Bypass Quick Key Voice Channel Access

When enabled, the Quick Key feature is disabled (bypassed) for group voice calls, or when the PSU (Portable Subscriber Unit) has reverted to Talkaround (TA) mode following an interruption in communications with the DVRS (see also TA After DVRS No Communication Attempts). Therefore, upon receiving a Voice Channel access grant to a Dispatch Voice channel request, and the PTT button is no longer pressed, the PSU ends the request sequence and returns to the idle state. This features applies for the current DVRS Conventional System.

When disabled, the Quick Key feature is enabled during group voice calls, or when the PSU has reverted to Talkaround (TA) mode following an interruption in communications with the DVRS.

Since, especially in a busy condition, a significant amount of time may pass between the initial PTT button-press that sends a Dispatch Voice request to the FNE and receipt of the Voice Channel access grant that allocates a voice channel to the requesting PSU, the radio-user may decide to de-key the PSU rather than allow the PTT Warning Time to expire. When the Voice Channel access grant is eventually received, the PSU plays a Talk Permit Tone and the Quick Key feature causes the PSU to begin transmitting silent audio for 3 seconds, even though the PTT button is no longer pressed. If the radio-user presses the PTT button before the Quick Key timer expires, the PSU continues transmitting but with an active microphone; otherwise, the PSU stops transmitting.

The Quick Key feature is always enabled for private calls and phone mode.

When the System Type field is set to "DVRS", and

when the radio is model / option capable.

This is an advanced setting which is only available in Expert View (see Codeplug View).