servertransport

  1. Yealink T58 UDP/TCP + Video

    Hello, We use the Yealink T58 for video calls from the door control, I can add and provision the phone with 3CX, but it will only make outgoing calls if the setting Settings>Video>Video Active is set to 'OPTIONAL' or setting the SIP transport protocol to TCP. How do I change BOTH settings in...