[Asterisk-Users] Ports to open behind a NAT

[Jeff R Glassman]

I am planning to have our ISP (RR Business) open up the necessary ports so
our Asterisk box which is behind a firewall can communicate with Sip phones
outside the firewall.

>From searching the list archive I have come up with the following list

22 for SSH	Should this be TCP, UDP or Both?
5060		TCP Only
10000 -20000 UDP Only

Is this info correct or is there other ports or port type  corrections
above?

Jeff