If you make the selection without "TELLING the phone" that you are about to make a selection, it will not understand the selection and will hang you up.

Before you make your selection you have to prompt the system that you are about to send an answer. Each handset manufacturer displays the instruction on the phone above the relevant activation key. For example on a Nokia phone, PRESS the "ANSWER" key and then input your selection. The "ANSWER" key will now be labelled "SEND". 

Press the "SEND" key to complete your CHOICE.

SEE different handset manufacturer instructions. 

If you make the selection without "telling the phone" that you are about to make a selection, it will not understand the selection and will hang you up.

Before you make your selection you have to prompt the system that you are about to send an answer. Each handset manufacturer displays the instruction on the phone above the relevant activation key. For example on a Nokia phone, press the "ANSWER" key and then input your selection. The "ANSWER" key will now be labelled "SEND". 

Press the "SEND" key to complete your choice.

See different handset manufacturer instructions.