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User Data Header (UDH) is a binary structure which may be present at the start of a short message in the Short Message Service in GSM.It does not contain any text, but it specifies how the message should be formatted and processed.
In the year 2002, 366 billion SMS text messages were sent globally, [50] a number that rose to 6.1 trillion (6.1 × 10 12) in 2010, [10] which is an average of 193,000 messages per second. The global average price for an SMS message is US$0.11, while mobile networks charge each other interconnect fees of at least US$0.04 when connecting between ...
In technical terms, the concatenated SMS could also be referred to as a PDU Mode SMS [dubious – discuss]. The number of parts that a multi-part or PDU mode SMS message may contain depends technically upon a header message but mostly upon the device sending or receiving the SMS and also upon the service provider.
An SMS center (SMSC) is responsible for handling the SMS operations of a wireless network. When an SMS message is sent from a mobile phone, it will first reach an SMS center. The SMS center then forwards the SMS message towards the destination. The main duty of an SMSC is to route SMS messages and regulate the process.
SMS Home Routing is a modification to the original GSM specifications that changed the way inbound (off-net) SMS messages are treated by mobile telecommunications networks. . Adopted by the 3GPP in 2007, Home Routing was devised to enable mobile networks to offer a full range of advanced services on both inbound and outbound SMS, giving more utility to phone users and enabling operators to ...
A direct-to-mobile gateway is a device that 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 unique identifier from the mobile phone's Subscriber Identity Module, or "SIM card".
USSD on a Sony Ericsson mobile phone (2005). Unstructured Supplementary Service Data (USSD), sometimes referred to as "quick codes" or "feature codes", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator's computers.
A SIM swap scam (also known as port-out scam, SIM splitting, [1] simjacking, and SIM swapping) [2] is a type of account takeover fraud that generally targets a weakness in two-factor authentication and two-step verification in which the second factor or step is a text message (SMS) or call placed to a mobile telephone.