Cisco 2851 should be sending 200ms of all 1's to acknowledge the completion of an incoming call on a T1 CAS circuit, but is only sending 0's.
2851XM, 12.4(9)T7, VWIC2-2MFT-T1 card
(1) 24-channel T1 CAS circuit, E&M wink-start
Callmanager 5.1 publisher and subscriber
Incoming calls drop at exactly two minutes, because the provider does not see the answer supervisor signal. Call actually completes, DTMF digits can be collected, voice conversation can be carried on, but the calling party phone doesn't see that the call is completed.
*May 5 22:51:22.666: em_offhook (0)vnm_dsp_set_sig_state:[recEive and transMit0/0/0:1(1)] set signal state = 0x8em_onhook (201)vnm_dsp_set_sig_state:[recEive and transMit0/0/0:1(1)] set signal state = 0x0
Have you found a resolution to this problem. I am having similar issues with CAS T1 with E&M wink start. Looks like the answer supervision is not working correctly.
I am having this issue with few specific numbers where Serice provider does not see the answer supervisor signal. These are only for incomming calls where the call comes, and the router gets the address information and rings the internal ip phone, but when the phone goes off hook, the originator is still getting the ring back.
It looks like the originator is waiting for answer supervision signal, but its not getting it. So originator gets the ring back for ever.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.