Direct Distance Dialing

Direct Distance Dialing (DDD) or direct dial is a telecommunications term for a network-provided service feature in which a call originator may, without operator assistance, call any other user outside the local calling area. DDD requires more digits in the number dialed than are required for calling within the local area or area code. DDD also extends beyond the boundaries of national public telephone network, in which case it is called International Direct Distance Dialing (IDDD).
See more at Wikipedia.org...

izravno međugradsko biranje  

izravno daljinsko biranje  

کامپيوتر : شماره گيرى فاصله مستقيم
 کلمات مرتبط(3) 

کلمات مرتبط(direct distance dialing):



بازگشت به واژه direct distance dialing


dialing 
direct 
 distance 

direct distance dialling 远距离直拨电话

Selbstwählferndienst