Jabra 920 user manual
Contents
1. A Yes the Jabra PRO 920 is able to pair with four headsets in total one primary and three secondary headsets Please see section 6 3 of this manual for more information Q Can turn the headset off to save power when I m away from the base A Yes Press and hold the headset multi function button on the headset for five seconds to power the headset off To power the headset back on dock the headset with the base or tap the multi function button Q What is the talk time for a Jabra PRO 920 headset A Up to 8 hours talk time Q My headband earhook neckband is broken How do purchase another one A Contact your local Jabra supplier 29 9 TECHNICAL SPECIFICATIONS 9 1 JABRA PRO 920 HEADSET Operating environment 0 C to 40 C Up to 95 RH non condensing Call control Multi function button support for answer call end call reject call docking operations also answer and end calls Volume control and microphone mute Button controls on headset Visual indicator LED indicates call status pairing status and other events Audio indicators Tones indicate incoming calls low battery volume level microphone muting and other events Sound quality DSP noise reduction echo cancellation tone control wideband and narrowband audio Recharge While docked in the Jabra PRO 920 base Wireless standard CAT iq European DECT and U S DECT DECT range For European DECT up to 120 meters from Jabra PRO 9202. Jabra PRO 920 CONTENTS 1 2 2l 2 2 2 3 2 4 29 3 31 2 3 4 4 4 1 4 2 5 dal 5 2 gt 5 4 50 6 6 1 6 2 6 3 aicdeeidies 4 0 n 5 PASA UE CON TEN Dear 5 MEADS We nem ee 6 pi NDS aE r E a A E a A E A A E E EE EE 7 9 SEI ASES O Sierro da 10 CONNECTING TO A DESK 11 OM lea ro IE E A A O EC o e ace 11 era ECONNECT ROWER SUPRE TO BAD ota ltda 14 14 CONFIGURING THE DESK PHONE AUDIO 0 15 eter 15 SEITHER ROPBONEVORUNE een 16 JABRA PRO 920 FEATURE Susini aa 17 PEASE VICE ING een 17 PEASE SEEAKER VO LPUOMEDUTTO Nara 17 sa e R 18 HEADSELEED INDIEATOR ass ee er aa 18 HEADS ERAN TOS sai 19 O Seesen een 20 9 21 6 15 ANSWERING CALLS AND ENDING CAEUS na 21 SWITEHING BETWEEN PRONEAND READS ET era 22 22 Bel 72 7 3 7A ES ee Teh 7 8 29 7 10 8 1 92 93 9 4 95 9 6 ADVANCED JABRA PRO 920 FEATURES nesesesensnssesenenenne 23 EN ON Seesen 23 VAREL RAN GE ee et ee 23 EIANGERINGTONF seen ee 23 E 23 24 HOW TOCHANGEIHIEADVANEEDSETTIN 24 A 26 COPY SELIINSSIOHMULTPEEJABRAPROSZEBEDSE aaa 27 FORCED PAIRING PAIRING A NEW PRIMARY HEADSET nn 27 UPDATE FIRMWARE AND HEADSET SETTINGS SERVICE CABLE 27 cthchiaiete 28 0 ROSA ADTT OU BEE 0 28 TECHNICAE SPECIFICAT
3. A S All other trademarks included herein are the property of their respective owners Design and specifications subject to change without notice MADE IN CHINA SY Type WHB003 K zo www jabra com 32 00696 F
4. ATTACHMENTS The Jabra PRO 920 headset can be worn in three different wearing styles headband ear hook or neckband The headband and earhook attachments earhook not supplied in all regions are included with the Jabra PRO 920 The neckband attachment can be purchased separately All wearing styles are interchangeable and can be worn on either the left or right ear Regardless of wearing style position the microphone as close to the mouth as possible for maximum noise cancelling effect Attaching the headband Attaching the neckband optional accessory 24 BASE OVERVIEW Headset cradle Headset recharge contact Audio link indicator Foldable base stand Mute indicator Battery indicator Microphone volume controls Clear Dial Tone switch AUX port Handset port Power adapter port Telephone port 2 5 OPTIONAL ACCESSORIES The following Jabra PRO accessories are available separately Visit jabra com for full accessory overview Jabra GN1000 Electronic hookswitch adapter actual product may vary from illustration Neckband Replacement headband attachment attachment Replacement ear cushions Service cable 3 CONNECTING TO A DESK PHONE 3 1 FOLDABLE BASE STAND The Jabra PRO 920 base stand can be folded into three positions open closed and standing position as illustrated 3 2 CONNECT TO DESK PHONE OPTION 1 Desk Phone with Headset Port This type of
