Inbound callerid showing Anonymous

[erict68]

Hi guys, this is my first post and fist time exploring into Asterisk. I’m currently on version 18.15.0-rc1 which i wanted to test out the uri tel support. But what i encounter here is the inbound callerid showing as anonymous, from the sip trace, i could see the telco sending the callerid by the “contact” header field, is there a way to tackle that field as screen shot below? Thanks in advance.

[david551]

The user part of the Contact header is an opaque value that only means anything to the UAC sending it. It should not be interpreted as a caller ID.

If they are sending Anonymous in the From header, I would suggest that they have a security bug if they are leaking the value in the Contact header.

I would expect you to be able to use PJSIP_HEADER to read the contact header, which you can then parse.

[david551]

It’s possible that the target_uri option, on the CHANNEL function contains the URI you want, but the documentation is a bit terse.

[erict68]

Found the solution:
[fix_for_callerid]
exten => _.,1,Set(CALLERID(num)=${CUT(CUT(PJSIP_HEADER(read,Contact),@,1),:,2)}).
exten => _.,n,Set(CALLERID(name)=${CUT(CUT(PJSIP_HEADER(read,Contact),@,1),:,2)}).
exten => _.,n,Goto(from-pstn,${EXTEN},1)

Thanks David