Minute use is calculated for the entire duration of your call, including the time it forwards to the outside number until the time you hang up that call.
With call forwarding, there is no handoff of the call once we connect it to your forwarding number. We maintain control of the call for its duration so any minutes used are subtracted from your plan's minutes. Minutes are also used for outgoing calls using our dialer feature.
Voicemail messages left by callers also count as minutes used and are capped at 5 minutes in length.