I need help!
SIP uses UDP 5060 port for signaling. Afther that evry connection uses only one UDP port for comunication. If I have five open SIP connections my Asterisk will use five diferent UDP ports. Do I have it right so far?
Now can I define which port Asterisk shuld use with SIP? At least a range of ports?
I’m asking all this because I don’t know which ports do I have to open on my firewall. Do I have to open any TCP port?
Thank you for your time.