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The radios has a full implementation of DTMF, including the A, B, C and D codes. The numerical keys, as well as the
and
keys correspond to the matching DTMF codes. The A, B, C and D codes are located in the
,
,
and
keys
respectively.
To send DTMF codes, press the key(s) corresponding to the message you want to send while holding down the
PTT
key.
In general, there are two forms of selective calling in two-way radio systems: Group call, and Private call.
Group call, as the name suggest, is a one-to-many form of communication. Every radio in your working group is configured
the same way and any radio will make contact with every other radio in the group.
Private call, some times also known as paging, is a one-to-one form of communication.
Every radio is programmed with a unique ID code. And only by sending out a matching code can you get that radio to open
up to your transmissions.
6.2.1 Call With Signaling
A call with signaling refers to a call make to a target ID on a channel with signaling. The signaling type is DTMF signaling,
which needs to be preset signaling code, and the call is realized by encoding and decoding.
CPS Programming Path >> Programming >> DTMF System >> Call Code, Call Name >> ANI ID.
Configure the signaling code, mute mode, and PTT-ID for the channel.
With the above settings, press and hold the
[PTT]
key to making a call with signaling in the channel that is adapted to the
DTMF signaling code. When the receiving terminal receives the matching signaling, it can decode without performing any
operations.
Note: Setting the PTT-ID to OFF will disable the use of the DTMF signaling function for this channel.
6.2.2 DTMF Manual Dial
Short press the
key to enter DTMF manual dialing, enter the DTMF number in the following format, and press and hold
the
PTT
key to make a DTMF call.
The dialing format for DTMF calls to make Private call, Group call, and All call is as follows:
•
Private call
: Confirm the ID number with the
key, and press and hold the
PTT
key.
