Communication is one of the most talked topics in today’s business world. Among the different
modes of communication, mobile phone is becoming reliable and efficient vehicle to reach from
one person to another. This is the prevailing device through which we can now express ourselves,
get our work done and share our joys and hurts. This picture was not seen almost two decades
back when most of the people of this country were solely dependent on BTTB (Bangladesh
telegraph and telephone board).