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44865 2007 年 12 月 23 日 15:35 Reading (loading. ..) Comments (1) Category: Personal Diary
CDMA the difference between cell phone ESN number sequence
CDMA mobile phone called the ESN (electronic serial number known), the mobile phone manufacturers to write each and every mobile phone different, It consists of eight hexadecimal characters. ESN is defined as such : ESN is the only mobile device to identify a 32-bit number, each dual-mode mobile station is assigned a unique electronic serial number, serial number from the manufacturer ID and device composition. It is the only wireless system can identify the mobile station ,
burberry bags, just like the ID card. Corresponds to a ESN, can be assigned a unique phone number. ESN in CDMA is used to identify a major role in the mobile device. ESN is assigned a so-called a phone number, it is one of the phone cards for the machines and square, while in South Korea, Japan and the US are using the modem card one of the CDMA mobile phone.
China Unicom in 1999 first proposed the introduction of the CDMA system, the concept of smart IC card, the so-called card separation technology. Through the card separation technology, user-related information, authentication algorithms and security-related information kept on a smart card,
mulberry handbags, the card called the R-UIM (Removable User Identity Module), also known as UIM card.
to make UIM card really can not rely on a specific phone, can easily plugs into any mobile phone use, so to each UIM card defines an ID number, that UIM-ID,
designer handbags cheap, the length of 32bit, and the length of the same mobile station ESN. In the card from the phone using the UIM-ID, instead of the original ESN associated operations will be avoided because the card from the changes caused by air interface. Particularly important in the UIM norm- setting process, the full use of the SIM card has been developed to have physical properties, electrical properties and logical characteristics. So to some extent, it can be said UIM card and the SIM card is the same, can be seen as an increase and CDMA SIM card to operate the parameters, commands,
handbags online cheap, authentication algorithm is made, of course, only support for the operation of a system UIM CDMA cards, may not contain content related to GSM (Unicom UIM card is one such type).
UIM card in the CDMA system and thus the role of the GSM system and the role of SIM card is very similar, is a security mechanism. The user's subscription data, network parameters, authentication algorithms and keys used during authentication are stored in the UIM card , allowing users to secure, easy to use services provided by CDMA network to avoid theft of the number of individual users brought about economic losses.
other CDMA phone also through the international mobile station identifier (IMSI) to be identified. IMSI numbers of up to 15 characters. China is using 15 of the IMSI,
designer handbags online, the MCC (mobile country code for China is 460), MNC (mobile network code CDMA is 01), MSIN (mobile station identification number, also known as MIN codes,
paul smith uk, from 10 digits, assigned by the operator) component. China Unicom is the IMSI and the current mobile phone number through the establishment of correspondence, that IMSI and phone number is one to one.
said in front of so many pseudo-technical terms . You must read dizziness, and now we might as well do these theories into a description of the phone. We are familiar with the GSM system in order to ensure the confidentiality of communications and security within the system, each user has three numbers, namely , mobile subscriber number (MSISDN), user identification number (IMSI), Equipment Identity (IMEI). In fact, CDMA mobile phones in the same way, such as Samsung X199 cell phone and then press the MENU 6 Press * key to enter the password 000000 into service mode, where you can see the ESN (in fact the UIM-ID, it will be as UIM card is changed), and also see 10-digit MIN number (first two digits of the code Inaction 09, assigned to the organization for the North American IFAST operator China Unicom's identification number, last four for the UIM card is usually the last four-digit number). And in the mode where you can see their phone number. This service model in the UIM card is actually displayed some of the data user, the data with the UIM card is changed. GSM's SIM card, but also with the same number of networks to detect not only specific users to identify the phone model.
Therefore, after the introduction of machine card separation technology ESN IMEI code and the role of GSM mobile phone is almost the same, users can proof packaging box, camera body, the user registration form, and through access to mobile phone commands are consistent within the ESN to verify the authenticity of phone , but the toad as the main source of foreign use of parallel machines are one of the CDMA mobile phone cards, so this way redundant. And the CDMA phones do not like * # 06 # all ears as a familiar command can be set to check Search hidden ESN phone is not very easy. Such as the Samsung A599 will need to enter * 759 # 813580 to enter the TEST MODE found ESN, the MOTO will need to press * # 25, three times the record button. Sanyo SCP-550 in the standby mode, press MENU, select function guide, then press the navigation key.
Japan, South Korea brought back one of the CDMA mobile phone card machines need to be noted that some foreign band CDMA machine is 1900, so this phone in the country is in any case can not be used.