Nortel Networks RTU-292 operation manual Dtmf Access Option

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RTU-292 Operations Manual

7.5 DTMF ACCESS OPTION

This option allows a radio user to use his DTMF keypad to quickly place a telephone call via the RTU-292. If the user does not have DTMF capability, the Squelch Break Access Option allows the use a series of squelch breaks to automatically connect to the telephone at speed dial location #01 (see next section). In the following description, system voice prompts are listed. If the Voice Prompt Option is not installed, only the tone prompts will be heard.

NOTE

It is possible to enable this option remotely. If you have purchased an RTU-292 without this option and want to add it, contact JPS.

7.5.1Initiate Call Via Attention Signal

The radio user sends the “Attention” signal to the RTU-292. The attention signal consists of the DTMF characters “* * *” (three stars).

7.5.2RTU-292 Response to Attention Signal

The RTU-292 will respond with the voice prompt “RTU-292 automatic phone patch. Enter phone number followed by the “pound” sign or stand by for auto-call”. The RTU-292 will also give the Acknowledge (ACK) tones. If Password Protection is enabled, the RTU-292 will request the correct password prior to asking for the telephone number.

7.5.3Radio Caller Provides Calling Directions

The radio user can then enter a phone number (terminated by the # sign), or “* n n #” for speed dial location “nn”. If the caller forgets to enter “#” the RTU-292 will simply wait 4 seconds to ensure that data entry is complete and then begin to place the call. If no DTMF is detected at the RTU-292, the unit will place a call to the telephone at the speed dial location #01. This is an “auto-call”.

7.5.4RTU-292 Plays Back Phone Number & Prompts for Confirmation

The RTU-292 will play back the number it intends to dial. In the case of speed dial numbers, it only plays back the speed dial location and not the number stored at that location. The RTU- 292 then prompts the caller for confirmation with the prompt “Please confirm by entering a single “Star” digit”, along with the Query tone prompt. If the RTU-292 does not receive confirmation within five seconds, it will give a Timeout prompt and go back to its waiting state.

7.5.5 RTU-292 Places the Call

The RTU-292 then informs the radio user that the call is being placed. The ringback information that is provided when placing a call via the RTU-292 front panel keypad or Local Phone is not sent over the air due to FCC regulations. The RTU-292 adapts to the phone line while placing the call.

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JPS Communications, Inc.

