voice calls. The combined effect of audio / VoIP conversion delay and IP routing delay can cause the
echo cancellation time of
³
64 ms to be required.
PTC200 6.11.1 (3) All Customer Equipment (fail safe requirements)
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Under power failure conditions this appliance may not operate. Please ensure that a separate
telephone, not dependent on local power, is available for emergency use.
For Users in Australia and the United Kingdom
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This unit is capable of being used in conjunction with hearing aids fitted with inductive coil
pick-ups. The handset should be held as for normal conversation. For operation, the hearing aid
should be set to its "T" position or as directed in the operating instructions for the hearing aid.
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This unit is designed to aid the visually handicapped to locate dial keys and buttons.
For Users in the United Kingdom
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This unit is designed to be installed under controlled conditions of ambient temperature and a relative humidity.
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Avoid installing the unit in damp or humid environments, such as bathrooms or swimming pools.
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999 and 112 can be dialled on the product after accessing the outside line for the purpose of making outgoing calls to
the BT emergency (999) and (112) services.
For users in Singapore only
For users in Taiwan only
For Best Performance
Operating Range
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The range of operation depends on the topography of your office, weather, or usage conditions,
because signals are transmitted between the CS and the handset by radio waves.
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Normally, you get greater range outdoors than indoors. If there are obstacles such as walls, noise may
interfere with your telephone calls. In particular, high metal shelves or reinforced concrete walls will
restrict your operating range.
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A handset may not work when it is too far from the CS depending on the structure of the building.
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We strongly suggest you hold the bottom half of the handset to ensure better call quality. Because, the
antenna is located in the upper half of the handset.
Noise
Occasional noise or interference may occur due to electromagnetic radiation from objects such as
refrigerators, microwave ovens, faxes, TVs, radios, or personal computers. If noise disturbs your
telephone calls, keep the handset away from these electrical appliances.
10
Important Information
