call disconnect problem with pstn line at fxo

[hasan yenilmez]

Hi all,

I have cisco 2911 router and Cumc 9.1

When I called  to Pstn numbers. If Pstn side terminates call. Ip phones doesn't understand call is terminated. and it stucks and gives  like no line    sound.

voice-port 0/3/1

pre-dial-delay 0

cptone TR

timing hookflash-out 50

timing inter-digit 50

connection plar opx 1049

Can you help about this problem? 

Thanks in advance

.

[Nadeem Ahmed]

Can you please confirm whether or not PSTN side is sending disconnect/release message.