Incoming calls not working with Asterisk 1.4.9

Background:
AsteriskNOW is set up on a server. The entire network (including phones) is connected to the firewall and then to a Bell router. The entire system was working flawlessly with an old number, but incoming calls stopped working when the main number was ported over to a new number.
Situation:
Outgoing calls are normal and working. Internal extension-to-extension calls work fine. Incoming calls are not connecting to Asterisk. The ISP says that Asterisk is returning a 404 error.

I'll post config files and CLI output if necessary.
alexatsearidgeAsked:
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alexatsearidgeConnect With a Mentor Author Commented:
The situation seems to have resolved itself. The "full log" file is missing. Thanks for everyone's help.
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jfaubiontxCommented:
Sounds like you need to update the inbound routes. The system probably had a route specifically for the old number and no default route.
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feptiasCommented:
Can you capture a SIP trace for an inbound call and post it back here. To enable SIP logging at the CLI, use the command:
sip set debug

To switch it off again, the command is
sip set debug off

You probably need to configure an inbound route or DID that matches the incoming number. However, to see the exact format being used by the new provider, it would be simplest to capture the SIP packets and inspect them.
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alexatsearidgeAuthor Commented:
This just in:
It works now, but I didn't touch anything. It just magically works. It's happened before where it randomly starts working again and then stops working.

Any ideas?
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jfaubiontxCommented:
Maybe the provider wasn't sending the right number of digits. You might look back through the /var/log/asterisk/full log file to see what the provider was sending before and after the calls started working.
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alexatsearidgeAuthor Commented:
Problem is no longer relevant. No solution provided. Case closed.
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