Panasonic EASA-PHONE KX-T2315 Operating Instructions Manual page 15

Press the SP-PHONE button.
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The SP-PHONE indicator lights,
Dial the telephone number.
Speak to the other party.
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You can also switch to the handset at
anytime by lifting the handset.
When finished, Press the
SP-PHONE button again.
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The SP-PHONE indicator light goes out
n When the other party finds it difficult to hear your voice:
Lower the sound level using the Speaker Volume Control or speak louder.
n Absorbing echoes:
Use in a room which has curtains or carpeting.
n To avoid lost or broken conversation:
If you and caller speak at the same time, parts of your conversation will be
lost. To avoid this, speak alternately.
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