I know he said that. Maybe the SIP servers are configured to listen on all those ports that are listed. I think Xponder has confirmed that it works with the port setting in the domain field. But I don't think you have to set it. 5060 is the default and it works fine.
Regarding the port setting, I think the original issue was there might be a port conflict on your side. e.g. PAP2T uses 5061 and 5062. To avoid conflicting with those ports and making your router's job easy, Tim was asking you to pick a different port.
Here is something that will "may be" make it easier to understand.. Each NAT mapping has the following fields (each field is IPaddress/port combination)
Inside local -> Inside Global -> Outside Global -> Outside local
At each step, address and port field could be different. If there is no port conflict then "Inside local" port and "Inside Global" port will most probably be same and SIP messages don't have to be modified. Tim was talking about the ports on the "Outside Global" and "Manually specify ports" field sets the ports on the "Inside local" side.
Bookmarks