Have you been pestered by MTN Callertunes ringing to your callers even when you have not subscribed for such? Or do you just want to cancel your caller tune subscription? Here is the solution: Simply text Cancel to 4100. When your paid MTN callertune service expires, MTN will play their (sometimes annoying) free jingles to your callers instead. This procedure will also remove such from your line. With that being said, feel free to check our and section. Also tell your friends about this cool website Bestmobs.com. Use the share buttons below to help share the message.