TELEPHONE INTERCONNECT CALLS
SYSTEM MODELS
Telephone interconnect calls can be placed on radio channels equipped with this capability. Each channel programmed into the radio can be pro- grammed for telephone interconnect by enabling it for DTMF dial operation. One (1) of the ten (10) pro- grammed telephone numbers can be selected and automatically dialled.
Communication takes place in a simplex mode. In other words, the PTT BUTTON must be pressed each time you wish to transmit and it must be re- leased to receive.
The keypad on the radio’s front panel allows the operator to make telephone interconnect calls on radio systems equipped with this capability. Tele- phone numbers may be manually dialed using the DTMF numeric keypad, or one (1) of the ten (10) programmed or stored numbers can be selected and automatically dialed. Each channel may be pro- grammed for telephone interconnect by enabling it for DTMF dial operation.
Most systems require an "*" to be sent at the beginning of a transmission to get a dial tone. Others require "#". After the dial tone is received, the num- ber is sent.
Communication takes place in a simplex mode. In other words, the PTT BUTTON must be pressed each time you wish to transmit and it must be re- leased to receive.
At the completion of the call most systems re- quire a "#" to be sent to disconnect the user from the telephone system. Others require "*".
Placing A Manually Dialed Call
1.If the "SCN" status flag is on, press SCAN to turn scan off.
2.Select a channel in your radio system that has telephone interconnect capability. The radio should be programmed for DTMF op- eration on this channel.
3.Press and hold the PTT BUTTON to key the transmitter.
22
