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I work for a telecom company that allows me to peer my Asterisk box to their system for free. Pretty neat. I have everything working except that I can't get inbound VoIP calls using the DID number that my company assigned for me. Today, I finally discovered the source of the problem: For various reasons (according to the technical person who figured this out for me), the company's gear

I had a working 2-way SIP connection running until about 2 days ago, now my outbound calls are promptly blocked with a "403 Forbidden" error. Inbound still functions OK. Perhaps they are fingerprinting and blocking Asterisk access (I hope not). They do not answer their support mail, or questions on their own forum. I'm sure there are other Asteriskers out there who have