Hi, We have just upgraded from 3CX v12.5 to v15.5 and all is mostly good. I have a wee problem with Snom 300 phones however. We were using firmware v220.127.116.11 and the upgrade has introduced v18.104.22.168. In the old firmware the Mute key (BLF4) toggled functionality between DND and Mute depending whether the phone was active. It also toggled the adjacent LED on or off. I have edited the provisioning template in v15.5 to enable Mute but it doesn't toggle the LED. Does anyone know how to do that? Also, in v12.5 users were alerted to voicemail messages by the word VMAIL on the 2nd line of the phone's display. They could then press the tick button to connect them to the voicemail system. In v15.5 all they get is Info and a flashing "Message" LED and there doesn't seem to be a quick way for people to connect to voicemail. Am I missing something?