Clarity c4210 User Manual

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A fully charged battery provides an average talk time 
of about four (4) hours, or standby time of about (8) 
days. Talk time and standby time may vary depending 
on operating conditions.

You can use this telephone hands-free when you 
install a 2.5mm headset (purchased separately). To 
install, plug the headset into the HEADSET JACK  
at the top of the handset. While in headset mode,  
the volume of headset is controlled by the tele-
phone and the handset’s earpiece and microphone 
are disconnected.

In the event you wish to purchase a headset for your 
C4210, please contact Plantronics at 1-800-544-4660 
for a location near you. We recommend using the 
Plantronics M110 or M130 headset.

You may choose to use the optional belt clip with 
your handset.

1.   To attach slide belt clip down onto grooves.  

 

 

Press the tabs on the belt clip into the slots  

 

to attach. 

2.   To remove, lift one side of the belt clip with  

 

 

your thumbnail and push back.

The handset has a special coil inside of it to couple 
the sound to hearing aids equipped with T-Switches/
T-Coils.

The C4210 uses a 3.6Volt 600mAh NiMH recharge-
able 3 cell (AAA Type) battery that is included with 
your unit. 

Handset Battery must be connected before  
beginning initial charging.

1.   Remove battery cover 
2.   Install new battery 
3.   Connect battery pack 
4.   Replace battery cover  
5.   Charge for 12 hours before first use

1.  Place the handset in the base. The  
 

CHARGE LED on the base will light RED.

2.  After the batteries are fully charged,  
 

check for dial tone by pressing TALK on  

 

the handset.

When the handset battery gets low, there will be 
two (2) beeps every thirty (30) seconds. If the bat-
tery becomes low while you are on a call, you will be 
disconnected after about two (2) minutes. Terminate 
the call and recharge the battery. To recharge the 
battery pack, place the handset in the base. 

1.  Make sure the contact points are touching  
 

and the CHARGE LED is lit.

2.  Be careful not to short battery with  
 

Conducting materials such as rings,  

 

bracelets and keys.

Battery 

Connector

Battery 

Pack Plug

Battery 

Compartment

Cover