analog line issue FXO

[eyadgharaibah]

i'm facing disconnected issue with analog lines , sometimes its working fine someday issue coming back

voice-port 0/1/2
 trunk-group Zero
 supervisory disconnect dualtone mid-call
 supervisory custom-cptone Cust_Tone
 no vad
 cptone BE
 timeouts interdigit 5
 timeouts call-disconnect 1
 timeouts wait-release 1
 timing guard-out 300
 connection plar opx immediate 7100
 impedance complex2
 description "8596518"
 caller-id enable
 caller-id alerting line-reversal
 caller-id alerting dsp-pre-allocate

IOS version : Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.2(4)M6a, RELEASE SOFTWARE (fc1) 

[Terry Cheema]

What exactly you mean by disconnect? Calls get dropped or anything else? The more information you provide the better chances you have to get a response.

-Terry

[eyadgharaibah]

i'm facing Drop calls 

[kkoeper12]

Incoming or outgoing calls? Only on one port or all ports? Only from 1 phone or all phones? Always at the same time or does the time vary when the call is dropped? Does it always happen or is it intermittent?

Can you post a debug of a dropped call?

[eyadgharaibah]

outgoing and incoming , some phones , some times ,intermittent

[anuj.wadhwa]

I am also facing similar issue, calls are going thru but no voice some times, its intermittent. incoming on Hard Phone is always fine but outgoing not working. Outgoing worked once and on softphone incoming works but no audio at both end.

Here's voice port config::

voice-port 1/0/10
 trunk-group 1
 supervisory disconnect dualtone mid-call
 input gain 6
 no vad
 cptone ID
 timeouts interdigit 4
 timeouts call-disconnect 5
 timeouts wait-release 5
 connection plar opx 6410
 caller-id enable
!