Nortel Networks Dtmf Control Commands, Operating the RTU-292 from the Front Panel Keypad

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RTU-292 Operations Manual

the unit signals that it is dropping the link due to a lack of activity, either party may prevent the disconnection by speaking within five seconds.

3.Pressing the OFF button on the front panel of the RTU-292 will also cause the system to disconnect.

4.When the local phone is used, its operator may use the * # sequence or may simply hang up the phone.

3.7.6 DTMF CONTROL COMMANDS

Tables 3-1, 3-2, and 3-3 explain and list the RTU-292’s various DTMF command modes. DTMF commands may be entered via a connected telephone, a telephone set when the Local Phone Option is installed, or via the front panel keypad*. Additionally, the DTMF keypad on a radio may be used to make connections (see DTMF Access Option, 3.7.11).

* Some restrictions apply when sending commands via the front panel keypad:

3.7.6.1 OPERATING THE RTU-292 FROM THE FRONT PANEL KEYPAD

The RTU-292 can be operated from its front panel to allow the unit to be programmed, and if so equipped, control a Motorola URC-200 radio. When using the front panel, the operator uses the handset and keypad.

To begin front panel operation the user must enter three "*" keypresses. The RTU-292 will respond with an Acknowledge tone prompt and the voice prompt "READY". At this point all front panel keypad entries are treated just as though the user were sending commands via the telephone or local phone.

Front panel control operation will continue until one of the following conditions occurs:

•The user enters a "*#" sequence.

•There is no PTT activity or keypad activity for the duration of the activity timer.

While the operator is using the keypad to control the RTU-292, the unit will not be available for:

•PSTN Auto Answering.

•Radio Squelch Break Access (S/W option).

•Radio DTMF Control (S/W option).

•Local Phone Control (H/W option).

3-13	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 DescriptionTelephone Interface AssembliesMain Board Handset/Speaker Interface Power Supply SectionRadio Interface DSP ModuleQty Part Number Equipment and Accessories SuppliedOptional Equipment Not Supplied OptionsRTU-292 Specifications Reshipment of Equipment GeneralUnpacking and Inspection FCC Part 68 Regulations Installation OverviewInstallation Considerations Feature / Function Adjustment Default Setting 1RTU-292 Factory Default SettingsInput Power Selection Power RequirementsDC Input Power Selection Line Voltage SelectionSetting Telephone Send and Receive Levels Configuring the RTU-292Programming Mode Setup Parameters 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 Connection17J7 Handset RJ12C Jack Handset Connector16P1-RADIO DB-9 Male 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 Installation ChecklistOptions Installation and Configuration 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 Hold8.2 Manual Phone Patch Procedure8.1 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 UnkeyedRTU-292 Adapts To The Phone Line Caller Enters The Password if enabledCaller Dials The RTU-292 Terminating a Call RTU-292 Enters the Command ModePlacing a Call in the Command Mode Operating the RTU-292 from the Front Panel Keypad Dtmf Control CommandsDtmf Command Function 1Standard Dtmf Operational Commands2Programming Mode Dtmf Commands Calling Timer RTU-292 Password ProtectionInactivity Disconnect Timer Programming the Speed Dial Directory Using the RTU-292 Speed Dial FeatureUsing the Speed Dial Feature Optional 4 Wire Operation Factory ResetSpeed Dial Reset Audio BUS Arrangement Front Panel Buttons and IndicatorsMain Board Telephone Receive Circuits Telephone Interface CircuitsTelephone Send 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 Audible Ring Command Null CommandAuto Answer 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-292Call Starting Response Null ResponseAuto Answer Response Dtmf Response Dial ResponseDisconnect Response Handset Radio Response Elapsed Time ResponseHandset Phone Response Speaker Radio Response Speaker Phone ResponseTel-Line Radio Response Speed Dial ResponseTel-Line Phone 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 Analog Interface VMM-100 HardwareVMM-100 DSP Section 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