No dialtone or phone doesn’t make outbound calls on your MP54 or MP56 Yealink Teams phone?

 

Solution: reboot phone, can be done a few ways here’s the easiest way:

On touchscreen, touch profile picture on your phone:

 

Click on settings:

 

 

Click on device settings:

 

Press reboot:

Press reboot phone:

 

Phone will reboot and look like below, if you were signed in before, it with automatically sign you back in.