ZyXEL Communications ZyWall USG 50-H Series User Manual page 144

Chapter 7 Status
Table 39 Status > Cellular Detail (continued)
LABEL
Device IMEI /
ESN
SIM Card IMSI
144
DESCRIPTION
This displays the International Mobile Equipment Number (IMEI) which is the serial
number of the 3G wireless card. IMEI is a unique 15-digit number used to identify a
mobile device.
When you insert a CDMA (Code Division Multiple Access) 3G card, this shows the
ESN (Electronic Serial Number) of the inserted CDMA 3G card. The ESN is the
serial number of a CDMA 3G card and is similar to the IMEI on a GSM or UMTS 3G
card.
This displays the International Mobile Subscriber Identity (IMSI) stored in the SIM
(Subscriber Identity Module) card. The SIM card is installed in a mobile device and
used for authenticating a customer to the carrier network. IMSI is a unique 15-digit
number used to identify a user on a network.
ZyWALL USG 50-H User's Guide