Short Message Service (SMS) is a service available on mobile phones (mobile cells) which allows digital sending short messages (up to 160 characters).
SMS History:
SMS is the delivery of alphanumeric messages to mobile phones over wireless networks. The concept of SMS was invented by Engr Finn Matti Makkonenh in the mid of 1980's. SMS was originally designed as part of the GSM (Global System for Mobile communication). But now, it is available in a wide range of networks, including networks 3G. SMS first appeared in Europe in 1991 as part of the Global System for Mobile Communications (GSM) Phase 1 standard.
Benefits of Sending SMS:
SMS has a number of benefits, which include:
SMS Architecture Elements:
- Guaranteed delivery of notifications and alerts to single or multiple users.
- Increased user productivity through instant delivery of notifications and alerts.
- Low cost and reliable communication mechanism for information delivery.
- Integration with Internet-based applications.
- Another service and source of revenue for service providers.
- Very possible replacement of existing two-way paging.
The following is the SMS architure elements of SMS. it will really helps you to understand the SMS sending procedure.
SMS Infrastructure of Network:
- MS -- Mobile station, a wireless terminal that is capable of receiving and sending alphanumeric messages.
- SME -- Short message entity, which can be a device like a mobile phone, or an application like e-mail that is capable of receiving and sending alphanumeric messages.
- SMSC -- Short message service center, responsible for storing and forwarding messages to and from the mobile station.
- STP -- Single transfer point, which allows for interconnections over signaling system 7 (SS7) links and multiple network elements. For more information on SS7 links, see the Resources section.
- HLR -- A database in the network that holds information like subscriber and service profile, as well as subscriber. Routing information for the subscriber is also stored in the HLR, which is requested by the SMSC.
- MSC -- Mobile switching service center. The job of the mobile switching service center is to switch connections between mobile stations, or between mobile stations and the fixed network.
- BS -- Base station, which relays information to and from the mobile station to the
- MSC. The BS consists of controllers and transceiver stations, also known as "cells."
- MS -- Mobile station, a wireless terminal that is capable of receiving and sending alphanumeric messages.
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| SMS Network Infrastructure Click on Image to Enlarge |
