Dtmf Overdial / Conventional Mode Telephone Interconnect - Ericsson EDACS PRISM HP Operator's Manual

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.
4. To terminate the call, momentarily press the
CLEAR/MONITOR button.
DTMF Overdial / Conventional Mode Telephone
Interconnect
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 DTMF (Dual-Tone Multi-Frequency) access dig-
its.
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 is
the method that is used for making a telephone intercon-
nect 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
M
overdialing can be stored in the phone list when program-
ming the radio. These numbers are accessed by press-
, then following the selection mode rules.
ing
54
NOTE