Grandstream Networks GXP-2020 Force Invite, Enable 100rel, Account Ring Tone, Send Anonymous

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	PRACK (Provisional Acknowledgment) method enables reliability to SIP
	provisional responses (1xx series). This is required to support PSTN inter-
	networking..
	There are 4 uniquely defined ring tones:
Account Ring Tone
	• One (1) System Ring Tone: when selected, all calls will ring with system
	ring tone.
	• Three (3) Customer Ring Tones: when selected, incoming calls from
	designated 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.
	Default is No. If set to “Yes”, GXP-2020 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.
Preferred Vocoder	The GXP-2020 supports up to 5 different Vocoder types including G.711(a/µ)
	(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	Jitter Buffer Delay is pre-configured and can not be changed.
Special Feature	Default is Standard. Choose the selection to meet special requirements from Soft
	Switch vendors.

SAVING THE CONFIGURATION CHANGES

After the user makes a change to the configuration, press the “Update” button in the Configuration Menu. The LCD will then display the following screen to confirm saved changes.

Grandstream recommends to power cycle the IP phone after saving changes.

REBOOTING THE PHONE REMOTELY

Press the “Reboot” button at the bottom of the configuration menu to reboot the phone remotely. The LCD will then display the following screen to confirm reboot is underway.

Wait 30 seconds to log-in again.

Grandstream Networks, Inc.	GXP–2020 Users Manual	Page 30 of 33
	Firmware 1.1.4.3	Last Updated: 05/2007