On Sun, 30 Jan 2011 03:42:43 -0800 (PST), Bogdan Alecu wrote:
Hello,
I noticed that when I start the mobile application, after the phone
chooses a specific channel I get different messages regarding IMSI
saying that it's not for us. What are these messages? Phones that
camp
on this channel? If so, I tried turning off/on a phone from the same
operator but I can't see my IMSI showing up.
These are paging requests for phones in your location area. As
osmocombb
receives them and checks them for its own imsi/tmsi, it discards those
ones you observed.
The imsi of your other phone should not ever be seen on the paging
channel as
gsm trys to avoid sending out imsis as much as possible. Instead the
network
attaches a tmsi to the imsi on your phones first network login
(location update)
and uses that from there on for addressing the phone. This tmsi is kept
by
storing on the sim card even over powercycle.
Regards,
Mad