25PTT IDPTT ID is the transceiver unique ID code which is sent each time the PTT switchis pressed and/or released.Note:◆ PTT ID can be made only in analog operation.SIGNALINGQT/ DQTThe Encoder/Decoder function uses QT/ DQT to segregate talk groups, so usersonly hear calls from their own group.DTMFA DTMF PTT ID is included for dispatch operations or simple remote controlapplications. The DTMF decode capabilities include Selective Call ID, Transpondwith ID, and “Wild Card” Group Calling.2-Tone2-tone Signaling opens the squelch only when your transceiver receives a callcontaining matching 2 tones.5-Tone5-tone Signaling opens the squelch only when the transceiver receives the 5tones programmed in your transceiver. Transceivers that do not transmit thecorrect tones will not be heard.COMPANDERIf programmed by your dealer for a channel, the compander will remove excessivenoise from transmitted signals, to provide higher clarity of signals.Note:◆ The compander is used only in analog operation.VOICE ANNUNCIATIONIf enabled by your dealer, when changing the zone and channel, an audio voicewill announce the new zone and channel number.