Radio Shack CT-503 Owner's Manual

Below you will find brief information for CT-503. This flip-style cellular phone offers an easy-to-read LED display, nine ringer styles, a headset jack for handsfree calls, up to 40 memory dial numbers, call timers, and security features to prevent unauthorized use. It supports two phone numbers and includes battery/signal strength meters for convenient monitoring.

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RadioShack CT-503 Manual | AI Chat & PDF Download | Manualzz

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Key features

  • Easy-to-read ten-character orange/green LED display

  • Nine different ringer styles

  • Headset jack for handsfree operation

  • Two phone number capability

  • Battery and signal strength meters

  • Call timers (individual, cumulative, resettable)

  • Memory dialing (up to 40 numbers)

  • Security features (lock, service restriction)

  • Special messaging service features (calling line ID, voice mail)

  • Automatic answer

Frequently asked questions

Press FCN 1, scroll to ringEr StyLE, press STO, select 1-9, press STO again.

Enter the number, press STO, enter the two-digit location (01-40), press STO.

Press FCN, hold JKL 5, press STO within 8 seconds.

Press FCN GHI 4 to see the battery strength meter.

Store the emergency number in memory 01, then hold down 1 for 1 second.

Hold down VOL during a call to increase/decrease volume.

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