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지금 바로 1NCE IoT 정액 요금제로 주문하십시오!
온라인상점에서 간단한 절차를 통해 쉽게 IoT 디바이스 연결을 시작하세요. 원하는 SIM 카드 유형과 몇 가지 필요한 항목만 입력하면 주문이 완료됩니다. 결제 승인 후, 7~10영업일 내에 SIM 카드를 받을 수 있습니다.
The IMEI displayed in the Customer Portal is retrieved from the network during PDP context activation, the format is as follows:
IMEI + SV (software version), based on the standard specification 3GPP TS23.003.
Composition of IMEI:
Type Allocation Code (TAC) - 8 digits
Serial Number (SNR) - 6 digits
Spare digit - 1 digit
Composition of IMEISV:
TAC - 8 digits
SNR - 6 digits
Software Version Number (SVN) - 2 digits
If you want to compute the original IMEI from the IMEISV, you can apply the algorithm of Luhn. The Luhn Check Digit (CD) is computed on the 14 digits after the SVN digits are ignored:
Step 1: Double every second digit, starting from the first one on the most right.
Step 2: Add all digits that have been left out in step 1 and then add each individual digit that you got in step 1 (if you got a 12 in step 1, you need to add 1 and 2).
Step 3: If the sum obtained in step 2 ends in 0, then CD is set to 0. Otherwise, the CD is calculated by subtracting the sum from the closest higher value ending in 0 (if you got 18, then CD=20-18=2).
IMEI + SV (software version), based on the standard specification 3GPP TS23.003.
Composition of IMEI:
Type Allocation Code (TAC) - 8 digits
Serial Number (SNR) - 6 digits
Spare digit - 1 digit
Composition of IMEISV:
TAC - 8 digits
SNR - 6 digits
Software Version Number (SVN) - 2 digits
If you want to compute the original IMEI from the IMEISV, you can apply the algorithm of Luhn. The Luhn Check Digit (CD) is computed on the 14 digits after the SVN digits are ignored:
Step 1: Double every second digit, starting from the first one on the most right.
Step 2: Add all digits that have been left out in step 1 and then add each individual digit that you got in step 1 (if you got a 12 in step 1, you need to add 1 and 2).
Step 3: If the sum obtained in step 2 ends in 0, then CD is set to 0. Otherwise, the CD is calculated by subtracting the sum from the closest higher value ending in 0 (if you got 18, then CD=20-18=2).
