C.E.S. Model SDI-50 Manual, General Description
an incoming call. Dial the phone number of the line connected to the
CES Model SDI-50. The interconnect will answer on the programmed ring
and return a quick double "beep" tone to the phone line. The caller
shouid enter the Dial-Up Remote Code followed by a "#" tone and
proceed as a normal dispatch call. Anything said into the phone will
be transmitted to the mobiles, and all mobile traffic will be passed
to the caller. If the channel is busy at the time the caller enters
the Dial-Up Remote Code, the interconnect will return three long tones
and disconnect. After communications are complete, the call may be
terminated with the global disconnect code from the mobile or the
phone line.
Example: To initiate a Dial-up Remote call using Dial-Up Remote
Code "8421"; dial the interconnect phone number. When the
interconnect answers, dial "8421^". At this time the
interconnect will key the transmitter and transmit any audio
present on the phone line. There will be no tone to the caller
to indícate that the unit is transmitting. The caller should
remember that on simplex systems there will be a delay of up to
1 second (or the length of time of the programmed Sample Rate)
before the mobile can capture the interconnect, and talk after
the person on the phone finishes speaking.
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