The following configuration guide will be help with configuring these phones with sipgate basic:
Aastra 6730i, 6731i, 6739i, 6751i, 6753i, 6755i, 6757i
Follow the instructions in your phone's manual to access your Aastra's Web Configuration menus.
To configure your Aastra you'll need your SIPID and SIP Password.
Under Advanced Settings, select an available Line and enter your sipgate sipgate SIP Credentials:
Next open the Global SIP page --> Advanced SIP Settings:
To test your configuration please see this Help Article:
If you run into issues registering your phone online, with placing calls, or with audio quality the following Help Articles offer useful troubleshooting advice: