Hello guys,
As I am not an experienced GSM engineer I can't fully understand the GSM
specs.
But I found this in paragraph 4.1.1.2.1 of GSM 04.08:
"NOTE:
Whenever GMM performs a combined GMM procedure, a GPRS MS enters the MM
state
MM LOCATION UPDATING PENDING in order to prevent the MM to perform a
location update procedure."
Since we haven't done anything for GPRS support, this might be the
reason why a location update is not performed with bsc_hack.
Once again, I'm a beginner on this field and still need some more
readings and learning of GSM and OpenBSC sources.
But I hope I found the part that might lead you to solve the GPRS
supported mobiles registering issue.
P.S.: Is everybody on holiday...:)