cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
2,590 Views
Message 1 of 9

Bt synergy cordless phone

Go to solution

Why is a C showing on the phone screen and there is terrible interference on the line 

0 Ratings
8 REPLIES 8
2,585 Views
Message 2 of 9

Re: Bt synergy cordless phone

Go to solution

@JenniferMelvin45 

Who provides your phone service?

0 Ratings
2,572 Views
Message 3 of 9

Re: Bt synergy cordless phone

Go to solution

Bt is the provider,  problem happened after a power cut which last only a second 

0 Ratings
2,570 Views
Message 4 of 9

Re: Bt synergy cordless phone

Go to solution

@JenniferMelvin45 wrote:

Bt is the provider,  problem happened after a power cut which last only a second 


Remove the power to the base unit for about a minute, and that should clear the problem which can be caused by a short power loss.

0 Ratings
2,562 Views
Message 5 of 9

Re: Bt synergy cordless phone

Go to solution

Sorry but no luck the phone  is still displaying C  have checked batteries they are ok

0 Ratings
2,558 Views
Message 6 of 9

Re: Bt synergy cordless phone

Go to solution

@JenniferMelvin45 wrote:

Sorry but no luck the phone  is still displaying C  have checked batteries they are ok


Has the noise gone away? You may also have to check the date and time is correct.

0 Ratings
2,550 Views
Message 7 of 9

Re: Bt synergy cordless phone

Go to solution

Hi @JenniferMelvin45   Looking at the user guide it is not C-0 flashing? This means that the date and time needs to be set on the answering machine.

0 Ratings
2,542 Views
Message 8 of 9

Re: Bt synergy cordless phone

Go to solution

Wow not sure how but it appears to be ok, suddenly it made a strange noise from the base unit and cleared itself, thank you for your help very grateful 

0 Ratings
2,535 Views
Message 9 of 9

Re: Bt synergy cordless phone

Go to solution

@JenniferMelvin45 wrote:

Wow not sure how but it appears to be ok, suddenly it made a strange noise from the base unit and cleared itself, thank you for your help very grateful 


A short mains interruption can disrupt the internal software communications. I am pleased its now working.

0 Ratings