SIP-T19P Cannot Dial out

[Flora_Yealink]

Hi
You mean when you pick the handset and try to make outgoing call , the phone will automatically dial out when you only input 3 digits while the digit of the correct number is 4 , so the phone can't dial out the number normally?
in this case, would you please check whether you have configured these three numbers in the dial plan ?
you can check Settings->Dial Plan
How many phones have the issue ? did the issue happen all the time or it can work well before but fail to work suddenly?

would you please share us the config.bin file and pcap trace that we can check ? you can send them to support@yealink.com.

Best Regards!