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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.
Concatenated short messages, 8-bit reference number: SMS Control: 3: no 01: Special SMS Message Indication: SMS Control: 2: yes 02: Reserved: N/A: N/A: yes 03: Not used to avoid misinterpretation as <LF> character: N/A: N/A: yes 04: Application port addressing scheme, 8 bit address: SMS Control: 2: no 05: Application port addressing scheme, 16 ...
The 3GPP TS 23.038 standard (originally GSM recommendation 03.38) defines GSM 7-bit default alphabet which is mandatory for GSM handsets and network elements, [1] but the character set is suitable only for English and a number of Western-European languages.
The industry established a body, Industry Number Management Services (INMS) Ltd, to allocate individual numbers and administer the centralised reference database of all allocated local rate and freephone numbers. [1] Vanity numbers, such as phonewords or short 13- series shared-cost service numbers, are made available by auction.
A Short Message Service Center (SMSC) is a network element in the mobile telephone network. Its purpose is to store, forward, convert and deliver Short Message Service (SMS) messages. The full designation of an SMSC according to 3GPP is Short Message Service - Service Center (SMS-SC).8522076203
Field 2 (1 octet): Information Element Identifier (IEI), equal to 00 (Concatenated short messages, 8-bit reference number) Field 3 (1 octet): Length of the Information Element (IEL), excluding the IEI and the IEL; equal to 03; Field 4 (1 octet): 00-FF, CSMS reference number, must be same for all the SMS parts forming the concatenated message
The Short Message protocol itself is defined by 3GPP TS 23.040 for the Short Message Service - Point to Point (SMS-PP), [2] and 3GPP TS 23.041 for the Cell Broadcast Service (CBS). [3] Four MAP procedures are defined for the control of the Short Message Service: [1] Mobile Originated (MO) short message service transfer;
A mobile dial code (MDC) is a grouping of 3 to 10 numbers following either a "#" "##" "*" "**" used to create a short, easy to remember phone number. Historically MDCs were used for repair related purposes by landline and wireless carriers.