Telephone Calls; Placing A Telephone Call - E.F. Johnson Company 53SL ES Series Operating Manual

Telephone Calls

- If private calls are not permitted (the Private Call option key is not programmed),
press the Call Response option switch to respond.
- The call must be answered within 20 seconds or it is automatically terminated.
- If the system is busy when a response is made, "BUSY" is displayed and the busy
tone sounds.
7.5 Telephone Calls
The telephone call feature allows telephone calls to be placed and received over the public
telephone system using your radio. The type of call (secure/clear) is determined by the
mode selected by the Clear/Secure option switch or the menu parameter selected.
Telephone calling is programmed to operate in one of the following modes:
• Disabled (telephone calls not available).
• Answer-only capability.
• List only - Telephone numbers can be selected from a preprogrammed list only (direct
entry as follows is not allowed).
• Unlimited - Telephone numbers can be selected from a list and also dialed directly
entered using the front panel controls or the keypad on the HHC.
7.5.1
To recall from a list:
1 With a SMARTNET/SmartZone/P25 channel selected, momentarily press the Phone
option switch (or select the menu parameter). The alias of the last called telephone
number is displayed.
2 If required, rotate the Select switch to display the desired number. The alias of each
number is displayed.
3 Press and then release the PTT switch and "DIALING" is displayed. Refer to the
bulleted list following Step 3 in the next section for events that may then occur.
To make a direct entry using DTMF keypad:
1 Select the menu parameter or press and hold the PHONE option switch until a tone
sounds (approximately one second). The alias of the last called telephone number is
displayed if it is in the phone number list. Otherwise, the last ten digits of the last called
53SL ES Series Mobile Radio Operating Manual April 2009

Placing a Telephone Call

Section 7 - SMARTNET / SmartZone / P25 Trunked Features
7-7