Abstract: A push-to-talk headset can include one or more user-actuatable switches, user-actuatable adjustment devices or the like that are electrically coupled to a pulse generator circuit. Responsive to detected state transitions of the one or more user-actuatable switches, user-actuatable adjustment devices or the like, a number of signals comprising a number of pulses may be communicated to a portable electronic device communicably coupled to the push-to-talk headset. At least a first of these signals having a first number of pulses may be used to place the portable electronic device in a push-to-talk mode. At least a second of these signals having a second number of pulses may be used by the operating system to remove the portable electronic device from the push-to-talk mode.

Abstract: An adaptor that includes a male connector, a control circuit, and a wireless transceiver coupleable to a corresponding female connector on a portable electronic device provides push-to-talk functionality on the portable electronic device. In conjunction with the device operating system, the adaptor converts a first incoming signal to a first number of low impedance/high impedance pulses detectable by the portable electronic device to initiate a push-to-talk session. During the push-to-talk session, the adaptor transceiver wirelessly transmits and receives communication signals (e.g., audio signals) to and from an accessory device communicably coupled to the adapter. In conjunction with the device operating system, the adaptor converts a second incoming signal to a second number of low impedance/high impedance pulses detectable by the portable electronic device to terminate the push-to-talk session.

Abstract: An adaptor that includes a male connector, a control circuit, and a wireless transceiver coupleable to a corresponding female connector on a portable electronic device provides push-to-talk functionality on the portable electronic device. In conjunction with the device operating system, the adaptor converts a first incoming signal to a first number of low impedance/high impedance pulses detectable by the portable electronic device to initiate a push-to-talk session. During the push-to-talk session, the adaptor transceiver wirelessly transmits and receives communication signals (e.g., audio signals) to and from an accessory device communicably coupled to the adapter. In conjunction with the device operating system, the adaptor converts a second incoming signal to a second number of low impedance/high impedance pulses detectable by the portable electronic device to terminate the push-to-talk session.

Abstract: A push-to-talk headset can include one or more user-actuatable switches, user-actuatable adjustment devices or the like that are electrically coupled to a pulse generator circuit. Responsive to detected state transitions of the one or more user-actuatable switches, user-actuatable adjustment devices or the like, a number of signals comprising a number of pulses may be communicated to a portable electronic device communicably coupled to the push-to-talk headset. At least a first of these signals having a first number of pulses may be used to place the portable electronic device in a push-to-talk mode. At least a second of these signals having a second number of pulses may be used by the operating system to remove the portable electronic device from the push-to-talk mode.