Release Notes for D26 6.3.17.2 (the same as D28 2.3.17.2 and D22 7.3.17.2) 1.Hangup tone can be configured via Web management "Phone -> Features -> BusyToneDelay".The default is set to be 0s. 2.The prompt tone for Voice Message can be configured via "Phone -> Tones -> Stutter".Make "Select country" as "Custom" and then fill in the blank of "Stutter" as "0" which will turn the voice off.In a CFG file,it is: [ Country ] path=/yealink/config/voip/tone.ini Country = Custom [ Tone Param ] path=/yealink/config/voip/tone.ini dial = ring = busy = congestion = callwaiting = dialrecall = record = info = stutter = 0 message = autoanswer = [ Default ] path=/yealink/config/voip/tone.ini dial = 1 ring = 1 busy = 1 congestion = 1 callwaiting = 1 dialrecall = 1 record = 1 info = 1 stutter = 1 message = 1 autoanswer = 1 3.Enable dialing out Emergency NO. while the keypad is locked (locked as "talk call only").Specify the emergency NO. via web management "Phone -> Features -> Emergency" 4.two more options on "Check New Config": Power on + Repeatedly Power on + Weekly 5.Add setting options for Expansion Module on web management "Phone -> EXT key"