Depending on your Grandstream model and firmware version, your Grandstream interface may look different than the screenshots included below. The steps, however, are the same.
- In the Dashboard, click on Users
- Click on Devices for the user you wish to add the Grandstream phone
- Click on New Device
- Select Soft Phone
- The Dash system will automatically create your credentials. You may adjust the device name to your liking.
- Record your SIP Username, SIP Password, and Realm – you will need these shortly. To display your SIP Password simply click on the text box to reveal it.
- Click on Save Changes
- Login to your Grandstream phone’s interface using username and password “admin” – you may need to refer to your phone’s manual if you have forgotten how to access this interface.
- Under Account(s) > General Settings, enter the following information:
- Account Active: Set to Yes
- SIP Server: (enter the Realm you were given in the Dash interface)
- SIP UserID: (enter the SIP Username you were given in the Dash interface)
- SIP Authentication ID: (enter the SIP Username you were given in the Dash interface)
- SIP Authentication Password: (enter the SIP Password you were given in the Dash interface)
- Click on Save
- Next, go to Maintenance > Upgrade and Provisioning and enter the following information:
- Upgrade Via – Set to “HTTP”
- Firmware Server Path – leave blank
- Config Server Path – p3.zswitch.net (no http://)
- Make sure that 3CX Auto Provision is set to No
- Click Save and Apply at bottom of page.
- Click Provision at top of page to have phone provision; will reboot multiple times before completing