Grandstream Networks GXV-3000 user manual Grandstream Networks, Inc

GXV-3000 User Manual Grandstream Networks, Inc.

Callee Request Timer

Force Timer

UAC Specify Re- fresher

UAS Specify Re- fresher

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 Re- quest 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 reli- ability to be offered to SIP provisional responses (1xx series). This is very im- portant if PSTN internetworking is to be supported. A user’s wish to use reli- able 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 mes- sage will be set to anonymous, essentially blocking the Caller ID from display- ing.

When set to “Yes”, GXV-3000 will automatically switch on speaker to answer the incoming call. Set to Intercom/Paging mode, it will answer the call based on the SIP info header from the server. Default is No.

The GXV-3000 supports up to 5 different Vocoder types including G.711 A- /U-law (nickname as PCMU/PCMA), 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. H.263 is not supported now but will be supported in the future via firmware upgrade.

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