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Contents: MMS vs SMS. Definitions. SMS is the abbreviation for Short Message Service and is the text communication service component of a phone or mobile communication system, using standardized communications protocols that allow the exchange of short text messages between fixed line or mobile phone devices.
1. SMS. SMS stands for Short Message Service and is the most widely used type of text messaging. With a SMS, you can send a message of up to 160 characters to another device. Longer messages can be split up into several parts. Most cell phones support this type of text messaging, and sending a SMS is usually very cheap. SMSs can also be used to access various services from a portable device, such as Google and MSN. Spam sent as SMS is also becoming more common.