Random Call Disconnect

The customer is complaining of randomly dropped calls. All calls are randomly disconnect, extension to extension, outbound dialed calls, and incoming calls.
Pastebin logs are attached for experts.
I am using FreePBX 15.0.17 with asterisk 16.0

Internal Call Disconnect logs … Internal Call Disconnection - FreePBX Pastebin

Outside Calls Disconnect Logs … External Call Disconnection - FreePBX Pastebin

I am new with freepbx, Any help you could provide would be much appreciated.

You should be using chan_pjsip, as chan_sip is no longer effectively supported.

Both logs indicate that the outgoing leg ended first, but give no indication of why, which probably means that the called party cleared the call. With chan_sip, you would need to run the CLI command “sip set debug on”, to get more useful information.

Thanks for Reply
When i enable sip set debug, there is lots of logs appear and the disconnection problem is happening randomly So I can’t figure out how to trace where the problem is.

Have the customer give you the extension number, remote party number and time of the disconnect.
Find the call in the CDRs to know when it started. Search the Asterisk log, starting shortly before the call started, for the called number, etc. Paste from there through the end of the call and post the link.

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