Uniden SMH250D, SMU250K manual Controls and Functions, Telephone Interconnect Functions

•Function Disable Tone - two short low tones indicating that the key function has been turned off.

•No Function Tone - a low/high/low/high tone sequence indicating the key function is not allowed.

•Down Channel Tone - a short low tone occurring at every down channel change.

•PTT Error Tone - a low tone sounding as long as the PTT is held, if transmit is not allowed on the selected channel.

•BCLO Tone - alternating high/low tones sounding as long as PTT is held if the channel is busy.

•TOT Caution Tone - short high pitch beeps sounding every second, beginning 5 seconds before transmitter shutoff occurs.

•TOT Error Tone - a high pitch tone sounding as long as the PTT is held, after TOT has occurred.

•Priority Tone - a short high pitch beep sounding during scan when the Priority Channel is received and when the programmed Priority Channel is selected.

Telephone Interconnect Functions

Phone Book - Any of 10 pre-stored memory numbers can be recalled by the A/B/C quick keys. Press the A/B/C key to display the first number, then press again as many times as necessary to recall the desired number. When PHONE BOOK is displayed, press the UP/ DOWN keys to scroll through the programmed numbers until the desired one is displayed. Press PTT to access dial tone on an interconnect repeater, then press PTT again to transmit the number. Numbers with more than 10 digits will automatically scroll to display the last 10 characters.

DTMF Redial - The A/B/C quick keys may be programmed to recall the previously displayed Phone Book number for redial. To use this function, access dial tone on an interconnect repeater as described above, then press the A, B or C key and hold for 2 seconds. The last transmitted Phone Book number will be displayed and can be transmitted by pressing PTT.

Controls and Functions

Microphone Jack - Allows attachment of standard, DTMF or base station microphone.

On/Off/Volume Control - Allows the radio to be powered off and on and the volume to be adjusted.

Up/Down Select Key - Allows selection of channels. Scan Key - Allows automation of scan function.

Monitor Key - Allows channel monitoring before transmit.

L/O - Allows channels to be added to or removed from the scan list. A/B/C - Option keys programmable for any of seven functions.

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