Энэ нь Link Таны хэл дээр байхгүй байгаа, Нь харах: English (en),
Эсвэл Google Translate ашиглах:  

http://www.appropedia.org/Mobile_phones

Mobile phones are a valuable communication tool with many applications in development, with benefits for public health and livelihoods as well as in personal communication.

Especially text message services are an important service used in developing countries