Allow non-standard caller IDs

Forums

Hey gang, quick question. Is there an easy way to allow a non-standard caller ID to be passed along as normal?

e.g. We have a tenant that gets calls from a number that sends their caller ID as a 5-digit code. They want to receive these calls but Thirdlane is currently rejecting them.

Submitted by volodya on Fri, 08/24/2018 Permalink

Hello Matthew,

Please check if you have Inbound Route with corresponding DID properly configured if you are using MT system. Please also check if you have Dialling permissions in place which might cause this problem. Or just publish call trace from Asterisk's CLI for it so we could know what's going on.

Submitted by matthewmalk248 on Sat, 08/25/2018 Permalink

Hi Volodya, I'm having trouble finding anything in asterisks log when these calls should be coming in, but the orination provider states they are sending the call to my Thirdlane IP and it's getting rejected. Sadly these calls are random and only a few a day so it's hard to catch a packet capture and we can't create a call on demand. The DID gets calls all day long from normal numbers, and the 5-Digit caller id calls definitely don't have an inbound route for them. Dialing permissions are default for the tenant.

Submitted by netriplex on Sat, 08/25/2018 Permalink

Matt,

I would check with your SIP trunk provider. It is possible your SIP trunk provider is blocking these calls rather than the local Asterisk installation. Especially possible if you are not seeing anything in the asterisk logs.

Submitted by volodya on Tue, 08/28/2018 Permalink

Is it possible that carrier sends calls to 5 digit number on your system? It could be the case. Since it is hard to capture such calls on Asterisk CLI, please start tcpdump -i any -n -w /var/log/some_file.pcap port 5060 command on your system for a day. It will capture all SIP traffic (note that port 5060 should be updated in case if you reconfigured Asterisk bind port).

You can then share this file with me so I could review it. Here is my email address in case you will need it: volodya@thirdlane.com.

Submitted by matthewmalk248 on Sun, 09/02/2018 Permalink

Thanks Volodya, (wish these forums alerted us on replies) I'll start a capture and hopefully it won't get to large before we catch a 5-digit caller ID attempt :)