Grandstream Networks Grandstream GXV-3000 User Manual download pdf (Page 29)

Grandstream Networks, Inc. GXV-3000 User Manual Page 27 of 46

Firmware 1.0.1.7 Updated: 06/2007

Session Expiration

The SIP Session Timer extension enables SIP sessions to be periodically “refreshed” via a

SIP request (UPDATE, or re-INVITE. Once the session interval expires, if there is no re-

fresh via a UPDATE or re-INVITE message, the session is terminated.

Session Expiration is the time (in seconds) at which the session is considered timed out,

provided no successful session refresh transaction occurs beforehand. The default value is

180 seconds.

Min-SE

The minimum session expiration (in seconds). The default value is 90 seconds.

Caller Request Timer

If set to “Yes”, the phone will use session timer when it makes outbound calls if remote

party supports session timer.

Callee Request Timer

If selecting “Yes”, the phone will use session timer when it receives inbound calls with ses-

sion timer request.

Force Timer

If set to “Yes”, the phone will use session timer even if the remote party does not support

this feature. If set to “No”, the phone enables the session timer only when the remote party

supports this feature. To turn off Session Timer, select “No” for Caller Request Timer,

Callee Request Timer, and Force Timer.

UAC Specify Refresher

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

proxy server as the refresher.

UAS Specify Refresher

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

phone as the refresher.

Force INVITE

Session Timer can be refreshed using INVITE method or UPDATE method. Select “Yes” to

use INVITE method to refresh the session timer.

Enable 100rel

The use of the PRACK (Provisional Acknowledgment) method enables reliability to be of-

fered to SIP provisional responses (1xx series). This is very important in order to support

PSTN internetworking. To invoke a reliable provisional response, the 100rel tag is ap-

pended to the value of the required header of initial signaling messages.

Account Ring Tone There are 4 uniquely defined ring tones:

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

• 3 Customer Ring Tones: when selected, incoming calls from this account will play

selected ring tone.

Send Anonymous

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.

Anonymous Call Rejection

Default is NO. If set to YES, anonymous call will be rejected

Refer-To Uses Target Con-

tact

Default is NO. If set to YES, then for Attended Transfer, the “Refer-To” header uses the

transferred target’s Contact header information.

Auto Answer Default is No. If set to “Yes”, GXV-3000 will automatically switch on speaker to answer the

incoming call after a short reminding beep. Set to Intercom/Paging mode, it will answer the

call based on the SIP info header from the server.

Preferred Vocoder

The GXV-3000 supports up to 6 different Vocoder types including G.711 A-/U-law (nick-

name as PCMU/PCMA), GSM, G.723.1, G.729A/B and G.726-32.

User can configure Vocoders in a preference list that is included with the same preference

order in SDP message. Enter the first Vocoder in this list by choosing the appropriate op-

tion in “Choice 1”. Similarly, enter the last Vocoder in this list by choosing the appropriate

option in “Choice 8”.

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Grandstream Networks Grandstream GXV-3000 User Manual Page 29

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