CTI mode not conencting with remote phones

[Ben Beige]

I've got a few devices that are setup to work remotely with one of my client's systems. The phone is online, as is the user w/ the 3cx client (they are on their corporate vpn) the phones are also VPN connected to their existing voice network (yealink t23g phones).

This was working properly about 2 weeks ago then suddenly stopped, or at least that is what my end users are telling me.

 

[Markus Schröder]

i would check the VPN-Configuration. For security reasons, the traffic between VPN clients is often prevented so that the client-servers, but not the client-client connections, work.