SIP T31P problem

[complex1]

(03-05-2024 04:53 AM)mike@mynis.net Wrote:  Yes, I do hear a dial tone... It 'sounds', when I'm called, as if the phone is muted.
I discovered when I push the upper white button on the right side of the display TWICE, then I hear sound, and they can hear me.

Of course, this shouldn't be the case.

There is no white button on the right side of the display.
There are two 2-color LED indicators (red/green).
If the indicator lights up green, this means that the account is correctly set up and working.
If the indicator remains off (white button?) then there is something wrong with registering the telephone with the telephone provider.
I suggest checking all settings carefully.