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MM101332V1, Rev. K
3. A telephone ring will be heard from the speaker. When someone answers the phone, press the PTT
button and speak into the microphone. Release the PTT button to listen to the callee. Unsuccessful
interconnect signaling returns the radio to the normal receive mode and the number remains displayed
until the special call is cleared or the time-out expires or another group or system is selected.
Terminate a call by pressing the CLEAR/MONITOR button.
In half-duplex mode, only one person may talk at a time. The radio PTT button needs
to be pressed in order to communicate to the individual called and released for the
individual called to be heard.
11.5.2.2 Direct Dialing of Phone Calls (System Model Only)
1. If the phone number is not stored in the pre-stored list of phone numbers, but the phone number is
known, it can be entered directly from the keypad. Start by pressing the
, then enter the required
number from the keypad.
The last number directly entered can be recalled by first pressing then pressing the
PTT button.
2. A telephone ring can be heard from the speaker. When someone answers the phone, press the PTT
button and speak into the microphone. Release the PTT button to listen to the individual called.
Unsuccessful interconnect signaling returns the radio to the normal receive mode and the number
remains displayed until the special call is cleared or the time-out expires or another group or system is
selected.
3. To terminate the call, momentarily press the CLEAR/MONITOR button.
11.5.3 Dual-Tone Multi-Frequency: Overdial/Conventional Mode
Once the radio has established a connection to the public telephone system, it may be necessary to “over-
dial” more digits to access banking services, answering machines, credit card calls, or other types of
systems that require Dual-Tone Multi-Frequency (DTMF) access digits.
Overdial operation can also be used to initiate a telephone interconnect call via DTMF signalling if a dial
tone has already been accessed on the system. This method makes a telephone interconnect call while
operating in the conventional mode but will also function in trunked mode if a dial tone is directly
accessible.
Telephone numbers and other number sequences for overdialing can be stored in the phone list when
programming the radio. These numbers are accessed by pressing
, then following the selection mode
rules. The following steps are required to dial these numbers:
SCAN MODEL
1. Follow the procedure in Section 11.5.2 to establish a connection to the telephone system or consult
the system administrator for the procedure to access a dial tone on the trunked or conventional
system.
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