Limited Warranty
• This warranty covers defects in materials and workmanship of products manufactured,
sold or certified by Plantronics which were purchased and used in the United States.
• This warranty lasts for one year from the date of purchase of the products.
• This warranty extends to you only if you are the end user with the original purchase
receipt.
• We will, at our option, repair or replace the products that do not conform to the
warranty. We may use functionally equivalent reconditioned/refurbished/remanufactured/
pre-owned or new products or parts.
• To obtain service in the U.S., contact Plantronics at (800) 544-4660 ext. 5538.
• THIS IS PLANTRONICS’ COMPLETE WARRANTY FOR THE PRODUCTS.
• This warranty gives you specific legal rights, and you may also have other rights that
vary from state to state. Please contact your dealer or our service center for the full
details of our limited warranty, including items not covered by this limited warranty.
USER GUIDE_
CS70
WIRELESS OFFICE HEADSET SYSTEM
1. Replace voice tube every 6-9 months.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Unplug the unit from the telephone and the AC charger from the power source
before cleaning.
3. Clean the equipment with a damp (not wet) cloth.
4. Do not use solvents or other cleaning agents.
The Plantronics Technical Assistance Center is ready to assist you! Dial (800) 544-4660 ext.
SOUND INNOVATION
Plantronics Inc.
345 Encinal Street
Santa Cruz, CA 95060 USA
Tel: (800) 544-4660
© 2006 Plantronics, Inc. All rights reserved. Plantronics, the logo design, IntelliStand, Plantronics Sound
Innovation, and the voice tube clear color trade dress are trademarks or registered trademarks of
Plantronics, Inc. All other trademarks are the property of their respective owners.
Patents U.S. 5,210,791: 6,735,453; 6,923,688; D469,756; Australia 147229; 303053; EM 293964-0003;
France 651,857-651,865; Germany 40108524.4; GB Regd.Des.No. 2104923 and Patents Pending.
Printed in China.
72535-01 (01.06)
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Base - Top View
Base - Bottom View
Telephone Handset
Jack
Front:
Indicator Lights
Talking (Green)
Power (Red)
Handset Lifter Jack
AC Charging Jack
Telephone Cord Jack
Charging (Amber)
Speaking Volume
Major Adjust
Charging Cradle
Headset
Telephone
Configuration Dial
Listening Volume/Mute
Call Control Button
Talk Indicator Light
Rear:
Speaking Volume
Minor Adjust
IntelliStand™
Voice Tube
On/Off Switch
(to automate
call control button)
Handset Lifter
Listening Volume
Major Adjust
Handset Lifter Arm
Power Cord
Telephone Cord
Ringer Microphone
Jack (remove cover)
Height Switch
Accessory Jack
5
4
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Base - Bottom View
1
2
3A
4A
Unplug the handset cord from phone.
Plug the phone cord that is connected to
the CS70 base into the handset jack on
the phone.
!
v
9
CAUTION: Your phone may have two similar
jacks. Put the cord only in the jack from
which the handset came.
4
3
Plug the handset cord into the
handset jack in the base.
Push in until it clicks.
Plug the AC charger into the
base’s AC charging jack.
Push in firmly.
Complete
Plug the AC charger into an outlet
and into the base’s AC charging jack.
Plug the handset cord into the handset
jack in the bottom of the base.
See step
3A for detailed location.
See step 4A for detailed location.
NOTE: The access to the handset jack is
fairly small. If you have large hands you may
want to ask someone with smaller fingers to
do this step.
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1. Slide headset into charging cradle
so that microphone boom is on the
right.
2. Gently press down on the headset to
ensure that headset is in correct
position. Amber charge indicator
light on base will flash while
1
2
1
charging and will change to solid
amber when fully charged.
• 20 minutes = minimum charge
to continue setup
• 3 hours = full charge
2
1. Plug handset lifter power cord into handset lifter jack on base. Push firmly into base.
2. Position handset lifter under the handset on your phone. Verify that the lifter is
located on top of the telephone speaker. If not, you will need to attach the ringer
microphone as described on page 22.
NOTE: Remove only a tiny piece of mounting tape backing to temporarily stick lifter into
position; you may need to move it later.
Set the IntelliStand switch to
Intellistand off (–) if you
want to control the handset
IntelliStand™
off
3
1
2
”
lifter with the call control
button on your headset.
IntelliStand
on
6
”
Set the Intellistand switch to
Intellistand on (=) if you want
the handset to automatically
pick up when you take the
headset off the charging cradle.
The minimum recommended separation distance is shown above.
IMPORTANT: Incorrect positioning can cause noise and interference problems.