5. Power on Power off Y 5 secs 5 2 HEADSET SPEAKER VOLUME BUTTONS The speaker volume buttons adjust the headset speaker volume Speaker volume zz buttons 5 3 HEADSET MUTE BUTTON The mute button mutes or un mutes the headset microphone Mute button 54 HEADSET LED INDICATOR The LED indicator indicates call status LED sample Led indicator LED sample Headset state Headset state click to view click to view Headset docked in Connected O pace CHO Headset docked in Not connected O charger CHO Headset docked in Active call O unknown base O Incoming call CHO Settings copying CHO Power on O Settings copied O Settings cannot be Power off O copied CHO Pairing O Firmware updating O 5 5 HEADSET AUDIO INDICATORS The headset plays a variety of voice announcements and audio tones to indicate headset status and actions Audio Sample Audio sample click to listen Audio tone click to listen Power on CS Microphone muted 6 Power off 6 Call ended 6 Button tap 6 Battery low 6 CS Conference start O tap Button press O Conference end 6 Maximum speaker volume O Out of range O reached 0 Incoming call speaker volume 6 1 6 reached 5 6 BASE VISUAL INDICATORS The Jabra PRO 920 base has three LEDs to indicate battery call status and events Event Battery chargin
6. desk phone has a dedicated headset port usually at the back of the phone These phones typically have a button on the front panel for switching between handset and headset 1 Plug the supplied telephone cable into the port marked on the base 2 Connect the telephone cable to the headset port 9 on the desk phone OPTION 3 Desk Phone with GN1000 The GN1000 remote handset lifter manually lifts the desk phone handset to make or answer a call For mounting instructions refer to documentation supplied with the GN1000 1 On the desk phone unplug the handset cable from the phone body 2 Connect the handset cable to the port marked on the base 3 Plug the supplied telephone cable into the port marked EH on the base 4 Connect the telephone cable into the handset port on the desk phone 5 Connect the GN 1000 cable into the port marked on the base OPTION 2 Desk Phone with Jabra Link A Jabra Link adapter enables an incoming call to be answered or ended by the headset multi function button Contact your local Jabra dealer to purchase a Jabra Link adapter for your specific desk phone 1 Connect the Jabra Link adapter as shown in adapter documentation supplied with the Jabra Link On some phones the telephone cable will also need to be connected 2 Call your connected desk phone using another phone to enable the Jabra Link adapter Wait 10 seconds before answe
7. 9 5 EC Hereby GN declares that this product is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC For further information please consult http www jabra com Within the EU this device is intended for use in Austria Belgium Cyprus Czech Republic Denmark Estonia Finland France Germany Greece Hungary Ireland Italy Latvia Lithuania Luxembourg Malta Poland Portugal Slovakia Slovenia Spain Sweden The Netherlands United Kingdom and within EFTA in Iceland Norway and Switzerland 32 FCC This device complies with part 15 ofthe FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Users are not permitted to make changes or modify the device in any way Changes or modifications not expressly approved by Jabra will void the user s authority to operate the equipment This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 ofthe FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio com
8. IONS une 30 JABRA PROS OHEA E see 30 E SE E AE a a a a ee EROS 31 MATERIAE SAND ALLER CIS eier 31 AAA ld 32 PRODUCT DEP Beeren 32 CERTIFICACION NDS ArE PEAPPRONA Dash 32 1 WELCOME Congratulations on purchasing your new Jabra PRO 920 We are sure you will enjoy its wide range of features and find the headset comfortable to wear and easy to use Jabra PRO 920 headset features e Wideband audio for exceptional sound quality Volume and mute controls e Intuitive headset multi function button for easy call handling LED and audio indicators Advanced hearing protection with SafeTone Noise cancelling microphone Auto sleep mode for energy conservation e Headband and earhook wearing styles earhook not supplied in all regions Jabra PRO 920 base features Headset recharge docking cradle e Visual call status indicators Battery indicators e Voice prompted configuration Port for Jabra LINK adapter and GN1000 remote handset lifter 2 PRODUCT OVERVIEW 2 1 PACKAGE CONTENTS Headset Power adapter Base Telephone cable Earhook attachment not supplied in all regions 2 2 HEADSET OVERVIEW Speaker volume up button Mute button Speaker volume down button LED indicator Multi function button Microphone boom arm Speaker Mount for wearing style attachments Recharge contact Noise cancelling microphone 2 3 HEADSET
