An SMS gateway is a Web site that allow users to send SMS
messages from a Web browser to people within the cell served by that gateway.
An SMS gateway can also serve as an international gateway for users with roaming
capability, allowing SMS communication away from the home network.
SMS gateways solve a common telecommunications problem, that of different wireless telephony
providers using different or proprietary
communication protocols.
The gateway acts as a relay, translating one protocol into another. Wireless network operators use
SMS gateways to connect SMS centers (SMSCs). An SMSC
is the portion of a wireless network that handles SMS operations, such as routing, forwarding and
storing incoming text messages on their way to desired endpoints.
Along with many commercial software products, open source SMS
gateway software can be downloaded online. Kannel, written in C, can make connections to SMSCs, cellular
phones and GSM or GPRS modems. Kannel uses an
HTTP / HTTPS interface for sending
and receiving SMS messages.
This was last updated in July 2007
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