SIP From Internet?

I have an Aterisk box behind my firewall and would like to connect remote phones to it across the Internet.

  1. Is this a good idea?
  2. What ports need to be forwarded for this to work properly?


You have to judge whether this is a good idea. Technically it can be done. There are plenty of documents and examples both in this forum and Basically look for bindport in sip.conf/iax.conf, and port range in rtp.conf.

try to refer