- Grandstream SIP Enterprise Phone User's Manual GXP 2000

Force INVITE
Session Timer can be refreshed using INVITE method or UPDATE method.
Select “Yes” to use INVITE method to refresh the session timer.
PRACK (Provisional Acknowledgment) method enables reliability to SIP
provisional responses (1xx series). This is required to support PSTN inter-
networking..
Enable 100rel
There are 4 uniquely defined ring tones:
• One (1) System Ring Tone: when selected, all calls
Account Ring Tone
will ring with system
ring tone.
• Three (3) Customer Ring Tones: when selected, incoming calls from
designated account will play selected ring tone.
Send Anonymo
If this parameter is set to “Yes”, the “From” header in outgoing INVITE message
us
will be set to anonymous, essentially blocking the Caller ID from displaying.
Default is No. If set to “Yes”, GXP-2000 will automatically switch on speaker to
Auto Answer
answer the incoming call. Set to Intercom/Paging mode, it will answer the call
based on the SIP info header from the server.
The GXP-2000 supports up to 5 different Vocoder types including G.711(a/µ)
Preferred Vocoder
(also known as PCMU/PCMA), GSM, G.723.1, G.729A/B.
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 option in “Choice 1”. Similarly, enter the last Vocoder in this list by
choosing the appropriate option in “Choice 8”.
Jitter Delay
Select desired Jitter Buffer Delay. Default is Medium. Grandstream recommends
“High” for a poor network environment.
Default is Standard. Choose the selection to meet special requirements from Soft
Switch vendo
Special Feature
rs.
Grandstream Networks, Inc. GXP-2000 Users Manual Page 25 of 33
Firmware 1.1.1.14 Last Updated: 12/2006