Motorola GM950 Manuale d'uso - Pagina 7

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DTMF

DTMF means Dual Tone Multi Frequency and is

used when the radio is required to operate in a

radio system with an interface to public or private

telephone systems (PSTN or PABX).

To enter the DTMF mode, press DTMF function

button (13e), the General Display will show the

DTMF icon

. Your radio may be programmed to

automatically send an access code which connects

you to the telephone system. You will hear the

access code, after which you will hear the dialling

tone. Dial the required number directly from the

keypad.

If your system does not have an automatic access

code, on entering the DTMF mode dial the required

number directly from the keypad.

When the number is completed a ringing or busy

tone is heard and the conversation is handled as

described in "Communication Procedure".

To disconnect from the telephone system, either

press the DTMF button or manually dial a speciﬁed

disconnect number, depending on your system

conﬁguration.

To exit the DTMF mode, press the Clear button for

longer than 2 seconds.

Option Button Functions

The following functions may be applicable to your

radio, activated by one of the function/option

buttons.

Call Buttons - When a Call button (Base Call /

Variable Call) is pressed, a speciﬁed sequence

of tones is transmitted to set up your call.

Repeater Talkaround

the transmit frequency on a channel to be

switched to the same as the channel's receive

frequency. This will allow a radio to

communicate directly with another without the

need to use a repeater.

Call Forward

- This feature allows you to

pass on calls automatically to another radio,

which may be your portable radio when you are

away from your vehicle.

Monitor

- One option button (usually 5) may be

programmed as Monitor. This feature allows the

user to switch between different receiver settings

programmed as Receive, Monitor 1 and Monitor 2.

Scan

- The scan feature will cause the radio

to search through predeﬁned lists of channels

looking for a condition that will cause the radio to

unmute. While searching for unmute conditions,

the radio is in 'active scan' (green LED ﬂashing

and Scan icon on ); having found the required

DTMF/Option Button Functions

- This feature enables

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