SDS short data service
However, I can provide you with an explanation of a more commonly known service called SMS (Short Message Service), which is widely used for text messaging on mobile devices. SMS allows users to send short text messages, typically up to 160 characters in length, between mobile phones or other devices capable of receiving SMS messages.
SMS messages are transmitted over the signaling channels of the mobile network, allowing for near-instant delivery to the recipient. The service is widely supported by mobile network operators and is a standard feature on most mobile devices, including smartphones.
SMS has proven to be a versatile and widely adopted communication tool, providing a simple and reliable method for sending short text-based messages. It has been used for various purposes, including person-to-person communication, alerts and notifications, two-factor authentication, marketing campaigns, and more.