Radio Shack CT-503 owner manual Specifications, Patent Information

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17-1112.fm Page 59 Wednesday, July 21, 1999 2:34 PM

SPECIFICATIONS

Dimensions	55/8 × 23/8 × 11/2 Inches
Weight (with Supplied Battery)	9.6 oz
	(272 g)
Transmitting Power	0.6W + 2dB – 4dB
Operating Voltage	µ5.2–7.5 DC
Internal Battery	6.0V DC
Input to AC Charger	120V AC
Frequency Band	824–849 MHz (TX)
	869–894 MHz (RX)

Specifications are typical; individual units might vary. Specifi- cations are subject to change and improvement without no- tice.

PATENT INFORMATION

This phone is manufactured under one or more of the follow- ing U.S. patents.

4121218	4617520	D295975	4965537	D327061	5261119
4124879	D286778	4751737	4972355	5128834	5262710
4127824	4626309	D296187	4972432	D328302	5263052
4128740	4628529	4761621	4972455	5142551	5276707
4138681	4629829	4764737	4975808	5142696	5278994
4193036	4630304	D297734	4984290	5146620	D343173
4254382	4630305	D297735	D314173	5148471	5280637
4302845	4633141	4777564	D315330	5148473	D344087
4312074	4636593	Re32768	D315346	5148961	5287553
4327319	4636741	D299136	D315543	5150359	5287555
4329666	D288432	4797929	D315559	5150384	5287556
4369516	4648125	4798975	D315565	5152006	D344511
4369522	4649543	4800348	5004992	5157693	5301365
4378603	D288683	4802236	D315907	5163159	5321847
4390963	4654655	4809356	5008925	5164652	D348880
D269873	D289156	4811377	D316417	5166596	5349588
4389265	4662691	4811404	D316859	5175759	5359696
4400584	4667333	4827226	5017856	5175874	5361400

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Contents CT-503 Handheld Flip-Style Cellular Telephone Features Fm Page 3 Wednesday, July 21, 1999 234 PM Table of Contents Display Message Glossary Special FeaturesTroubleshooting Safety Information Care and Maintenance SpecificationsAlphanumeric Keypad Look AT Your PhoneRetractable Antenna Earpiece Alphanumeric Display Ten-Character LEDFlip Cover Reading the DISPLAY/INDICATORSFunction Keys IU In-Use Indicator Signal Strength IndicatorBattery Charge Indicators RM Roam Indicator NS No Service IndicatorInstalling the Battery Using the BatteryCharging the Battery Approximate Checking Battery PowerBattery Type Charging Time Hours Recommended Recharging TimesReplacing a Battery During a Call Important Battery Tips Turning the Phone ON/OFF Signal STRENGTH/SERVICE AreaBasic Operation Making a Call Tone You See Description System Busy MessageMissed Call Message Answering a CallAdjusting the Ringer Volume Adjusting the VolumeAdjusting the Earpiece Volume Making Emergency Calls Using MuteImportant Notes Redialing NumbersRedialing the Last Number Called Using Automatic Redial Any Number Longer Than 10 Digits Displaying NumbersYour Phone Number Turning a Function On/Off Menu FunctionsOverview Function Status Quick-Review On or Functions ListDisplay Shows Function Description See REMInd MSgChanging the Ringer Style Using the Menu FunctionsUsing the Call-Time Reminder Tone Using Automatic Answer Disabling the Emergency Display Using Message Reminder Tones Storing Speed Dial Numbers Using MemorySpeed RECALL/DIALING ONE-TOUCH DialingMemory SCROLLING/DIALING Clearing a Memory Changing a Number in MemoryFrequently Dialed Area Codes/Prefixes Using Scratchpad MemoryBanking or Other Phone Services Memory Dialing TipsLocking Your Phone Security FeaturesUsing Manual Lock Changing the Lock Code Using Automatic LockDisplaying the Lock Code Level Using the Service RestrictionYou See Meaning Special FeaturesUsing the Messaging Functions Overview/Receiving MessagesViewing/Recalling Messages Deleting Messages Using the Call TimersDisplaying the Individual Call Timer Displaying the Cumulative Call Timer Using the Resettable Call TimerPhone Cellular System Type Display Shows Number Selecting the Active Phone NumberSetting the Cellular System Type SCAn Roaming Mode Description DisplayStd Ab Std bASelecting the Cellular System Type Displaying the Currently Selected System TypeRoaming Using Cellular System PIN DialingEnabling/Disabling PIN Dialing Making a Call Using Your PINUsing a Headset Using the Phone with Handsfree EquipmentAdding a Pause Using TOUCH-TONE ServicesFm Page 53 Wednesday, July 21, 1999 234 PM If the power comes on, but the phone does not work TroubleshootingIf the phone’s power does not come on or stay on Operating Environment Safety InformationTraffic Safety Emergency Calls FCC Regulations Care and Maintenance Patent Information SpecificationsFm Page 60 Wednesday, July 21, 1999 234 PM Display Message Glossary Loc’d SErviceLEvEl 1 or LocCodeFm Page 63 Wednesday, July 21, 1999 234 PM Division of Tandy Corporation RadioShack