Section 1150 Alibaba original address: About ESN, MEID, pESN of literacy and conversion tool prov

Section 1150 Alibaba original address: About ESN, MEID, pESN of literacy and conversion tool provides authors: heart you
ESN (Electronic Serial Numbers): an electronic kaasugrilli serial number. In a CDMA system, a unique identifier is to identify the physical hardware devices. That each handset kaasugrilli are using this unique ID to identify themselves, just like human identity. An ESN has 32 bits, which is 32/8 = 4 bytes. With the increase in other CDMA mobile device, ESN was not enough, so launched a median more MEID. ESN with eight hexadecimal represented as 0x801EA066. MEID (Mobile Equipment ID): Mobile Equipment Identity. As I mentioned before, due to the increase CDMA mobile device, resulting in the original 8 of ESN is not enough, so launched a 56bits of MEID code, MEID can be expressed as 14 hexadecimal code, such as 0xA1000002B0BEB2. CDMA phones beginning 0xA said, if it is 0x9, it means multimode phones. pESN (pseudo ESN): pseudo-ESN. kaasugrilli pESN was launched to solve the problem of forward compatibility, pESN format and ESN is exactly the same, the only difference is the use of 0x80 is pESN beginning. MEID into pESN, you can normally use in support of ESN's C network. MEID into pESN specific approach is, 56 bits of MEID by SHA-1 hash algorithm, six after the pick, and then add in the beginning of the 0x80. Here are some of the current situation: 1, a cell phone can only have one ESN or an MEID. ESN codes are as 6800,6900; but 6950 started on the use of MEID yards. kaasugrilli 2, with ESN or MEID code of the phone can support the normal use of the ESN's CDMA network, kaasugrilli ESN codes can not only support the use of mobile phones within the MEID of CDMA network. 3, China Telecom's C network using ESN authentication.
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