When you talk of the dirtiest city in Nigeria, i think it is ABA

For you to make conference calls,
1.Put the first call on hold.[go to menu,scroll down to 'call hold']
2.make the 2nd call if sucessfull,then go to menu
3. look for conference call on the menu.
4.enter the conference call.
5.this will atomatically connect the two calls together.
6.you can put a max of 5 people in conference call.
CHAO, ;.

i checked my WAEC result and 2  subjects i.e mathematics and chemistry beared outstanding,
please advice me on this issue,i am sober
thanks