How long can a long message be?
If the long message is being split using the 'SMS Numbering' method, then the total number of SMS which can be used to form a long message is restricted to a total of 9 SMS.
If the long message is being split using any other method, then the total number of SMS which can be used to form a long message is restricted to a total of 255 SMS.
However, we do not recommend customers to split long messages into more than two or three SMS because mobile users like their messages to be short and some handset memories are limited and may not be able to simultaneously hold each part of the long message.