What is the port number for ………?

what do you do when you need to know a port number for a protocol that needs to be allowed through a firewall? This is a pretty neat command

phone#show ip port-map skinny
Default mapping:  skinny        tcp port 2000                       system defined

Another example

phone#show ip port-map ssh
Default mapping:  ssh       tcp port 22                         system defined
Default mapping:  ssh       udp port 22                        system defined