9. PROTECTION SafeTone provides effective hearing protection against potential risks such as acoustic shock and noise exposure SafeTone consists of two components PeakStop and IntelliTone and can be set using the Jabra PRO 920 headset see Section 7 6 PeakStop acoustic shock protection PeakStop automatically suppresses sounds over 118dB A protecting hearing from acoustic shock IntelliTone noise exposure protection IntelliTone offers protection against acoustic shock and noise exposure over 85dB A corresponding to up to 8 hours of daily talk 7 2 WIRELESS RANGE The Jabra PRO 920 supports a maximum wireless range of up to 120 meters Physical obstructions and electromagnetic interference may shorten this range The wireless range can be adjusted to prevent interference with other wireless devices see Section 7 6 Headset sound quality may deteriorate the further the headset is from the base and may improve the closer the headset is to the base When the headset is completely out of range a unique tone will be played in the headset every few seconds If the headset is on a call when moved out of range the audio will be lost however the call will remain active at the base for 120 seconds To restore audio to the call move the headset into range of the base If the headset remains out of range of the base for more than an hour the headset will power down to conserve battery 7 3 CHANGE RINGTONE Th
10. andset from the desk phone receiver to automatically place or answer a call To purchase the Jabra GN1000 remote handset lifter contact your supplier or visit www jabra com 76 HOW TO CHANGE THE ADVANCED SETTINGS Seven advanced settings can be configured using the base Voice prompts indicate the current setting and value The seven settings are e Mute reminder tone e Ringtone Audio protection Wireless range Auto sleep mode Remote call control e Wideband audio 24 Start setup mode Put on the headset Simultaneously press and hold both headset Start volume buttons until the voice prompt says Setup and then release the buttons 2 Setup mode The headset buttons are used to cycle through the settings and values The base lights or voice prompts are used to indicate which setting and value is currently selected Settings Values Cyc le i Cy cle through He through settings values Base Voice Base Voice Value Setting light prompt light prompt Mute reminder O On default flash x1 tone 0 OF m 6 Ringtone 1 default O CS Ringtone 2 304 O CS Ringtone 3 flash x2 O A Ringtone 4 O O Ringtone 5 So O A Peakstop default Audio 67 flash x3 protection O O Peakstop and Intellitone O CS Normal range default 6 N 2 Wireless range om ange O Very low
11. base to headset For U S DECT up to 350 feet from Jabra PRO 920 base to headset DECT frequencies US DECT 1 92 1 93 GHz EU DECT 1 88 1 90 GHz Wearing styles Headband and earhook earhook not supplied in all regions Neckband is available as an accessory Microphone boom arm style Midi Speaker s Wideband speaker Microphone Noise cancelling microphone 30 9 2 HEADSET BATTERY Battery type Lithium lon polymer Battery capacity 295 mA h typical Battery talk time Up to 8 hours Battery lifetime Minimum 1000 charge cycles Battery standby time At least 36 hours Operating temperature range 20 C 0 The headset features a temperature dependant charging algorithm that prevents the battery from being charged during extreme temperatures below 0 and above 45 C Battery charge time 20 charge in less than 20 minutes 50 charge in less than 45 minutes Full charge in less than 3 hours Battery shelf life Headset battery holds charge for 6 months in the off state before recharge is required 9 3 MATERIALS AND ALLERGIES The headband attachment is made of stainless steel and does not have a nickel coated surface Nickel release from the headband is 0 02 ug cm2 week which is below the 0 50 ug cm2 week limit established by EU Directive 94 27 EF The stainless steel alloy was tested for nickel release in accordance with the European standard EN 1811 1998 Other wearing styl
12. ctly connected Q The person I am calling cannot hear me Why A The clear dial tone or microphone volume settings might be incorrectly set Read Section 3 and 4 of this manual Q Why am getting a buzzing sound in my headset A Assuming the device has been set up correctly the desk phone may not be fully immune to the radio signals the headset uses To overcome this problem move the headset base at least 30 cm away from the desk phone Q When I try to make a call on my desk phone the GN1000 RHL lifts but the call is not connected A Ensure the base is connected to the desk phone handset port and not the desk phone headset port The GN1000 should not be connected to the headset port 28 Q Is it possible to automate calling and answering on my desk phone without using a handset lifter A Yes if the desk phone has an electronic hookswitch feature Check your supplier for compatibility with your phone and or consult the support section on www jabra com Q Why does my desk phone s electronic hookswitch not work with my headset A Please check your specific desk phone documentation for electronic hookswitch compatibility and configuration settings Alternatively visit www jabra com Q What is the range on the Jabra PRO 920 A Jabra PRO 920 supports a maximum range of up to 120 m base to headset Range varies according to the environment in which the headset is used Q Can make a conference call using multiple headsets
