Mostly regular phones (nokia 1200s are ubiquitous) but especially in places like Kenya, smartphone penetration is beginning to increase quickly. SMS and USSD a

Mostly regular phones (nokia 1200s are ubiquitous) but especially in places like Kenya, smartphone penetration is beginning to increase quickly. SMS and USSD are generally most useful. WAP can be used, but penetration of WAP enabled phones is much lower. One thing that works at times when a WAP interface is required is to follow some sort of "kiosk" model where someone who has a WAP-enabled phone provides services for others without.