Teledex IP250DVoIP manual Dtmf Signaling, Terminating a Call, Headset and Speakerphone Usage

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USING THE IP250D

The volume of the handset can be increased or decreased by pressing the up or down volume keys. The volume buttons adjust the volume for the currently active call. The volume settings may be saved for future calls by setting the volume to the desired level and pressing the PROGRAM key immediately afterward.

4.5 DTMF SIGNALING

Virtually all telephony applications, such as those used by customer service centers and calling cards, require touch tone data entry. For example, calling cards frequently request that the user press ‘1’ for English and ‘2’ for Spanish. The technical name for the tones generated by pressing digits on the keypad is dual tone multiple frequency, or DTMF. The IP250D supports DTMF signaling by generating DTMF tones over the virtual audio connection. The keys pressed during telephone calls are also displayed on the display below the call duration indicator. The digits begin appearing on the second row (left side) of the display. Each line on the display has room for sixteen digits; the display scrolls to the left when the user dials a number exceeding sisxteen digits in length, and will continue to scroll as more numbers are dialed.

4.6 TERMINATING A CALL

You may terminate a call by various methods, depending upon whether you are using the handset, speakerphone or a headset:

•If using the handset, the call may terminated by replacing the handset on the cradle.

•If using a headset, the call may be terminated by pressing the SPKR/ HSET key, or by lifting the handset off the cradle and then putting it down again on the cradle.

•If using the speakerphone, the call may be terminated by pressing the SPKR/HSET key, or by picking up the handset off the cradle and putting it down again.

If no other call is active, the phone will revert to the idle state upon the termination of a conversation. If another call is active, and therefore on hold, it will remain on hold until the user takes it off hold, or the other party terminates the conversation. In either case, the software will turn off the LED corresponding to the formerly active line.

4.7 HEADSET AND SPEAKERPHONE USAGE

The IP250D software routes the voice to the handset, speakerphone, or headset based upon the actions of the user. The software gives the highest priority to the handset, secondary priority to the headset, and lowest priority to the speakerphone. If a call is initiated while the handset is off-hook, or if a call is received and the user takes the handset off hook, the audio channel will be routed through the handset. The headset may be activated by pressing the SPKR/HSET key while on the handset, and then putting

13 Teledex IP250D User’s Guide SIP/MGCP

Part Number 600-0480-60

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Contents IP250D VoIP Network TerminalImportant Safety Instructions Requirements of Part 15 FCC Rules European Requirements 89/336/EECContents Introduction to the IP250D VoIP Network Terminal Downloader Application Introduction to the Teledex IP250D VoIP Network Terminal IP250D Works Like a TelephoneInstalling the IP250D Connecting a PC to the IP250D Connecting the HandsetConnecting the IP250D to the Network Unpacking the IP250DConnecting a Headset to the IP250D Arranging the IP250D on the DeskMounting the IP250D on a Wall Configuring the IP250D HomeLAN Interface Settings LAN ConfigurationMgcp Configuration Vlan SettingsMgcp Settings OOB Signalling SettingsSIP Configuration Handset SettingsSIP Settings Security Settings Codec ConfigurationSystem Configuration Localization Settings Download Configuration Reset Configuration Snmp Settings Incoming Call Notification Using the IP250DTelephone Idle Receiving a CallPlacing a Call Dtmf Signaling Terminating a CallHeadset and Speakerphone Usage Hold and Multiple Lines Teledex IP250D User’s Guide SIP/MGCP Redialing the Last Number Dialed Muting a CallTransferring a Call Forwarding ALL CallsMaking Conference Calls Using the Msgs KEYConfiguring Local Speed Dial Numbers Changing Ringing SoundsGeneral Troubleshooting Troubleshooting and CareBasic Troubleshooting Measures Network TroubleshootingSymptom MGCP-SPECIFIC Issues SIP-SPECIFIC IssuesDownloader Application Cleaning the IP250DUsing the Downloader Application Executing the Downloader ApplicationAppendix B Safe Bootup Modes Appendix a Determining the IP AddressDownload of the new firmware image Appendix C Restoring Factory Defaults ’SAFE’ Modes on AN IP PhoneAppendix D Dial Plans Appendix E Tone and Ring Cadence Configuration Tone ConfigurationSample Dial Plans Example Tone Configurations CUSTOM3 CUSTOM4 CUSTOM5 CUSTOM6 CUSTOM7 CUSTOM8 CUSTOM9Ring Cadence Configuration Example Ring Cadence ConfigurationAppendix F IP250D Product Specifications Appendix G Product Support
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