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SMS Solutions |
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SMS gateway is a device or service offering SMS transit, transforming messages to mobile network traffic from other media, or vice versa, 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 e-mail to a mobile phone recipient. |
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Technical |
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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. |
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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. |
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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 SMSC. 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 SMSC and going off-hook silently to receive the message. |
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Implementations |
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Direct To Mobile Gateway Appliance |
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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. Direct To Mobile Gateways are different to 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. |
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Direct To SMSC Gateway |
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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. Direct To Mobile Gateways are different to 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 |
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Monitoring |
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Software was recently used to great effect as a monitoring tool during the Nigerian elections, and also won the WSIS "ICT Success Story of the Month" for April 2007 |
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