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					SMS gateway                                                                                                                1



   SMS gateway
   An SMS gateway is a way of sending a text message with or without using a mobile (cell) phone. Specifically, it is a
   device or service offering SMS transit by either transforming messages to mobile network traffic from other media
   or by allowing transmission or receipt of SMS messages with or without the use of a mobile phone. Typical use of a
   gateway would be to forward simple email to a mobile phone recipient. It can also be useful in developing web
   applications that we can interact with via SMS (Short Messaging Service).


   Technical
   Some SMS gateway providers can be classified as aggregators or SS7 providers. The aggregator model is based on
   multiple agreements with mobile carriers to exchange 2-way SMS traffic into and out of the operator's Short
   Message Service Centre (SMS-C), also known as "local termination model". Aggregators lack direct access into the
   SS7 protocol, which is the protocol where the SMS messages are exchanged. These providers have no visibility and
   control over the message delivery, being unable to offer delivery guarantees. SMS messages are delivered in the
   operator's SMS-C, but not the subscriber's handset.
   Another type of SMS gateway provider is based on SS7 connectivity to route SMS messages, also known as
   "international termination model". The advantage of this model is the ability to route data directly through SS7,
   which gives the provider total control and visibility of the complete path during the SMS routing. This means SMS
   messages can be sent directly to and from recipients without having to go through the SMS-C of other mobile
   operators. Therefore, it's possible to avoid delays and message losses, offering full delivery guarantees of messages
   and optimized routing.
   Several operators have true fixed-wire SMS services. These are based on extensions to the ETSI GSM SMS
   standards and allow fixed-fixed, fixed-mobile and mobile-fixed messaging. These use Frequency-shift keying to
   transfer the message between the terminal and the SMS-C. Terminals are usually DECT-based, but wired handsets
   and wired text-only (no voice) devices exist. Messages are received by the terminal recognising that the CLI is that
   of the SMS-C and going off-hook silently to receive the message.


   Implementations

   Direct To Mobile Gateway Appliance
   A Direct To Mobile Gateway is a device which has built-in wireless GSM connectivity. It allows SMS text messages
   to be sent and/or received by email, from web pages or from other software applications by acquiring a Subscriber
   Identity Module (SIM) . Direct To Mobile Gateways are different from SMS Aggregators because they are installed
   on an organization's own network and connect to a local mobile network. The connection to the mobile network is
   made by acquiring a Subscriber Identity Module (SIM) card from the mobile operator and installing this in the
   gateway. Typically Direct To Mobile Gateway appliances are used for low to medium volume messaging.


   Direct To SMSC Gateway
   A Direct To SMSC Gateway is a device which allows SMS text messages to be sent and/or received by email, from
   web pages or from other software applications. The Gateway connects directly to a Mobile Operator's SMSC via the
   Internet or direct leased line connections. It converts the message format into a format understood by the SMSC,
   typically this is the SMPP protocol. Direct To SMSC Gateways are used by SMS Aggregators to provide SMS
   services to their clients. Typically Direct To SMSC Gateways are used for high volume messaging and require a
   contract directly with the Mobile Operator..
SMS gateway                                                                                                                  2


   Microsoft Outlook
   Microsoft Outlook 2007 has native support for sending SMS messages worldwide via the Outlook Mobile Service.[1]
   There are also plug-ins or Microsoft Outlook that add this functionality.


   AOL Instant Messenger
   AOL Instant Messenger (AIM) version 5.2 and above has support for sending SMS messages for free.[2] Third-party
   client Pidgin also supports this functionality through the AIM protocol.[3]


   ICQ
   ICQ also has support for sending SMS messages for free.[4] Third-party client Pidgin also supports this functionality
   through the ICQ protocol since version 2.2.[5]


   SMS send platform
   Some software providers are proposing a SaaS ( Software as a Service ) solution to send SMS directly from an
   internet connected PC.


   Windows Live Messenger
   MSN Messenger (Windows Live Messenger) 7.0 and up have support for SMS messages.


   Yahoo! Messenger
   Yahoo! Messenger, accessible through a dedicated client application, or through a web site (mail.yahoo.com) have
   support for SMS messages.[6] Third-party client Pidgin also supports this functionality through the Yahoo! protocol
   since version 2.6.[7]


   References
   [1]   Outlook Mobile Service (http:/ / office. microsoft. com/ en-us/ outlook/ HA101078921033. aspx)
   [2]   Send SMS Text Messages From AIM (http:/ / www. tech-recipes. com/ rx/ 116/ send-sms-text-messages-from-aim/ )
   [3]   Can I send SMS messages? (http:/ / developer. pidgin. im/ wiki/ Protocol Specific Questions#CanIsendSMSmessages)
   [4]   ICQ Free SMS (http:/ / www. icq. com/ sms/ )
   [5]   Can I send SMS messages? (http:/ / developer. pidgin. im/ wiki/ Protocol Specific Questions#CanIsendSMSmessages1)
   [6]   Send text messages (SMS) to some countries from Yahoo (http:/ / messenger. yahoo. com/ features/ sms/ )
   [7]   Send SMS via Pidgin (http:/ / willysr. blogspot. com/ 2009/ 08/ send-sms-via-pidgin. html)



   External links
   • Google Answers: E-mail to a US mobile number. (http://answers.google.com/answers/threadview?id=361507)
   • LiveJournal.com: Send a Text Message: Service Providers (http://www.livejournal.com/tools/textmessage.
     bml?mode=details)
Article Sources and Contributors                                                                3



    Article Sources and Contributors
    SMS gateway  Source: http://en.wikipedia.org/w/index.php?oldid=446797578  Contributors: -




    License
    Creative Commons Attribution-Share Alike 3.0 Unported
    http:/ / creativecommons. org/ licenses/ by-sa/ 3. 0/

				
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