13. e Jabra PRO 920 has 5 ringtones to select from The ringtones will only play in the headset To change ringtone see section 7 6 74 POWER MANAGEMENT The Jabra PRO 920 provides several built in power management features for conserving energy Auto sleep mode Auto sleep mode can be enabled using the Jabra PRO 920 base see Section 7 6 Auto sleep mode is off by default When enabled the Jabra PRO 920 will automatically enter sleep mode after 8 hours of inactivity as indicated by the 23 battery indicator slow flashing blue Sleep mode will end when docking or undocking the headset Automatic headset power off After 60 minutes of no link between headset and base the headset will automatically power off To power the headset on tap the multi function button 5 REMOTE CALL CONTROL Remote call control or hookswitch is the control mechanism used to answer orenda call a desk phone To enable the Jabra PRO 920 headset to answer or end calls the desk phone will need to have a Jabra Link or a GN1000 installed Electronic Hookswitch EHS An electronic hookswitch is a feature on some desk phones that enables calls to be answered or ended by the headset multi function button To use this feature an electronic hookswitch adapter e g Jabra Link needs to be connected between the desk phone and the Jabra PRO 920 base To purchase a Jabra Link contact your supplier or visit www jabra com GN1000 A GN1000 manually lifts the h
14. e attachments are made of plastic and contain no known allergens The ear cushions do not contain vinyl The products contain no nickel chrome or natural rubber that can come into contact with users skin 31 94 JABRA PRO 920 BASE The Jabra PRO 920 base meets the following specifications Dimensions 118 mm 76 mm 29 mm Wireless standard CAT iq European DECT and U S DECT Operating environment 0 C to 40 6 Up to 95 RH non condensing Recharge cradle Fits supplied Jabra PRO 900 series headset Desk Phone connections RJ 11 for handset RJ 11 for phone body or headset port RJ 45 for AUX for Jabra Link or GN1000 handset lifter Clear Dial Tone switch and microphone volume switch Electromechanical switches Clear dial tone switch and microphone volume level set manually Electronic hookswitch standards GN1000 Jabra IQ DHSG and MSH and other Jabra DHSG adapters Each EHS requires additional cabling and or equipment available separately GN1000 is supported by default and requires no additional configuration FRODUC DISPOSAL Please dispose of the headset according to local regulations and recycle when possible Do not dispose as household waste Do not dispose of the headset in a fire as the battery may explode Batteries may also explode if damaged 9 6 CERTIFICATIONS AND SAFETY APPROVALS CE This product is CE marked according to the provisions of the R amp TTE Directive 9
15. g slow flash Full battery Medium battery Low battery Very low battery fast flash Sleep mode slow flash Unknown battery status Microphone muted Active audio link between headset and base Searching for headset 20 6 CALL MANAGEMENT 6 1 MAKING CALLS ANSWERING CALLS AND ENDING CALLS Phone with headset port Phone with Jabra Link or GN1000 Phone without headset port 1 Tap the headset button on the desk phone 2 Lift headset from 1 Lift headset from docking cradle or 1 Lift headset from docking cradle or tap the multi function button h Iti wane docking cradle or an N 2 Lift 065 phone call function button tap the multi handset and set 2 Dial number function button aside using desk 3 Dial number using phone 3 Dial number using desk phone l desk phone 1 Lift headset from 1 Lift headset from i le ki le docking crad e or fi headset SER docking crad e or A tap the multi docki dl tap the multi id function button a function button 2 Lift desk phone 2 Lift desk phone function button handset and set handset and set aside aside 1 Dock the headset or End Tap the headset Dock the headset tap the multi call button on the desk or tap the multi function button phone function button 2 Return desk phone handset to receiver 21 6 2 SWITCHING BETWEEN PHONE AND HEADSET Switch from desk phone to headset 1 L
