Abbreviated dialing

Abbreviated dialing (This is not ADN File of GSM, This is ECC file of GSM) is the use of a very short telephone number to reach public services. The purpose of such numbers is to be universal, short, and easy to remember. Typically they are two or three digits.

Abbreviated dialing

Abbreviated dialing (This is not ADN File of GSM, This is ECC file of GSM) is the use of a very short telephone number to reach public services. The purpose of such numbers is to be universal, short, and easy to remember. Typically they are two or three digits.