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Grandstream GXW4008 VoIP Gateway Setup

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  1. Plug the grandstream in your lan with the LAN port, type the web default address: http://192.168.2.1 into your web browser. You should see the following login screen:

    Grandstream GXW4008 VoIP Gateway Setup

  2. Type in the default password admin and press Login. The configuration page should appear.
  3. On Basic Settings Set YES on the NAT/DHCP section WAN side access option.

    Grandstream GXW4008 VoIP Gateway Setup

  4. Select dynamically assigned via DHCP from the items below:

    Grandstream GXW4008 VoIP Gateway Setup

  5. Set in Advance settings Admin Password to a personal value. This value will change the default admin that was used to access the phone menu in Step 1 above. This is not a mandatory step but we do recommend that you change the password.
  6. On Profile 1 set SIP Server equal to voiptalk.org and Outbound proxy equal to nat.voiptalk.org:5065.

    Grandstream GXW4008 VoIP Gateway Setup

  7. ON FXS ports Set SIP User ID and Authenticate ID equal to your VoIPtalk User ID, Authenticate Password equal to your VoIPtalk password, and Profile equal to Profile 1 as shown below.

    Grandstream GXW4008 VoIP Gateway Setup

  8. Set on Profile 1 your IP Phone number equal to your VoIPtalk ID.

    Grandstream GXW4008 VoIP Gateway Setup

  9. Configure your SIP Registration settings as shown below:

    Grandstream GXW4008 VoIP Gateway Setup

  10. If you are using the outbound proxy as specified in Step 5 please ensure you disable STUN NAT Traversal as displayed below. Note: You should not configure STUN if you have a public fixed IP address for your IP Phone.

    Grandstream GXW4008 VoIP Gateway Setup

  11. On Profile 1 set DTMF info to be transported via RTP (RFC2833) as shown below:

    Grandstream GXW4008 VoIP Gateway Setup

  12. Click UPDATE at the bottom of the configuration page then click to view your changes and then click the REBOOT on the phone menu screen. Make sure you click UPDATE before clicking REBOOT to make sure your changes are implemented correctly.
  13. Upon rebooting, your phone should have connected to the VoIPtalk service. To test this dial 902.


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