calls drop

[Anatoly Fedchik]

Hello,

could you help me,

i have the following configuration:

cme_B(2801) - <h323> - cme_HQ(2801) <- h323 -> AVAYA S8300

The problem - very often phone talks has been suddenly disconnected. - disconnect cause -10.

----

sh call history voice

dissconnect cause 10.

What maybe the cause of the problem?

Thank you in advance

[paolo bevilacqua]

Disconnect between what ?

HQ - B ?

HQ - PBX ?

B - PBX ?

Any of the above ?

have you taken any trace ?

Nobody can help you with the information you did (not) gave.

[Anatoly Fedchik]

The disconnecting between analog phones connected to FXS port B and phones on Avaya. I didnt do any traces.

[Pratik Jhaveri]

Anatoly,

Is the call even getting establised? If no, then enable 'debug h225 asn1' and capture the output.

If the call drops after answering, enable both 'debug h225 asn1' and 'debug h245 asn1'

Is there any specific event that you are performing that is causing the drop? Like transfer etc?

[Anatoly Fedchik]

I'll try to clarify my question. Call is droped while conversation, between phones connected to fxs ports CME_b and analog phones connected to Avaya. Yes, the call drops after answering but not immediately. I can talk forewhile sometimes without any problem.  It's randomly dropped sometimes maybe in 5 sec, sometimes in 2 minutes, sometimes never.

[Anatoly Fedchik]

It seems to me I localized the problem: fxs port or analog port on PBX is the problem.  How can i test fxs port?

[paolo bevilacqua]

You need to take the trace that have been correctly indicated to you before.

For the FXS port, you can take "debug vpm signal".

[Pratik Jhaveri]

Run 'debug vpm signal' and H323 debugs at the same time. This way you can identify on which side is sending disconnect signal

There could be some issues with your FXS ports as well. When the call gets disconnected, quickly issue 'sh voice port summ' and ensure that the status of the port is as expected.

There can be many possibility that could cause disconnect on FXS side - Cabling, DSP, incorrect voltage etc. Your best bet would be to start from the debugs.