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In 1996, the ITU introduced country code +881 for direct international dialing of phones on GMSS providers. ( Inmarsat had already been allocated country code +870.) The next digit following the country code is allocated (two at a time) to a particular GMSS carrier: [ 1 ] [ 2 ]
The phone number for a subscriber of such a service starts with +882/+883 followed by the carrier code. The cost to call such a number can be high; for example in the British Telecom price list rates for various 882 and 883 numbers ranged from £0.60 to £4.50 per minute.
ETSI and 3rd Generation Partnership Project (3GPP) standards, such as GSM and LTE, define supplementary service codes that make it possible to query and set certain service parameters (e.g., call forwarding) directly from mobile devices.
GSM services are a standard collection of applications and features available over the Global System for Mobile Communications (GSM) to mobile phone subscribers all over the world. The GSM standards are defined by the 3GPP collaboration and implemented in hardware and software by equipment manufacturers and mobile phone operators .
Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.
a Paid Toll Free telephone number prefix in the USA [citation needed] the Port of Los Angeles Long Wharf, California State Historic Landmark #881 [ citation needed ] In astronomy, NGC 881 is an Sc type galaxy in the constellation Cetus.
In GPRS Coding Schemes CS-1 through CS-3, the convolutional code is of rate 1/2, i.e. each input bit is converted into two coded bits. [5] In Coding Schemes CS-2 and CS-3, the output of the convolutional code is punctured to achieve the desired code rate. [5] In GPRS Coding Scheme CS-4, no convolutional coding is applied. [5]
In mobile telephony GSM 03.38 or 3GPP 23.038 is a character encoding used in GSM networks for SMS (Short Message Service), CB (Cell Broadcast) and USSD (Unstructured Supplementary Service Data).