SMS is and will continue to be the most effective means of communication for years to come. The reasons for this are many, but the most prominent two are that it is the most ubiquitous means of communication, and is by far the cheapest.
SMS spam (sometimes called cell phone spam) is any junk message delivered to a mobile phone as text messaging through the short message service (SMS). Mobile phone spam is generally less pervasive than email spam; in 2010, around 90% of email was spam. The amount of mobile spam varies widely from region to region. In North America, less than 1% of SMS messages were spam in 2010, while in parts of Asia up to 30% of messages was spam.
Africa is the second largest mobile market in the world, second only to Asia. Moreover, it is deemed the fastest growing mobile market. Hence the potential for marketers and businesses to tap into this region is huge. In the passed five years, the growth of mobile phone users in Africa was a healthy 20% year on year. With 649 million mobile subscribers at the end of 2011, this figure is expected to increase to 735 million by the end of this year. There are two ways to protect against spam:
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