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An alternative to inbound SMS is based on long numbers (international mobile number format, e.g., +44 7624 805000, or geographic numbers that can handle voice and SMS, e.g., 01133203040 [47]), which can be used in place of short codes or premium-rated short messages for SMS reception in several applications, such as TV voting, [50] product ...
999 is the official emergency number for the United Kingdom, but calls are also accepted on the European Union emergency number, 112. All calls are answered by 999 operators, and are always free. [ 2] Approximately 35 million 999/112 calls are made in the UK each year, with 74% from mobiles and 26% from landlines in 2022.
Similar do not call lists are implemented in other countries, such as the National Do Not Call Registry in the United States, and the Do Not Call Register in Australia. The Telephone Preference Service (TPS) is the only such register that is enforced by law in the UK. TPS was created in 1996 by the Data & Marketing Association (DMA).
Free to call from landline, and was up to 40p per minute from mobile, until July 2015 when calls to 080 numbers from mobiles became free. Calls to certain charity and similar services were always free from most mobiles. 0808 9xx xxxx numbers are used by freephone internet services. 0800 xxx xxxx; 0808 xxx xxxx
Short codes, or short numbers, are short digit-sequences - significantly shorter than telephone numbers - that are used to address messages in the Multimedia Messaging System (MMS) and short message service (SMS) systems of mobile network operators. [ 1] In addition to messaging, they may be used in abbreviated dialing .
Call flow for the mobile terminated Short Message Service. The figure to the right depicts a call flow for mobile-terminated Short Message delivery. [1] For the sake of simplicity, some of the interactions between the VMSC and VLR, and VMSC and Handset, have been omitted, and only the case when SMS home routing is not in use is shown.
SMS ( short message service) is a text messaging service component of most telephone, Internet, and mobile device systems. It uses standardized communication protocols to enable mobile devices to exchange short text messages. An intermediary service can facilitate a text-to-voice conversion to be sent to landlines.
A direct-to- short message service centre (SMSC) gateway is a software application, or a component within a software application, that connects directly to a mobile operator's SMSC via the Internet or direct leased line connections. The Short Message Peer-to-Peer (SMPP) protocol is typically used to convey SMS between an application and the SMSC.