Frequently Asked Questions (FAQs):How do I configure my Grandsteam GXP2000?

VoIP: How do I configure my Grandsteam GXP2000?

  1. Plug your Grandstream GXP2000 into the LAN and obtain the phone's IP Address as follows:
    -You will see the IP address of the phone across the bottom of the LCD display.
    -Make a note of this IP address.
  2. Open a Browser and enter type this address: http://IP_address ( using the IP address from step 1) you should see the login screen: [Grandstream GXP 2000 Login screen]
    Type in the default password admin and press Login (if you have already changed the default password, use the new password).
    You should now be presented with the Advanced Settings Screen.
  3. Set:- Admin Password to a personal value. This is important if the phone is on a public IP range. [Admin password]
  4. If you have more than one GXP2000 phones on the same network you will need to set the local RTP port setting to a unique number for each of the phones. The default for this setting is 5004. [RTP Port settings]
  5. The next setp is to setup the SIP accounts. Select ACCOUNT 1 and then enter the following details:
    • Account active: Yes
    • Account name: Free Virtual Numbers
    • SIP server: (Set the SIP Server to the registration server name you will have been advised to use in your welcome email. This will look like sip.freevirtualnumbers.co.uk:5060 or lon-pbx-X.freevirtualnumbers.co.uk:5060)
    • Outbound Proxy (Set the Outbound Proxy as you will have been advised to use in your welcome email. This will look like nat.freevirtualnumbers.co.uk:5082)
    • SIP User ID (Set this to your VoIP extension - usually 8 digits)
    • Authenticate ID (Set this to your VoIP extension - usually 8 digits)
    • Authenticate password (Set this to your VoIP extension password as specified in your confirmation email)
    • Name (Enter your name as you wish it to appear on phones)
  6. Set Use DNS SRV to NO
    Set User ID is phone number to NO
    Set SIP Registration to YES
    Set Unregister On Reboot to NO
    Set NAT Traversal (STUN) to YES
    Set SUBSCRIBE for MWI to NO
  7. Set Send DTMF to via RTP (RC2833) - this is necessary to make sure your phone uses the correct tones when sending key presses to the called party.
  8. If you intend to use multiple Grandstream adaptors/telephones behind a Nat Firewall you will need to give each adaptor/Phone a unique SIP Port.
    [SIP Port settings]
    For example if you had two Grandstream adaptors/telephones the the first would be assigned port 5060 and the second 5061.
  9. Finally you will need to set the Audio Codecs order that the phone uses. We recomend you set your phone as follows. [Preferred Vocder settings]
    • Preferred Vocoder choice 1: PCMA
    • Preferred Vocoder choice 2: PCMU
    • Preferred Vocoder choice 3: G.729A/B
    • Preferred Vocoder choice 4: G.723.1
  10. Click UPDATE at the bottom of the configuration page.Click REBOOT. Make sure you click UPDATE before REBOOT to make sure your changes are implemented correctly.
  11. Your Grandsteam Adaptor should now be ready to use! Dial 160 to try the echo test. You should hear everything you say echoed back to you.