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Grandstream DP720

The Grandstream DP720 is a cordless IP phone for business users. The DP720 is a lightweight device packed with useful features for a business environment. The DP720 works with its base station, the DP750. Each base station can handle up to 5 handsets and 10 Users.

In this article, you’ll learn how to configure a Grandstream DP720 to use with your Telzio service.

Before you get started, here are some important notes:

  • You’ll need to create a User on your Telzio account to configure with your phone.
    Learn about creating Users.
  • If you’ve previously used the phone with a different provider, you should do a factory reset on the phone first.
  • You can order preconfigured phones from our shop that arrive ready for calling.
  • Telzio can only provide limited support on phones that are not purchased directly from our shop.

Follow these steps to configure your phone with Telzio:

Log into the phone’s web interface

  1. Connect the base station to your internet and power up the handset. Within a few minutes, they should automatically find each other and pair up.
  2. On the handset, navigate to:
    Menu – Settings – Status
  3. Scroll down to IP Address.
  4. Type the IP address into your web browser to find the phone’s configuration page.
    i.e. 192.168.0.5
  5. Log in with the following default credentials:
    Username: admin
    Password: admin

Configure the handset profile

  1. From the top menu, navigate to: Profiles – Profile 1 – Network Settings
  2. Set NAT Traversal to NO.
    If you ever experience issues with receiving calls, try setting the NAT Traversal setting to STUN.
  3. Click Save and Apply.

Configure the DECT settings

  1. From the top menu, navigate to: DECT – SIP Account Settings.
  2. Under Account 1, enter the following settings:
    SIP Server sip.telzio.com
    SIP User ID Enter your username
    Authenticate User ID Enter your username again
    Password Enter your password
    Name Enter your name
    Profile Profile 1
    HS Mode HS1
    Active Yes
  3. Click Save and Apply.
  4. From the top menu, navigate to: DECT – Handset Line Settings.
  5. Under Line 1, select your username next to each handset.
  6. Click Save and Apply.