CoreNexa Desktop App: Download and First Use

  1. Start by going to https://voice.nxtgensol.net and entering your username and password. Your username and password are the same for the web, mobile, and desktop apps.
  2. Once logged in to the web, click on the menu in the bottom left-hand corner of the screen called “Apps”


  1. Under the label “Other Applications” in the fly out menu click Desktop Download.
  1. In the new window that opens click the “Download for Windows” button. Note that if you are using Mac or Linux to select the button that is appropriate for your system.


  • Depending on your web browser you may get a pop up notifying you that the file could harm your device. This is a security feature of your browser that warns about any application that it does not recognize. It is ok to click keep.


  1. After the download has completed, run the file.
    • Windows UAC (User Account Control) may appear. If it does, click yes and continue with the installation.
  2. During the setup process leave all default options checked, accept the license agreement, and continue to select next.
  3. At the end of the installation, it will give you the option to “Run CoreNexa”. Leave this option checked and click finish
  4. When the app opens for the first time it will ask for a username and password. This is the same username and password you used previously to sign into the website.
  5. Once signed in the desktop app should appear similar to the image below.

Grandstream GRP2612: Add Contacts

To add a contact on a Grandstream GRP2612 phone, you can follow these steps:

  1. Press the “Menu” button on your phone.
  2. Use the arrow keys to navigate to the “Directory” option and press “Select”.
  3. Choose “Add Contact” and press “Select” again.
  4. Enter the name and phone number of the contact using the keypad on your phone.
  5. Press “Save” to save the contact.

You should now be able to find the contact in your phone’s directory and call them directly by selecting their name from the list.