16. ift headset from docking cradle 2 Do not return desk phone handset to receiver as this will hang up the call Switch from headset to desk phone without Jabra Link or GN 1000 1 Lift desk phone handset 2 Dock headset or tap the multi function button Switch from headset to desk phone with Jabra Link or GN 1000 1 Lift desk phone handset 2 Refer to specific desk phone documentation In some cases a button must be pressed on the desk phone while in others the switch from handset to desk phone will be automatic 6 3 CONFERENCE CALL WITH MULTIPLE HEADSETS The Jabra PRO 920 is able to pair with four headsets in total for conferencing one primary and three secondary headsets Connect secondary headset 1 While the primary headset is undocked and on a call dock the secondary headset with the base hosting the call When the headsets are successfully paired a double tone will sound in the primary headset 2 Tap the multi function button on the primary headset to accept the secondary headset The audio is now shared between headsets Ending or leaving the conference The primary headset user can end the conference by hanging up on the call The call is ended for all headsets Guests can leave the conference by tapping the multi function on their headset or by docking the headset with the base The conference call is still active for the other headset s 22 7 ADVANCED JABRA PRO 920 FEATURES 7 1 SAFETONE AUDIO
17. ing in the headset for a clear dial tone rotate the switch from A to G 4 Determine the best switch position The dial tone should be strong clear and undistorted 5 When the clear dial tone is set press the headset button on the desk phone or return the desk phone handset to the receiver 4 2 SET THE MICROPHONE VOLUME 1 Put on the headset 2 Get a dial tone by pressing the headset button on the desk phone or by lifting the desk phone handset 3 Make a test call Call a friend or colleague to test your speaking volume Ensure the listener does not adjust their own volume 4 Adjust the microphone volume using the microphone volume buttons as illustrated if your speaking volume is too loud or too quiet for the listener 5 When the microphone volume is set end the call Note To reset the microphone volume to the factory default setting make a call and then press and hold both microphone volume buttons until a tone is played and then release the volume buttons 5 JABRA PRO 920 FEATURES 5 1 HEADSET MULTI FUNCTION BUTTON The multi function button can answer calls and end calls using a combination of taps double taps or presses Multi function button Double 0 Function Tap hold 1 3 tap seconds Answer incoming call v End current call Reject incoming call Y Put current call on hold and Y accept incoming call not supported by all phones
18. ing Jabra Control Center a component of Jabra PC Suite Jabra PC Suite can be downloaded from www jabra com setup NOTE To exit firmware update mode disconnect the service cable and unplug the Jabra PRO 920 from power to reboot 27 8 SUPPORT 8 1 FAQS AND TROUBLESHOOTING Q How do I pair my headset with the Jabra PRO 920 base A Dock the headset with the base to initiate pairing Pairing will occur automatically unless the base is currently linked with a primary headset a headset already paired with the base Alternatively you can force pair a new primary headset if there is currently a primary headset already paired with the base Q Can pair my headset directly with a third party DECT phone or base A No The headset can only be paired with a Jabra PRO 920 base Q Why doesn t my headset work with my desk phone A Check the following Ensure the headset battery is charged The keypad battery icon will be blinking green when charging or solid green when charged e Ensure the headset is in range of the base The range is up to 120 m depending on environment Ensure the headset and base are paired To initiate pairing dock the headset Q Why does nothing happen when try to use my desk phone A Ensure the base is powered on and check there is a dial tone Lift the desk phone handset or press the headset button on the desk phone to get a dial tone If there is no dial tone double check all cables have been corre
