I will try to explain more about our setup, since this problem continues to bug us.
Network Setup
WAN
PfSense
LAN > VPN > Remote site with IPTelephones (H.323)
The gateway to our remote site has the pfsense as its internal default gateway.
So, all traffic from our remote site passes through the VPN , then to the pfsense and from the pfsense out. I´ve tried to find the iptelephones ipnumers in the state table, but they dont seem to be there.
When we for example changes a static route on our pfsense, the filter reloads and the calls on our phones on the remote site breaks.
The telephone system is Solidus Ecare on a MX-ONE telephone system and really has nothing to do with the pfsense itself, only that the clients on the remote site speaks through the pfsense to our telephony systems.
The clients seem to bee unaffected otherwise when the filter reloads. They maintain communication to all the systems. Only the iptlephones traffic breaks.
Any comments tips or the like is much appreciated.
Best regards