Level 1 and 2 Service Manual | Subscriber Identity Module (SIM) and Identification |
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International Mobile Station Equipment Identity (IMEI)
The International Mobile station Equipment Identity (IMEI) number is an individual number unique to the PCB and is stored within the unit's memory.
The IMEI uniquely identifies an individual mobile station and thereby provides a means for controlling access to GSM networks based on mobile station types or individual units. The full IMEI structure is listed in Table 2.
Table 2. IMEI Number Breakdown
TAC | Serial Number | Check Digit |
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NNXXXXXX | ZZZZZZ | A |
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Where
TAC Type Allocation Code, formerly known as Type Approval Code
NNReporting body identifier
XXXXXXType Identifier
ZZZZZZIndividual unit serial number
APhase 1 = 0.
Phase 2 = check digit defined as a function of all other IMEI digits
Other label number configurations present are:
•TRANSCEIVER NUMBER: Identifies the product type. Normally the SWF number. (i.e. V100).
•PACKAGE NUMBER: Identifies the equipment type, mode, and language in which the product is shipped.
October 27, 2006 | 35 |