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1
2
3
2
1
Enable
Disable
1. Slide the headset over and behind your ear.
1. To pair another headset to the same base, you must first enable the multi-shift
pairing feature. Long press (5 sec.) the speaking volume minor adjust up button on
back of base until the power indicator light flashes.
2. Rotate and press gently towards your ear for a snug fit.
3. Rotate voice tube microphone until it is pointed towards your chin.
2. Place a charged headset in charging cradle and red indicator light on base will flash
for 2 seconds if the multi-shift pairing feature is enabled. Within 10 seconds of
doing so, press either the "+" or "-" listening volume button for 3 seconds until the
headset talk indicator lights to indicate pairing mode, and goes out after successful
pairing. Repeat steps 1 and 2 if headset and base do not link when call control
button is pressed.
NOTE: Only the last paired headset will work with the base. You must NOT be in talk mode
(i.e. not on a call) when enabling or disabling this feature.
To disable the multi-shift pairing feature, long press (5 sec.) the speaking volume
minor adjust down button until the power indicator light flashes.
11
10
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2
1
1
2
To first test proper set up of the handset lifter:
1. Press the call control button on headset to activate handset lifter and lift handset
from phone. Dial tone should sound if the handset is raised high enough.
2. If no dial tone, adjust handset lifter height switch or reposition lifter under handset.
If you still do not hear a dial tone, you may need to insert extender arm (see page
22) or check compatibility (page 14).
To make a call:
1. Take your handset off-hook. Dial tone should sound through handset (if not, check
compatibility—see page 14).
2. Press the call control button on the headset. The talk indicator lights on both the base
and the headset should go on, indicating a successful link. Dial tone should sound
through headset. Dial using the telephone keypad.
Use mounting tape to secure handset lifter in position.
To answer a call:
2
1. Take the handset off-hook.
2. Press the call control button on the headset to answer a call.
To end a call, press the call control button on the headset, then hang up the handset.
NOTE: If either you or the recipient have trouble hearing, please check compatibility
(page 14).
1
To make/answer a call:
1. Press the call control button to raise the handset lifter.
2. Use the telephone keypad to dial the number.
To end a call:
Press the call control button to lower the handset lifter. (Phone will hang up).
NOTE: If either you or the recipient have trouble hearing, please check compatibility (page 14).
13
12
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NOTE: Be sure to set your telephone’s volume at the mid range before adjusting the
CS70 volume.
NOTE: The compatibility setting of “1” is set at the factory to work with most phones.
However, if you do not hear a dial tone, if either you or the recipient is having trouble
hearing, or if you experience buzzing/hissing, please follow the directions below.
Minor Adjust
Major Adjust
Push on the “+” and “–” buttons to adjust
listening volume in minor incremental
adjustments.
Use listening volume major adjust
control on the back of the base for
large incremental adjustments.
NOTE: You must be in talk mode (i.e. on a
call) to adjust.
NOTE: 1 is the loudest setting.
4 is the lowest setting.
If you cannot hear a dial tone through your headset, use a coin or small screwdriver to
turn the telephone configuration dial until you can. Make sure that a number is aligned
with the position indicator.
Place a call to someone you know. While speaking, turn the configuration dial through
the four positions. Select the position that provides the best sound quality for both you
and the recipient.
15
14
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Minor Adjust
Major Adjust
Use the speaking volume major adjust
control on the bottom of the base for
large incremental adjustments.
Use the speaking volume minor adjust
control on the back of the base for
minor incremental adjustments.
Feature
Action
Tone
NOTE: A is the lowest setting.
B is the most common setting.
D is the loudest setting.
NOTE: You must be in talk mode (i.e. on a
call) to adjust.
Listening volume
minor adjust
Press + to increase
Ascending/descending
tones, 2 tones at limit
or to decrease
–
Long press key
3 mid tones = Mute
3 low tones = Unmute
Mute
–
Headset Mute
(3 seconds)
NOTE: Tones repeat every
30 seconds when muted.
To mute headset, long press the volume
down button (3 seconds). Press again to
unmute.
Answering/
ending calls
Short press call
control button
Mid tone
Talk indicator light on base will flash
while muted.
Low battery
warning
Replace headset in
charging cradle
1 tone every 10
seconds
You will hear 3 rapid beeps every 30
seconds to indicate that mute is on.
2 tones
Out of range
Move closer to base
N/A
N/A
warning — when
on active call
Incoming call
notification*
Press call control
button to answer call
3 repetitive tones
* Only works when using optional Handset Lifter.
17
16
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Problem
Solution
Indicator Lights
Talking/Muted (Green)
Power (Red)
I plugged everything in but
the lights won’t come on.
• Check that the AC charger jack is connected to the base unit.
