Ericsson EDACS MDX, Operator'S Manual

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CALL RECEIVED If programmed, a single alert tone sounds when a
group call is received and a two tone alert (one high
followed by one low tone) is sounded for an indi-
vidual call.
CALL DISABLED
ALERT You will hear a continuous low pitched tone when
your radio is set to an Rx (decode) only
group/channel and you press PTT on the micro-
phone. This tone indicates that you are not allowed
to place a call on this setting.
CARRIER CONTROL
TIMER The Carrier Control Timer alert is a low pitched
tone you will hear whenever you have kept the
PTT button continuously pressed for a pre-pro-
grammed length of time. Four warning beeps pre-
ceed the tone and transmitter shutdown. The
transmitter shuts down when the steady low
pitched tone starts, interrupting communications.
To maintain communications, release and re-key
the microphone. This resets the timer and turns the
transmitter back on. The CCT is a built in precau-
tion against extended use of the system.
EDACS ALERT TONE SETS
There are two EDACS alert tone sets: single and continuous. The EDACS
MDX radio can be programmed to use either set.
Single Alert Tones
CALL QUEUED If one short, high pitched tone sounds after the
transmitter is keyed, it indicates the system has
placed the request in a queue. This tone sounds at
both the transmitting and receiving end that a call
is forthcoming. If the PTT is unkeyed while in the
queue, the radio will automatically key push-to-
talk when a channel becomes available (see
AUTOKEY).
SYSTEM BUSY If you key the PTT bar and hear three short, me-
dium pitched tones, it indicates that the receiving
party is already on the system or the system is busy
and its queue is full. You must re-key later to access
the system.
CALL DENIED A single low pitch beep will sound when the PTT
switch is keyed and the request is denied by the
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