Is there any simple dial code or method to temporarily disable and later re-enable voice mail on  12 Call, either to the simple call back service or preferably no action at all when the phone is called without answer.  Or is it required to call the service center?

 

Thank you.

Can you describe in detail what it is you want to do, exactly?

 

Do you want callers to go to voicemail? Or do you want them to receive a Thai message about the call not being completed?

 

Often the SIM has programmed the phone to divert calls (busy, no answer, no service).

 

So check your Settings, Call, Divert where you will likely see cal divert to +66 819 0099. If you do not want to divert calls to VM then change the settings, and/or remove the number. You may have to restart the phone.

 

You may also be able to cancel the service with *141SEND, then press 2, then press 1 (I think).

 

To resubscribe enter *141SEND

 

You may also be able to manage this service via their mobile or web-based app.

 

2 hours ago, mtls2005 said:

Can you describe in detail what it is you want to do, exactly?

 

Do you want callers to go to voicemail? Or do you want them to receive a Thai message about the call not being completed?

 

Often the SIM has programmed the phone to divert calls (busy, no answer, no service).

 

So check your Settings, Call, Divert where you will likely see cal divert to +66 819 0099. If you do not want to divert calls to VM then change the settings, and/or remove the number. You may have to restart the phone.

 

You may also be able to cancel the service with *141SEND, then press 2, then press 1 (I think).

 

To resubscribe enter *141SEND

 

You may also be able to manage this service via their mobile or web-based app.

 

In detail I do not want any calls to be sent to voice mail, either when the phone is on silent or when it is turned off.