i wound up setting two outbound nat rules.
found it in this thread jsut modified the rules for our vendor which is flowroute.
https://community.freepbx.org/t/pfsense-firewall-settings-for-sipstation/86702
On the Outbound NAT specify a rule for the WAN interface allowing the PBX via UDP out to Destination (SIP trunk IPs) on Destination Port 5060-5061, NAT address = WAN address, NAT PORT = any, STATIC NAT checked
THEN make another rule for Outbound NAT for the WAN interface allowing the PBX via UDP out to Destination = any, Destination Port = any, NAT address = WAN address, NAT PORT = any, STATIC NAT checked