E.F. Johnson Company 7780 Series, Preliminary Service Manual, Page: 30 / 116

TRANSCEIVER OPERATION
2-16
November 1999
Part No. 001-7780-500
2. To answer the call, press the Private Call option
switch and then the PTT switch and begin talking.
The private call mode is indicated by “
C
” in the
upper part of the display. The alias of the incoming
call is displayed if the ID is in your call list. Other-
wise, the unit ID is displayed. NOTE: If the Private
Call option switch is not pressed before the PTT
switch, a group call is transmitted on the selected
group.
•
To end the call when the conversation is complete
or at any other time, press the
CLR key. If the call
is not answered within 20 seconds, it is automati-
cally terminated.
•
If private calls are not permitted (Private Call
switch not programmed), press the Call Response
option switch, if available, to answer the call.
2.5.6 TELEPHONE CALLS
General
Telephone calls allow calls to be placed and
received over the public telephone system using the
transceiver. If the transceiver is programmed for tele-
phone calls (Phone option switch programmed), they
are placed and received as follows:
Placing a Telephone Call
Telephone calls can be placed by selecting the
number from a preprogrammed phone number list (list
entry) or by directly entering it using the keypad
(direct entry). Direct entry is available with full
keypad (15-key) models only. Proceed as follows:
List Entry Method (All Models)
1. With a SMARTNET/SmartZone channel selected,
momentarily press the Phone option switch. The
phone mode is indicated by the
icon, and the
display indicates the alias of the last called tele-
phone number if it is in your phone number list.
Otherwise, the last called telephone number is
displayed.
2. Enter the index of the desired telephone number if
you know it or scroll through the list using the
and
keys until you find the desired number.
Press the
CLR
key to cancel the call.
3. Press the PTT switch or the
ENT
key to initiate the
call. The display indicates “WAIT” while the
connection to the phone system is occurring. Once
connected, the normal dial tone is heard and the
alias of the number being called is displayed. The
radio then automatically dials the telephone number
and the normal ringing or busy tone is heard.
Proceed to the bulleted list which follows the next
method for conditions that may then occur.
Direct Entry Method (Full Keypad Models Only)
1. With a SMARTNET/SmartZone channel selected,
press and hold the Phone option switch until a tone
sounds (approximately 1 second). The last phone
number called is displayed, and the phone mode is
indicated by the
icon.
2. Enter the number using the
0-9
and
#
keys. To dial
a character, press F1 and then the key. To
enter a pause (indicated by “P”), press the F1, ,
and then # keys. The number scrolls to the left in the
display so that the seven right-most digits are
always displayed. Numbers up to 16 digits
(including pauses) can be entered. Press the
CLR
key to cancel the call.
3. Press the PTT switch or the ENT key to initiate the
call. The display indicates “WAIT” while the
connection to the phone system is occurring. Once
connected, the normal dial tone is heard and the
alias of the number being called is displayed. The
radio then automatically dials the telephone number
and the normal ringing or busy tone is heard. Any of
the following conditions may then occur.
•
After the called party answers, press the PTT
switch to talk and release it to listen. You cannot
talk and listen at the same time because the radio
cannot transmit and receive at the same time.
Each time the PTT switch is released, a tone is
heard by the other party that indicates when a
response can be made. To end the call when the
conversation is complete or at any other time,
press the
CLR
key.
•
If enabled by dealer programming, a number can
be dialed during a call by simply holding down
the PTT switch and dialing the number.
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