher
UAS Specify Refresher
Force INVITE
Account x �� Codec Settings
Audio
Preferred Vocoder
(Choice 1 – 8)
Codec Negotiation Priority
Use First Matching Vocoder in 200OK
SDP
Hide Vocoder
Configures to enable or disable
multiple m lines in SDP
iLBC Frame Size
iLBC Payload Type
The minimum session expiration (in seconds). The default value is 90
seconds. The valid range is from 90 to 64800.
If set to "Yes" and the remote party supports session timers, the phone will
use a session timer when it makes outbound calls. The default setting is "No".
If set to "Yes" and the remote party supports session timers, the phone will
use a session timer when it receives inbound calls. The default session is
"No".
If Force Timer is set to "Yes", the phone will use the session timer even if the
remote party does not support this feature. If Force Timer 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".
As a Caller, select UAC to use the phone as the refresher; or select UAS to use
the Callee or proxy server as the refresher. The default setting is "UAC".
As a Callee, select UAC to use caller or proxy server as the refresher; or select
UAS to use the phone as the refresher. The default setting is "UAC".
The Session Timer can be refreshed using the INVITE method or the UPDATE
method. Select "Yes" to use the INVITE method to refresh the session timer.
The default setting is "No".
Multiple vocoder types are supported on the phone, the vocoders in the list is
a higher preference. Users can configure vocoders in a preference list that is
included with the same preference order in SDP message.
Configures the phone to use which codec sequence to negotiate as the callee.
When set to "Caller", the phone negotiates by SDP codec sequence from
received SIP Invite. When set to "Callee", the phone negotiates by audio codec
sequence on the phone.
The default setting is "Callee".
When it is set to "Yes", the device will use the first matching vocoder in the
received 200OK SDP as the codec.
The default setting is "No".
When option Hide Vocoder is set as Yes, the coded will be hidden from call
screen as bellow
The default setting is "No".
If enabled, the phone always responds one m line in SDP regardless multiple
m lines are offered.
This option determines the iLBC packet frame size. Users can choose from
20ms and 30ms.
The default setting is "30ms".
This option is used to specify iLBC payload type. Valid range is 96 to 127.
The default setting is "97".