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Contents JPS P/N Revision July JPS Communications, IncPhone 919 Fax 919 Proprietary StatementTable of Contents RTU-292 Theory of Operation Front Panel Buttons and Indicators Schematic Diagrams List Of Figures List of Tables Glossary This page intentionally left blank General Scope DescriptionAssemblies Main BoardTelephone Interface Handset/Speaker Interface Power Supply SectionRadio Interface DSP ModuleQty Part Number Equipment and Accessories SuppliedOptional Equipment Not Supplied OptionsRTU-292 Specifications General Unpacking and InspectionReshipment of Equipment Installation Overview Installation ConsiderationsFCC Part 68 Regulations Feature / Function Adjustment Default Setting 1RTU-292 Factory Default SettingsInput Power Selection Power RequirementsDC Input Power Selection Line Voltage SelectionConfiguring the RTU-292 Programming Mode Setup ParametersSetting Telephone Send and Receive Levels Factory default settings are indicated by an asterisk Recommended Phone Line SettingsType of System Telephone Send/Receive LevelsVOX Hangtime VOX HangtimeVOX Sensitivity VOX SensitivityDial Mode Dial ModeTelephone Ring Volume RX Line Input ImpedanceSW1-3 Radio Control Off Disabled Enabled Radio Control ModeFull/Half Duplex SW2-8 Full/Half Duplex Off Full Duplex10Password Protection Password Protection11Voice Prompts Enable Voice Prompts14TX Level Set-up Mode 12Local Phone EnableInterconnect Information 13 Local Phone Ringthrough15J1 TEL Line RJ-11C Telephone ConnectionPin Function Radio ConnectionHandset Connector 16P1-RADIO DB-9 Male17J7 Handset RJ12C Jack 18Terminal Block 6 Position Terminal Block19P2 RS-232 Connector DB-9 Male Audio Level Setup and AdjustmentsSetting the Transmit Level 5 RS-232 Connection10.1.2 Setting the Receive LevelRTU-292 Operations Manual Outline Dimensions Control and Connector Locations Location Of Internal Option Settings Internal Option Setting Details Audio Interface Wiring Diagram Interface Details Installation Checklist Options Installation and ConfigurationInstallation Checklist Front Panel CONTROLS, Indicators and Connectors Phones Volume Control Speaker Volume ControlKeypad TEL Line ButtonsAuto ANS Button Speaker ButtonsAudible Ring Button KEY Pushbutton1 P1 Radio Connector Rear Panel Connectors4 J2 Local Phone Connector 7 P1 AC Power ConnectorOperation Overview OperationUSE of the RTU-292 Speaker to Monitor Audio Placing a Telephone CallConnecting the Radio to the Telephone Line Using the Handset with the RadioReceiving a Telephone Call Putting a Telephone Call on HoldManual Phone Patch Procedure 8.18.2 8.4 8.38.5 8.6Remote KEY Negative Acknowledge ErrorSelf Test Automated OperationWaiting For Input Query Disconnecting DisconnectRadio Is Keyed Keyed Radio Is Unkeyed UnkeyedCaller Enters The Password if enabled Caller Dials The RTU-292RTU-292 Adapts To The Phone Line RTU-292 Enters the Command Mode Placing a Call in the Command ModeTerminating a Call Operating the RTU-292 from the Front Panel Keypad Dtmf Control CommandsDtmf Command Function 1Standard Dtmf Operational Commands2Programming Mode Dtmf Commands RTU-292 Password Protection Inactivity Disconnect TimerCalling Timer Using the RTU-292 Speed Dial Feature Using the Speed Dial FeatureProgramming the Speed Dial Directory Factory Reset Speed Dial ResetOptional 4 Wire Operation Front Panel Buttons and Indicators Main BoardAudio BUS Arrangement Telephone Interface Circuits Telephone Send CircuitsTelephone Receive Circuits Radio Interface Circuits Ring Detector and Tone RingerReceiver Input Amplifier Transmitter Audio OutputFSK Modem Dtmf DetectorMicrophone Circuit Speaker and Headphone CircuitsAdaptive Hybrid Audio DelayNoise Generator Peak DetectorAC Power Supply Power SupplyDC Power Supply 8 CPUVoice Prompt Option Option Interface BoardPrompt Tone Generator Speech ProcessorVoice Prompt Software Local Phone OptionInterface Circuitry DIAL/BUSY GeneratorsCommands Sent to the RTU-292 RS-232 Remote Control Overview1Command Summary Null Command Auto Answer CommandAudible Ring Command Dial Command Date CommandDtmf Command Disconnect CommandHandset Radio Command Handset Phone CommandSpeaker Radio Command Speaker Phone CommandSD nnALL num.? CR Speed Dial CommandTel-Line Radio Command Tel-Line Phone CommandSoftware Version Command Time CommandResponse Summary Status Returned from the RTU-292Null Response Auto Answer ResponseCall Starting Response Dial Response Disconnect ResponseDtmf Response Elapsed Time Response Handset Phone ResponseHandset Radio Response Speaker Radio Response Speaker Phone ResponseSpeed Dial Response Tel-Line Phone ResponseTel-Line Radio Response Version Response Time/Date ResponseResponse Error Codes Response Error CodesCall Progress Responses from the RTU-292 Call Progress ResponsesRepair or Replacement Preventive MaintenancePerformance Testing AlignmentHybrid Balance Measurement Hybrid Balance Test Set-Up Main Hybrid Test Procedure Alternate Hybrid Test Procedure VOX Sensitivity Measurement VOX Sensitivity Test Set-Up VOX Test ProcedureFault Analysis Description Replaceable Parts ListDescription Reference Designator RTU-292 Operations Manual Reference Designator RTU-292 Options Special Software VersionsVoice Prompts Enable Installation and ConfigurationSW1-6 Voice Prompts Off Disabled Enabled OperationVoice Prompt Option Installation Local Phone Enable Local Phone Option Installation and ConfigurationSW1-7 Local Phone Off Disabled Enabled SW1-8 Ringthrough Off Disabled EnabledLocal Phone Option Operation 5Local Phone Dtmf CommandsVMM-100 Hardware VMM-100 DSP SectionVMM-100 Analog Interface VMM-100 Software VMM-100 Installation and ConfigurationVMR Algorithm Noise Reduction AlgorithmVMM-100 Option Installation Environmental VMM-100 SpecificationsVMM-100 Switch Functions VMM-100 I/O Connector Information P9Dtmf Access Option After the Call Begins RTU-292 Prompts for Confirmation Squelch Break Access OptionSetting The Date Setting The TimeCall Logging Option Checking The Time And DateControlling the Radio VIA the RTU-292 Front Panel Keypad Radio Control OptionCommand Followed By Command Description 9DTMF Radio Control CommandsSchematic Diagrams Blank Index Environmental Self Test Speech Processor
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