Useful Information27Making/answering callsPhonebookProblem Cause & solutionNoise is heard whiletalking.L If your unit is connected to a telephone line with DSLservice, we recommend connecting a noise filterbetween the unit and the telephone network (page 8).Contact your DSL provider for details.L If your unit is near noisy equipment such as computersor fans, you may not be able to hear easily the otherparty’s voice. Turn off noisy equipment on both parties.Short silences, echoes,or speech cuts occur.L At the beginning of a call, both parties should speakalternately. This enables the unit to adapt to itsenvironment and let both parties speak effectively.L Do not move the unit while it is in use.L Keep your hands away from the unit during calls.L Keep files, cups, coffee pots, etc., away from the unit.L The other party’s phone might not be full duplex. Forbest sound quality, the other party should use a handsetphone or full duplex speakerphone.L Use the unit in a quiet room.The other party’s voice ismuffled or sounds “in awell”.L Speak closer to the unit.L If your room has glazed windows, we recommend thatyou draw a curtain or pull a blind.I cannot make a call. L The dialling mode may be set incorrectly. Set the dialmode (page 10) to match the type of telephone serviceyou have (tone or pulse).I cannot redial bypressing {R}.L If the last number dialled was more than 48 digits long,the number will not be redialled correctly.L If you press {R} after you have entered the phonenumber, this button functions as the {P} button. Toredial, press {s}, then press {R}, or press {R},select desired phone number by pressing {<} or {>},then press {s} or {C} ({F3} key).Problem Cause & solutionI cannot store an item inthe phonebook.L You cannot store an item in the phonebook while theunit is in speakerphone mode, or while listening torecorded conversations.L Do not pause for over 1 minute while storing.While storing an item inthe phonebook, the unitstarts to ring.L A call is being received. Answer the call and start againfrom the beginning after a call is finished.E-TS730EX.book 27 ページ 2005年11月11日 金曜日 午前10時10分