Hold a call with a feature access code when using a simple phone without call control capability.
Flash Call Hold allows you to dial a feature access code to hold and retrieve calls. To hold the call, flash the phone (click the flash button or click the hangup button once) then dial the Flash Call Hold feature access code. You can then make another call while the first call is held. Subsequent flashes followed by the Flash Call Hold feature access code cause the active and held calls to toggle. That is the active call becomes held and the held call active.