Firewall/NAT

I have a soft phone that I am testing and it works fine over our LAN and in other office over a private network. When I try to connect the soft phone from through the internet it does not work. Right now I have a rule setup to allow all traffic from my IP address to destination of the LAN ip address for testing until i get it working.

WAN
Proto * | Source 209.60.x.x | Port * | Destiniation 172.16.x.x | Port *

When I run a wireshark on the computer with the softphone across the LAN I can see the traffic going to the phone system (172.16.x.x) and the phone system talking back. When I run the soft phone from an external connection (209.60.x.x) and use the Internet IP address (WAN address on M0n0wall) to connect I see the traffic going to the external IP address from the softphone but no traffic returning. Like it is not getting a responce, any ideas?

A little more information that I have dug up.

This is from the last 50 filter log entries:
Oct  7 00:09:27 wil-firewall ipmon[130]: 00:09:26.683887 sis0 @0:29 b 209.60.x.x,2021 -> 172.16.x.x,5060 PR tcp len 20 48 -S IN NAT

And here is the rule that is blocking from ipfstat -nio:
@29 block in log quick on sis0 all head 200

and here is the ipnat -lv:
rdr sis0 0.0.0.0/0 port 5060 -> 172.16.x.x port 5060 tcp/udp

I have 1 gateway voip grandstream 4fxo, it in the red lan, how can comunicate it with  my elastix inside of my green lan,
i can use static routes for it?



thanks and regards