The length of time a wireless device may be engaged in transmission (phone conversations, sending or receiving data) before it runs out of battery power. Talk time, expressed in hours and minutes, is [..]

This is the total time that a battery can power a phone for making and receiving mobile calls. As use of a mobile phone drains the battery during a call, the amount of talk time left in the battery de [..]

The length of time you can talk on your portable or transportable cellular phone without recharging the battery. The battery capacity of a cellular portable or transportable is usual [..]

The length of time you can transmit calls on your mobile device before needing to recharge the battery. The battery capacity of a device is usually expressed in terms of minutes of talk time or hours of standby time.

Talk time is the officially quoted longest time that a single battery charge will last when you are constantly talking on the phone. The talk time is highly dependent on the cellular network environme [..]

The time during which a wireless telephone is on and actively transmitting or receiving a call.

is the amount of time that a battery can power a mobile phone for calls before it needs recharging.

This is the same as Air time and refers to the actual amount of time spent talking on the phone, or in some cases the allowance of time available on your talk plan.