3cx 15.5 sp5

  1. 3CX Windows App CTI not working on some extensions since Update

    Our 3CX server was updated to 15.5 SP5 3 weeks ago. We have just discovered that *SOME* (not all) extensions will not function with CTI. Note that the firmware on the phone is the most recent revision (Yealink T46G 28.81.0.110). It seems that any extensions (IE: Extension #1) created prior to...