[. . . ] u Maintain a distance of at least one metre between the telephone and radio equipment, e. g. u Do not install the telephone in dusty rooms as this can limit the service life of the telephone. u Furniture lacquer and polish can be adversely affected by contact with parts of the unit (e. g. [. . . ] Do not hang up the handset. Gigaset DA510 /IM1 en / A30054-M6530-R101-3-7W19 / DA510_en. fm / 17. 01. 2012 6 en If the keylock is activated, the G key will flash with a rapid doubleflash when you pick up the handset. ~ Dial the number. Activating direct calling Lift the handset, press the set key. When you pick up the handset, the direct call key lights up. cK Emergency calls Two emergency phone numbers (110, 112) are preset in your phone and cannot be changed. You can programme a third emergency number with up to 32 digits yourself. Emergency numbers can also be used when the keylock is activated. Programming an emergency number Deactivating direct calling Lift the handset, press the set key. Direct calling is deactivated. cK ~ cK N5 K& cK Lift the handset, press the set key. Press the set key, hang up the handset. Blocking und unblocking numbers You can block phone calls to specific dialling codes (e. g. You can block up to 3 numbers. Deleting the emergency number Lift the handset, press the set key. The emergency number is deleted. Blocking numbers cK Direct calling (baby call) If direct calling is activated, you can dial the stored number by pressing any key (except for the set key K ). NL /2/3 Lift the handset, press the set key. Press a number key 1, 2 or 3 under which you want to store a blocked dialling code. Press the set key, hang up the handset. ~ K& Gigaset DA510 /IM1 en / A30054-M6530-R101-3-7W19 / DA510_en. fm / 17. 01. 2012 7 en Unblocking numbers To unblock the numbers: c K Lift the handset, press the set key. /2/3 Press a number key 1, 2 or 3 under which the number you want to unblock is stored. K & Press the set key, hang up the handset. Changing the dialling mode cK # /2 K& Lift the handset, press the set key. Press the set key, hang up the handset. Changing the flash time You can change the flash time if the dialling mode is set to tone dialling (see above). c K Lift the handset, press the set key. Operation on a PABX Special functions/Recall key During an external call, you can make an enquiry or forward the call. To set the recall key, the telephone’s flash time must be set consistent with your PABX. Please refer to the operating instructions for your PABX. O5 Q . . . [. . . ] For more detailed information about disposal of your old appliance, please contact your local council refuse centre or the original supplier of the product. Questions and answers You lift the handset but you hear no dialling tone: Is the connecting lead correctly plugged into the telephone and the telephone socket?The dialling tone is audible but the telephone will not dial: The connection is OK. Regular pulse noises can be heard during a call: The connection is receiving metering pulses from the exchange, which the telephone cannot interpret. [. . . ]