Incoming calls not working

General Help
1

Hello,

We are having trouble with incoming calls not coming through… We are using Twilio SIP (using pjsip driver) trunks with TLS. Outbound calls work perfectly, but every time I try to make an inbound call (from an external number) all I get is a busy signal.

I setup the NAT rule in our firewall to the FreePBX server and I confirmed that the traffic on port 5061 is being allowed. Also when I run a tcpdump on the FreePBX server it appears that there is traffic coming into the server when I make an inbound call, but I still just get a busy signal. I also tried completely disabling the firewall within FreePBX to see if that would make a difference, but it did not.

I do have the inbound route setup to my extension (softphone)… What am I missing here to get the inbound calling to work?

Thanks in advance!

2

One thing I found is that if I disable TLS then both inbound/outbound calls work fine.

That tells me that there’s something wrong with the Twilio guide to enabling TLS (page 12). Does anyone know what’s missing?

3

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