SMS Technology
This page provides you with a brief explanation
of the basics of the SMS technology along with a fact sheet,
as well as links to pages detailing the technology.
The SMS technology was created by GSM pioneers in
Europe. The standardization process is led by the
European Telecommunications Standards Institute (ETSI). The SMS technology was
created to provide an infrastructure for the transportation of short
messages containing a maximum of 140 bytes (8 bit objects) of useful
data in mobile telecommunication networks. The transportation is done in the GSM
signaling path in traditional GSM networks, and as GPRS packets in
GPRS networks. Messages are composed using the PDU specification. An SMS is
a binary string containing all the necessary information to form the
message header needed for transportation and the message body containing the
payload. The basic addressing scheme of SMS messages are mobile telephone
numbers called MSISDN.
SMS technology fact
sheet:
| Standard: |
GSM (ETS 03.40) |
| Transport technology: |
GSM Signaling Path, GPRS |
| Transport protocol: |
Short Message Protocol |
| Addressing scheme: |
MSISDN |
| Message description language: |
SMS PDU |
| User data length: |
140 byte (Concatenated messages can exceed this size) |
| Basic character set: |
7-bit SMS, 8-bit SMS, UCS2 |
On the Basic Concepts page you
can read about the roles of the different SMS messaging entities, illustrated with figures depicting
SMS messaging using GSM and IP connection.
On the IP SMS technology page you
can read about the convenience of connecting to the Short Message Service Center over the Internet,
and you are provided with links to pages detailing the most common IP SMS protocols.
On the GSM SMS Technology page you can read about SMS messaging using a GSM device (modem or phone),
and you can find links to pages detailing the different ways of connecting the GSM device to
the computer.
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