Use a "Currently on another Call" greeting message while on another call or have the capability to disable Call waiting. An options that say, while i'm on another call us this greeting, or while i'm on a call go straight to voicemail.
Would love to see an option to turn off the beeping of an incoming call while you are already on a phone call through the soft phone. You can currently mute the ringing but the beeping continues after you ignore it and its too loud/distracting while on the phone.
However, i see someone requested this feature 4 years ago. Any update or progress on this potentially being added as a feature?