• Check that the AC charger is securely connected to a working
wall outlet.
• Check that the AC charger is the model supplied by Plantronics.
Charging (Amber)
• Check that the phone is connected to the base unit’s phone cord
My headset does not work
with the base unit.
jack and it is pushed in firmly.
Action
Light
• Check that the phone handset is connected to the base’s phone
handset jack and it is pushed in firmly.
• Headset may be out of range of the base. Move closer to base
unit until headset is within range. Range varies with office
environment.
• Headset battery is dead. Recharge the battery by placing the
headset in the headset charging cradle or by using the AC
charger supplied. See page 9.
• Listening volume too low. Press the volume up button on the
headset. If the volume is still too low, select another listening
volume major adjust switch setting. See page 15.
• Incorrect configuration dial setting for your phone. Try other
phone configuration dial settings on the base unit. Ensure the
selected number is in line with the position indicator. See page 14.
Charging
Fully Charged
Power
Flashes amber
Solid amber
Solid red
Talking
Solid green
Flashes green
Muted
• You may have to resubscribe your headset with the base. See
page 11.
• Headset is muted. Long press (3 sec.) the volume down button
on headset to unmute the microphone. See page 16.
Callers cannot hear me.
• Improper positioning of voice tube. Try various other positions.
• Voice tube may be clogged. Remove voice tube and test to see if
callers can hear you without it. If they can, then replace the
clogged voice tube. See page 18.
• Speaking volume is too low. Increase the speaking volume by
adjusting the speaking volume minor adjust buttons on the base
unit as described on page 16. If the volume is still too low, select
another speaking volume major adjust setting as described on
page 16.
2
1
• Incorrect configuration dial setting for your phone. Try other
phone configuration dial settings on the base unit. Ensure the
selected number is in line with the position indicator. See page 14.
I can hear a dial tone in
more than one
configuration position.
Phone will work in more than one configuration dial position.
Use the position that sounds best to you and the person you call.
I cannot hear a dial tone
in any configuration
position.
• Check that the phone is connected to the base’s phone
cord jack. See page 6.
• Check that the phone handset is connected to the base’s
phone handset jack. See page 6.
I cannot hear
caller/dial tone.
• Check that all cords and jacks are connected correctly.
• Check that the base has power (red indicator light) and the
headset battery is fully charged.
To replace voice tube:
• Try other phone configuration dial settings on the base unit.
Ensure the selected number is in line with the position indicator.
See page 14.
1. Slide old voice tube out.
2. Slide in spare voice tube.
• Ensure you are in headset mode. Press the call control button to
select correct mode. The talk indicator light on the base is green.
19
18
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Problem
Solution
The headset and base unit are supplied subscribed to each other. However, if you wish to
use a replacement headset with the base unit, then the units must be re-subscribed. To
do so, please follow the instructions on page 11 for Multi-Shift Pairing.
Sound in handset is
distorted/hear echo in
handset.
• Reduce speaking volume by changing the speaking volume
major adjust switch setting. See page 16.
• Point microphone towards your chin.
• Listening volume too high on phone. If your phone has a
handset volume control, lower this until the distortion
disappears.
• If the distortion is still present, lower the listening volume
adjust button on the headset. If the distortion persists,
select another listening volume major adjust switch setting.
See page 15.
• Base is too close to computer or phone. See page 9 for
proper positioning.
To recover from some fault conditions (refer to the Troubleshooting Section), you may need
to perform a system reset. To perform the system reset, follow this procedure:
• System needs to be reset. Perform system reset as
described on page 21.
Speaking volume is too high. Lower the speaking volume by
adjusting the speaking volume minor adjust buttons on the
base. If the volume is still too high, select another speaking
volume major adjust setting. See page 16.
I can hear too much
background conversation,
noise or sidetone.
1
1
3
People I talk to can hear a
buzz in the background.
• Move the CS70 base further away from your phone.
• AC charger is plugged into a power strip. Plug the AC charger
into the wall directly.
• Picking up another radio frequency. Call the Plantronics
Technical Assistance Center for an RF filter.
1
2
4
4
Battery talk time performance
is significantly degraded even
after a full recharge.
Battery is going bad. Replace the battery with a new battery
pack. See page 21.
The call is dropped. (Talk
indicator on the headset and
base will not be illuminated.)
Headset lost subscription. Try to reset the system. See page
21. If this does not work, try the resubscription procedure
on page 11.
1. Simultaneously press the call control
3. Disconnect the AC charger from the
AC charging jack for 5 seconds.
4. Reconnect.
button and both the " " and " " volume
+
–
buttons for 5 seconds. When the talk
indicator light on the headset blinks,
release all buttons.
