Tandberg c20 VC unit cannot call out
Hi, does anyone have a VC unit using H323 that I can try a direct call to? (as in not through a gatekeeper)
We have dusted off our Tandberg (now Cisco) c20 unit due to someone actually finding a good use for it.
The unit is on Codec 6.0 and has been set up with NAT on our firewall to route through from the Global IP to the Local IP in both directions with no port blocking.
Our colleague can dial in successfully from his polycom system, but we can't dial out to him. We can ping his global IP from the VC unit so it is getting out ok.
We are dialling H323alias@global_ip. (Tandbergs use @ as apposed to ## on the polycom)
So if anyone is able to let us attempt a call to them, this will allow us to narrow down if the issue is at our end, or that of our colleague's.