VG 3745 analog line issue

[Camélia]

Hello everyone;

I have an issue with two ports on my cisco VG 3745, in fact the analog lines connected in these ports are instable, that means that the phone user usualy can't use their analog line ( busy tone when they try to call PSTN ).

i notice that when i call on these analog line, the VG port does'nt light up , but if i unplug the line from the VG and put it back and call, the port gets green and the user can use his line.

Any one hhas an idea, about what it could be caused by? 

For more information, don't hesitate to ask.

Thanks for your time.

Regards.

Camélia 

[Carlo Poggiarelli]

Hi Camelia.

Is your VG integrated with CUCM?

If yes, which signalling protocol are you using (MGCP/H323/SIP)

You can also post the output of your running config in order to verify it.

Thanks

Regards

Carlo

[Camélia]

Hello Carlo;

Yes my VG is integrated in a network containing the CUCM ( both are connected to one core switch ) the signaling protocole is H.225 while my VG is a cisco 3745 H.323.

the config of the port in problem is :

voice-port 1/0/1

 supervisory disconnect dualtone mid-call

 supervisory custom-cptone

 input gain 6

 output attenuation -4

 cptone FR

 timeouts initial 0

 timeouts interdigit 4

 timeouts call-disconnect 0

 timeouts ringing 5

 timeouts wait-release 5

 connection plar opx 1000

 impedance complex2

 description Manager

 caller-id enable

!

thanks.

Regards.