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Mobile number portability is implemented in varying ways across the globe. The International and European standard specifies that a customer wishing to port their number contact the new network (recipient), which then sends the number portability request (NPR) to the current network (donor).
Mobile Subscriber ISDN Number 01151601062 Vocabulary for 3GPP Specifications (new) ITU-T Rec. Q.1741-4 (10/2005) Dictionary for OMA Specifications . CSPS. ITU GSMA. Mobile Station International ISDN Number(s) MSISDN Format and Details . ITU-T Rec. Q.1741-4 (10/2005) Mobile Terms & Acronyms. ITU: Mobile International ISDN Number
Double-precision floating-point format (sometimes called FP64 or float64) is a computer number format, usually occupying 64 bits in computer memory; it represents a wide dynamic range of numeric values by using a floating radix point.
The Q notation is a way to specify the parameters of a binary fixed point number format. For example, in Q notation, the number format denoted by Q8.8 means that the fixed point numbers in this format have 8 bits for the integer part and 8 bits for the fraction part. A number of other notations have been used for the same purpose.
A Maritime Mobile Service Identity (MMSI) is effectively a maritime object's international maritime telephone number, a temporarily assigned UID, issued by that object's current flag state, (unlike an IMO, which is a global forever UID).
A SIM card (full form Subscriber Identity Module or Subscriber Identification Module) is an integrated circuit (IC) intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers).
Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or ...
The format of such "voice-called" mobile customer numbers varied by jurisdiction. B.C. Tel , for example, used seven-character numbers starting with N or H, a digit (often 1), then five more digits for the individual customer.