20 Most Recent Grandstream GXP-2000 IP Phone Questions & Answers


From the Granstream User Manual (Page 44):
Restore Factory Default Setting
WARNING: Restoring the Factory Default Setting will delete all configuration information of the phone.
Please backup or print all the settings before you restoring factory default settings. Grandstream is not
responsible for restoring lost parameters and cannot connect your device to your VoIP service provider.
INSTRUCTIONS FOR RESTORATION:
Step 1: Press "OK" button to bring up the keypad configuration menu, select "Config", press "OK" to
enter submenu, select "Factory Reset" (Please refer to Table 5-1 of keypad flow chart)
Step 2: Enter the MAC address printed on the bottom of the sticker. Please use the following mapping:
0-9: 0-9
A: 22 (press the "2" key twice, "A" will show on the LCD)
B: 222
C: 2222
D: 33 (press the "3" key twice, "D" will show on the LCD)
E: 333
F: 3333
Example: if the MAC address is 000b8200e395, it should be key in as "0002228200333
395".
NOTE: If there are digits like "22" in the MAC, you need to type "2" then press "->" right arrow key to
move the cursor or wait for 4 seconds to continue to key in another "2".
Step 3: Press the "OK" button to move the cursor to "OK". Press "OK" button again to confirm. If the
MAC address is correct, the phone will reboot. Otherwise, it will exit to previous keypad menu interface.

https://www.grandstream.com/products/gxp_series/general/documents/gxp_usermanual_english.pdf

Grandstream... | Answered on Apr 08, 2014


To set Unconditional Call Forward ON Dial "*72" for a dial tone. Dial the forwarding number followed by "#". Wait for dial tone. LCD will display "Call FWD Activated"
To Cancel Unconditional Call Forward: dial "*73" and get the dial tone, then hang up. LCD will display "Call FWD Activated

but, since you have tried those two, it could be that there might still be a different type of call forward option that is still ON, on your phone like Busy Call Forward and Delayed Call Forward 1. To Cancel Busy Call Forward: dial "*91". Wait for dial tone. Hang up.
2.To Cancel Delayed Call Forward: Dial "*93" for a dial tone, then hang up.

Let me provide you a link to the website which I used as a reference for your future reference.
http://www.grandstream.com/user_manuals/GXP_User_Manual.pdf

Grandstream... | Answered on Apr 27, 2011


If both phones are showing the same symptoms then it probably means that your DHCP server is down or not configured properly. If the phones are on a separate VLAN and you have recently upgraded or replaced your network switch then it could be misconfigured as well - specifically it may require you to configure a DHCP helper address.

Grandstream... | Answered on Jan 09, 2010


The exact method really depends on your ip-pbx and whether or not you will have a persistent VPN between the remote site and the main site.

If you have the VPN then the most you would have to do different would likely be to manually set the ip settings for the phone.

If not, then you will likely be dealing with a pretty complex implementation that will require in depth work with the PBX, firewall, DNS, and possibly security certificates.

Some IP-PBX units do decent job of shielding you from the gory details but without more info to go on, i.e. details on the PBX type and whether or not you will be using a VPN, this is about as far as we can go at the moment.

If you need more, please post a follow up with additional information and we'll be glad to continue.

Grandstream... | Answered on Oct 04, 2009


Here is a step by step that is very good:

http://grandstream.com/support/gxp_series/general/documents/gxp_interop_3cx.pdf

If you have any more specific questions, please let me know in a follow up. I just set up a 3CX system with these phones last month and it's pretty fresh in my mind.

Good luck!

Grandstream... | Answered on Aug 28, 2009


DEVICE BURNT OR NO FIRMWARE

Grandstream... | Answered on May 26, 2009


Unplug the phone for 10 mint.... 
and also try restoring it to factory settings.....

Grandstream... | Answered on Mar 25, 2009


Go to internet
Type your the ip phone address
type admin as password if you never changed it
That's it

Grandstream... | Answered on Nov 16, 2008


Replace your power cable.

Dawit

Grandstream... | Answered on Nov 16, 2008

Tip

My ip phone is always hanging


i have a problem with my ip phone,i have configured it and is working fine just that it's hanging anytime and im always oblige to reboot it otherwise no one can call me after,first i was thinking that the ip phone was having a physical problem but i have about 20 and all of them are behaving the same way after the configuration.could help me,aniway if it's not a physical problem it must be coming from a bad configuration

on May 09, 2008 | Grandstream GXP-2000 IP Phone


if you have a password reset disk use that.otherwise
you must use the password recovery software

Grandstream... | Answered on Feb 16, 2008


Step 1:

Press "OK" button to bring up the keypad configuration menu, select "Config", press "OK" to

enter

submenu, select "Factory Reset"

Step 2:

Enter

the MAC address printed on the bottom of the sticker.

Please use the following mapping:

A: 22 (press the "2" key twice, "A" will show on the LCD)

B: 222

C: 2222

D: 33 (press the "3" key twice, "D" will show on the LCD)

E: 333

F: 3333

Example:

if the MAC address is 000b8200e395, it should be key in as "0002228200333395".

NOTE:

If there are digits like "22" in the MAC, you need to type "2" then press " >" right arrow key to

move the cursor or wait for 4 seconds to continue to key in another "2".

Step 3:

Press the "OK" button to move the cursor to "OK".

Press "OK" button again to confirm. If the

MAC address is correct, the phone will reboot. Otherwise, it will exit to previous keypad menu interface.

Grandstream... | Answered on May 14, 2015

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