Panasonic KX-TG7511FX Operating Instructions Manual

Useful Information55*1 KX-TG7521Noise is heard, soundcuts in and out.L You are using the handset or base unit in an area withhigh electrical interference. Re-position the base unitand use the handset away from sources ofinterference.L Move closer to the base unit.L If you use a DSL/ADSL service, we recommendconnecting a DSL/ADSL filter between the base unitand the telephone line jack. Contact your DSL/ADSLprovider for details.L Unplug the base unit’s AC adaptor to reset the unit andturn off the handset. Reconnect the adaptor, turn onthe handset and try again.Sound quality seemsto be getting worse.L You have registered a handset that is notrecommended (page 5). The clearest sound quality isonly possible by registering the recommendedhandset.The handset does notring.L The ringer volume is turned off. Adjust ringer volume(page 26).L Night mode is turned on. Turn it off (page 30).The base unit does notring. *1L The ringer volume is turned off. Adjust ringer volume(page 26).I cannot make a call. L The dialling mode may be set incorrectly. Change thesetting (page 15).L The handset is too far from the base unit. Move closerand try again.L Another unit is in use. Wait and try again later.L Answering system is being used. *1 Wait and try againlater.L The key lock feature is turned on. Turn it off (page 20).Problem Cause/solutionTG7511_7521FX(e).book Page 55 Tuesday, March 9, 2010 3:22 PM