ZETRON 748, Техническое руководство

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Operation
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“interconnect not available at this time” voice prompt (prompt #8) is sent to the telephone, and the
call request is terminated. The caller has twice the programmed
DTMF interdigit time to enter the
first overdial digit. After the first digit, the specified DTMF interdigit time is the maximum time
allowed between digits. If no digits are over-dialed, and an Autocall user has been programmed for
that line, the Model 748 will automatically call that user (radio). If not enough digits are dialed, the
Model 748 will error the caller off and disconnect the call.
Telephone to Mobile Calls
The caller first gains access to the Model 748 (see the previous subsection, “Call Setup (Telco)”). A
valid user number or ANI has been entered, the Model 748 has keyed the transmitter, sent any
required selective calling sequence (paging tones) and is now sending ringing tones both to the
mobile and the telephone caller. The mobile must answer the call as specified by
Answer type for
that user (radio) before the Mobile answer time expires or the call will be disconnected. The Model
748 will ring on the channel, and to the telephone for the specified Ringouts sent to mobile . If the
mobile does not answer, the “your call cannot be processed at this time” voice prompt (prompt #4) is
sent to the telco and the call is disconnected. Once the mobile has answered, the conversation timer
has been initialized with
Call limit time for that user (radio). If enabled, the mobile activity timer has
been initialized. Each time the mobile keys up, the Mobile activity time is used to reset the timer. If
at any time the mobile activity timer expires, the call is disconnected. Single warning beeps are sent
every three seconds starting 12 seconds before the mobile activity timer expires. The conversation
timer may not be reset since this controls the length of the call. Double warning beeps are sent every
three seconds starting 15 seconds before the call is disconnected. To terminate the call, the calling
(phone) party enters “#0” or a long “#”, or the mobile must enter its
Disconnect ANI .
Telephone-to-Talkback Mobile Calls
The caller first gains access to the Model 748 (see “Call Setup (Telco)” earlier in this section). A
valid user number or ANI has been entered, the Model 748 has keyed the transmitter, any required
selective calling sequence (paging tones) will now be sent, the caller will hear one ring while the
paging tones are being sent. The Model 748 will then send the “speak your message at the prompt”
voice prompt (prompt #6) followed by a “go ahead” prompt to the caller. Once the prompt is heard,
the audio path between the phone line and the transmitter is opened and caller's voice is transmitted
over the radio channel. The Talkback mobile must answer as specified by
Answer type for that user
(radio), within the specified Mobile answer time . If the mobile does not answer, the “your call
cannot be processed at this time” voice prompt (prompt #4) is sent to the telco and the call is
disconnected. Once the mobile answers, the remainder of the call proceeds exactly the same as
equipment type “Mobile”.
Application note:
If a selective calling sequence is not required (no paging tones programmed), a single ring on the
channel will be sent instead.