19. munications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help The user must place the base 8 20 cm or more from any personnel in order to comply with FCC RF exposure requirements Industry Canada Operation is subject to the following two conditions 1 This device may not cause interference and 2 This device must accept any interference including interference that may cause undesired operation of the device The term IC before the certification registration number only signifies that registration was performed based on a Declaration of Conformity indicating that Industry Canada technical specifications were met It does not imply that Industry Canada approved the equipment Patents and design registration pending international 33 A BRAND BY GNI Netcom 2013 GN Netcom A S All rights reserved Jabra is a registered trademark of GN Netcom
20. o indicate the settings are being copied and then will turn solid white when successfully copied to the new base 4 To copy the settings to multiple bases repeat step 3 5 When finished copying settings redock the headset with the original base primary base or press and hold the headset mute button until the headset LED flashes and then release 79 FORCED PAIRING PAIRING A NEW PRIMARY HEADSET It is possible to force the Jabra PRO 920 to pair with a new headset even when it is currently paired with another headset 1 Dock the new headset in the base 2 Press the multi function for 1 2 seconds The headset LED will begin to flash Forced pairing will take between 10 seconds 2 minutes 3 When paired successfully the battery indicator will turn green or red if the headset battery is low 7 10 UPDATE FIRMWARE AND HEADSET SETTINGS SERVICE CABLE It is possible to update the Jabra PRO 920 firmware and headset settings via Jabra Control Center by connecting the Jabra PRO 920 to a PC using the service cable optional accessory 1 Disconnect the Jabra PRO 920 from power 2 Connect the Jabra PRO 920 to any available USB port on the PC using the service cable optional accessory 3 Connect the Jabra PRO 920 to power and wait for the headset indicator to turn green When connected successfully the Jabra 920 base is put into firmware update mode It is now possible to update firmware and configure headset settings us
21. range a 6 Auto sleep QQ O Off default flash x5 mode 5 On 25 mm A Auto detect Remote call Default control sone ones CS GN1000 RHL none lt Q may not be 5 Jabra IQ flash x6 auto detected and will need ene to be manually O CS MSH configured A Optipoint flash x7 audio O On 3 End setup mode When finished simultaneously press and hold both headset volume buttons until the voice End prompt says Goodbye and then release the buttons setup The base will restart and update the settings indicated by the white battery icon on the base 7 7 HOW TO RESET ADVANCED SETTINGS e Put on the headset So e Simultaneously press and hold the mute button and both headset Reset volume buttons until the voice settings prompt says Factory default and then release the buttons The base will restart and reset the settings indicated by the white battery icon on the base 7 8 COPY SETTINGS TO MULTIPLE JABRA PRO 920 BASES Jabra PRO 920 settings can be manually copied onto other Jabra PRO 920 bases 1 Dock the headset in the base 2 Press and hold the headset mute button until the headset LED flashes and then release When the settings have successfully copied the headset LED will turn solid white 26 3 Undock the headset and dock in the new base to copy the settings to the new base The headset LED will flash 5 times t
22. ring the phone OPTION 4 Desk Phone without Headset Port This desk phone does not have a dedicated headset port 1 On the desk phone unplug the handset cable from the phone body 2 Connect the handset cable to the port marked amp on the base 3 Plug the supplied telephone cable into the port marked on the base 4 Connect the telephone cable into the handset port on the desk phone 3 3 CONNECT POWER SUPPLY TO BASE 1 Plug the power adapter into the port marked 2 on the base 2 Connect the power adapter to the mains power socket 34 DOCKIHE HEADSET Dock the headset with the base Dock the headset When docked correctly the headset battery will begin charging if needed Charge for 20 minutes or until the battery indicator on the base DD is steady green 4 CONFIGURING THE DESK PHONE AUDIO Due to the large range of desk phone brands models available a clear dial tone must be set before first time use of the Jabra PRO 920 Setting the clear dial tone will enable the Jabra PRO 920 to function correctly with your specific desk phone Additionally it is also important to set the microphone volume for optimal sound quality 41 SETA CLEAR DIAL TONE 1 Put on the headset 2 Press the headset button on the desk phone or lift the desk phone handset 3 Locate the clear dial tone switch on the back of the Jabra PRO 920 base as illustrated and while listen
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