What ports/protocols do I need to forward from my public IP to the Cisco SIP box (SPA 122) to get it to work? I'm using netfilter. If I remember correctly, it was something like UDP 10000-10100 and UDP 5060.
Also, can I expect the incoming packets to only be from sip.teksavvy.com or can they be from anywhere? I'd like to filter that too.
TIA.
↧