Hi b.winter, Thanks for that.I have now used the bind command on the dial peers as below and it works well. I need the NAT as this ISR4331 is also a router for PC's on the internal network among other things. I will change the default routes and see ...

Hi Everyone,Thank you for your replies.The issue with my config is that if I bind the source interface to GigabitEthernet0/0/0.2 I can receive incoming calls with audio but not make outbound calls.If I bind all to GigabitEthernet 0/0/1 I can make out...

Hi Georg, Thank you for your quick reply. I discovered that my NAT was not configured properly in that I had "ip nat outside" configured on the wrong interface. After adding "ip nat outside" to interface GigabitEhternet0/0/0 in the config it started ...

Hi, I also have this issue. Did you manage to resolve this? Can you please share. Thank you.

Hi,Did you ever find a solution to this problem as I also have the same issue. Thanks.