How to trace a call that is not in the log?

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maniac_by2019-10-21 13:39:04

linux

maniac_by, 2019-10-21 13:39:04

Hello. Today there was trouble.
Strange calls started coming to one specific phone number from unknown and unregistered numbers in the PBX, for example 11101. Nothing about such calls remains in the logs. There are no new devices.
How can this be tracked?

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2 answer(s)

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Ronald McDonald, 2019-10-21
@maniac_by

Okay, "doesn't."
Do you have FreePBX?
Most likely, these are scripts going through possible numbers in order to crack them.
Do not pay attention, if the passwords are strong, then nothing terrible will happen.

D

Drill, 2019-10-21
@Drill

To increase the information content of the console, for example:
To increase the information content of the logs, in the asterisk.conf file, in the [options] section, set the value of the verbose parameter from 0 to 9. The default is 0.
To display in the logs who sends packets, enable debug:
if the call comes to one particular peer, it is better to enable debug only for that peer:
Be careful, the logs grow very quickly.
Or use utilities like tcpdump. The best way to dump SIP packets is to use sngrep