VTech 18150 TWIN

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CALL wAITING
If you subscribe to call waiting service from your
telephone service provider, you hear a tone if someone
calls while you are already on a call.
Refer to your Telephone Service Provider regarding
operation of Call Waiting
VOLUME BOOsT
Use the Volume Boost feature to enhance the clarity
and loudness of the voice on handset earpiece.
To turn on Volume Boost on the handset:
While you are on a call using the handset earpiece,
press OTB / VB on the handset. The handset displays
Boost on.
Press OTB / VB again to turn off. The handset
displays Boost off.
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