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Netcomm NB9WMAXXn VoIP Setup Guide

This guide will walk you through setting up the Netcomm NB9WMAXXn modem for using the AdamTalk Voice over Internet Protocol (VoIP) service to make and receive calls.

Configuring the Modem

  1. To start, open an internet browser window (Internet Explorer, Mozilla Firefox, Safari, etc.).

  2. At the top of the browser window is the address bar, this may currently contain a website address such as:

    Delete this address entirely and type in the following number:

    Press Enter on the keyboard.

    Entering modem IP address

  3. A login prompt will be displayed requesting a username and password. This is the modem username and password and is not to be confused with your Adam Internet username and password.

    Enter the username admin and the password admin. Click OK.

    NB9WMAXXn login prompt

  4. Once the browser has logged in, the modem status page will be displayed. This page contains information about the modem and connection such as firmware version and connection speeds.

    On the left hand menu, Click on Voice.

  5. This will load the SIP Configuration page. There are quite a few settings on this page, please enter or check the following settings:
    1. Interface name: ppp_0_8_35_1 - pppoe_0_8_35
    2. Local selection: AUS - Australia
    3. Preferred codec list: G711A, G729, G711U
    4. Preferred ptime: 20
    5. Tick Use SIP Proxy
    6. SIP Proxy:
    7. SIP Proxy Port: 5060
    8. Register Expire Time: 360
    9. SIP Domain Name:
    10. Untick Use SIP Outbound Proxy
    11. Tick LineEnabled 1
    12. Untick LineEnabled 2
    13. Extension: Your VoIP phone number (e.g.08xxxxxxxx)
    14. Display Name: Your VoIP phone number (e.g.08xxxxxxxx)
    15. Authentication Name: Your VoIP phone number (e.g.08xxxxxxxx)
    16. Password: your Adam VoIP password

    Leave all other fields as default. Scroll to the bottom of the page and click Save/Apply.

  6. On the left hand menu, click SIP Advanced Setting
  7. In SIP Advanced Settings, enter the following settings:
    1. Tick Enable SIP tag matching
    2. Dtmf Relay setting: Voice Band
    3. Differentiating PSTN & VoIP Dial Tone: Disable
    4. Emergency Calls: VoIP

    Leave all other fields as default. Scroll to the bottom of the page and click Save/Apply.

  8. The modem will restart and apply the new settings. When it has finished restarting, click on the Basic menu and check that Phone 1 Current Status shows Register to the SIP Proxy Succeed. If this shows correctly, the phone can now be tested.

    The VOIP settings page

    To test the phone, first pick up the handset and check for dial tone. When the handset is picked up, the Phone 1 light on the modem will come on. If there is dial tone, you may now test calling a phone number.

Further Help: If you require further assistance, please contact the Adam Internet Help Desk on (08) 8423 4000 or email with as much detail as possible regarding the issue at hand.