Avaya 3749 Guia Do Utilizador

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Use the DECT cordless telephones within the following temperature ranges:

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For 3740 telephone, from -10 °C to +55 °C (14 °F to 131 °F)

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For 3749 telephone, from -10 °C to +40 °C (14 °F to 104 °F)

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Avoid exposing the telephone to direct sunlight or close to other heat sources.

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Do not expose the telephone to open flame.

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Keep the telephone away from excessive heat and moisture.

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Avoid sudden temperature changes to prevent condensation in the telephone. It is 
recommended to put the telephone into an air tight plastic bag until the temperature is 
adjusted, for example, when entering or leaving a cold/heated building on a warm/cold 
day.

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Protect your telephone from aggressive liquids and vapors.

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If the telephone has been exposed for water or condense, remove the battery immediately 
and let it dry completely before re-inserting the battery.

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Keep the telephone away from strong electromagnetic fields.

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Do not place a cold telephone in a charger.

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Do not immerse the battery into water. This could short-circuit and damage the battery.

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Do not expose a battery to an open flame. This could cause the battery to explode.

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Do not allow the metal contacts on the battery to touch another metal object. This could 
short-circuit and damage the battery.

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Do not leave a battery where it could be subjected to extremely high temperatures, such 
as inside a car on a hot day.

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Use the Desktop Charger or the wall mounted Charging Rack for charging. Charge the 
battery for at least one hour the first time you use the battery. Note that the wall mounted 
charger with a battery pack adapter has to be used if the battery alone is to be charged.

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Do not charge a battery when the ambient room temperature is above 40 ºC or below 
+5 ºC (above 104 ºF or below 41 ºF).

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Do not attempt to take a battery apart.

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Do not disconnect the battery unless it needs to be replaced.

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Do power the telephone off before removing the battery.