I hear static that does not
allow me to communicate.
• Link to headset is lost. Try to reestablish a link by pressing
the headset talk button.
• Unplug the AC charger from the base for 5 seconds, then
plug back in.
The system reset operation is complete.
2. Press the call control button again.
The talk indicator light will again blink
briefly to indicate the headset is back
to normal operation mode.
• Reset the whole system as described on page 21.
• One beep every 10 seconds is caused by a low battery
warning. Recharge battery by returning it to the base charge
cradle for one to three hours until charge light stays lit or
quits blinking.
I hear beeps in the headset.
• Two beeps is an out of range warning. Move closer to the base.
• Three rapid beeps every 30 seconds indicates your mute is
on. Press the mute button once to turn mute off.
• When an optional lifter is connected, three repetitive beeps
indicate a call is coming into the headset. Press the call
control button on the headset to answer the call.
The custom battery supplied should last 2–3 years. When talk time decreases
significantly, you should replace the battery. Call Plantronics at (800) 544-4660 ext.
5538 for information on sending back to factory to install new battery.
Handset lifter is installed
but does not lift handset.
Be sure the handset lifter power cord is firmly pushed into
the handset lifter jack on the base.
My handset lifter operates
every time I remove or
replace my headset in the
base unit.
IntelliStand is enabled. To disable the handset lifter, move
the IntelliStand switch to position
.
21
20
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Extender Arm
Stabilizers
This device complies with Part 15 of the 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.
2
1
2
This equipment has been tested and found to comply with the limits for a Class B digital device, pur-
suant to Part 15 of the 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 communications. 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 radio or television off and on, the user is
encouraged to try to correct interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on another circuit.
4. Consult the dealer or an experienced radio/TV technician for help.
Use extender arm when the handset lifter needs additional stability lifting and
returning to cradle.
1. Slide extender arm onto lifter.
2. Stabilizers can be shifted left and right. Position stabilizers on outsides of handset
to gently grip the phone.
FCC REGISTRATION INFORMATION — Part 68
This equipment complies with Part 68 of the FCC rules and the requirements adopted by ACTA. On
the exterior of this equipment is a label that contains a product identifier in the format
US:AAAEQ##TXXXX. If requested, this information must be provided to your telephone company.
A plug and jack used to connect this equipment to the premises wiring and telephone network must
comply with the applicable FCC Part 68 rules and requirements adopted by ACTA. A compliant
telephone cord and modular plug is provided with this product. It is designed to be connected to a
compatible jack that is also compliant. See installation instructions for details.
Ringer Microphone
The REN is useful to determine the quantity of devices you may connect to your telephone line.
Excessive RENs on a telephone line may result in the devices not ringing in response to an incoming
call. In most, but not all areas, the sum of the RENs should not exceed five (5.0). To be certain of the
number of devices you may connect to your line, as determined by the REN, contact your local
telephone company. For product approved after July 23, 2001, the REN for this product is part of the
product identifier that has the format US:AAAEQ##TXXXX. The digits represented by ### are the
REN without the decimal point. (For example, 03 represents a REN of 0.3.) For earlier producers, the
REN is separately shown on the label.
3
1
If this telephone equipment causes harm to the telephone network, the telephone company will notify
you in advance that temporary discontinuance of service may be required. But if advance notice isn’t
practical, the telephone company will notify the customer as soon as possible. Also, you will be
advised of your right to file a complaint with the FCC if you believe it is necessary.
2
The telephone company may make changes in its facilities, equipment, operations, or procedures
that could affect the proper functioning of your equipment. If they do, you will be notified in advance
in order for you to make necessary modifications to maintain uninterrupted service.
If trouble is experienced with this unit, for repair or warranty information, please contact customer
service at (800) 544-4660. If the equipment is causing harm to the network, the telephone company
may request that you disconnect the equipment until the problem is resolved.
Use ringer microphone when the telephone speaker is not
located directly under the handset.
1. Remove cover from ringer microphone jack on back of lifter.
2. Connect ringer microphone plug.
DO NOT DISASSEMBLE THIS EQUIPMENT: it does not contain any user serviceable components.
3. Place ringer microphone over phone speaker. Remove adhesive tape and attach.
We recommend the installation of an AC surge arrester in the AC outlet to which this equipment is
connected. Telephone companies report that electrical surges, typically lighting transients, are very
destructive to customer terminal equipment connected to AC power sources.
For Nortel i2004 phones only
The internal wireless radio operates within the guidelines found in radio frequency safety standards and
recommendations, which reflect the consensus of the scientific community. Independent studies have
information.
NOTE: Modifications not expressly approved by Plantronics, Inc. could void the user's authority to
operate the equipment.
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