Grandstream Networks GXV-3000 user manual Grandstream Networks, Inc

GXV-3000 User Manual Grandstream Networks, Inc.

Callee Request Timer

Force Timer

UAC Specify

Refresher

UAS Specify

Refresher

Force INVITE

Enable 100rel

Account Ring Tone

Send Anonymous

Auto Answer

Preferred Vocoder

Preferred Video

Coder

If selecting “Yes” the phone will use session timer when it receives inbound calls with session timer request.

If selecting “Yes” the phone will use session timer even if the remote party does not support this feature. Selecting “No” will allow the phone to enable session timer only when the remote party support this feature.

To turn off Session Timer, select “No” for Caller Request Timer, Callee Request Timer, and Force Timer.

As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or proxy server as the refresher.

As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to use the phone as the refresher.

Session Timer can be refreshed using INVITE method or UPDATE method. Select “Yes” to use INVITE method to refresh the session timer.

The use of the PRACK (Provisional Acknowledgment) method enables reliability to be offered to SIP provisional responses (1xx series). This is very important if PSTN internetworking is to be supported. A user’s wish to use reliable provisional responses is invoked by the 100rel tag which is appended to the value of the required header of initial signalling messages.

There are 4 different ring tone that are defined:

•System Ring Tone: when selected, all calls will ring with system ring tone.

•Customer Ring Tone 1 to 3: when selected, GXV-3000 will ONLY play this ring tone for all the incoming calls for this account.

If this parameter is set to “Yes”, the “From” header in outgoing INVITE message will be set to anonymous, essentially blocking the Caller ID from displaying.

When set to “Yes”, GXV-3000 will automatically switch to speaker when there is an incoming call.

The GXV-3000 supports up to 5 different Vocoder types including G.711 A- /U-law, GSM, G.723.1, G.729A/B.

User can configure Vocoders in a preference list that will be included with the same preference order in SDP message. The first Vocoder in this list can be entered by choosing the appropriate option in “Choice 1”. Similarly, the last Vocoder in this list can be entered by choosing the appropriate option in “Choice 8”.

Currently GXV-3000 supports only H.264 codec.

- 38 -