GPRS branch status update

Hi!

I've applied a series of fixes and extensions to the GPRS branch, and would like to invited interested nanoBTS users to give it another try.

Right now, I am getting fully through GPRS routing area update and attach request, i.e. the phones can fully register to the GPRS network.

Minimal PDP context activation and deactivation has been implemented, i.e. the phone will send a ACTIVATE PDP CONTEXT REQUEST, and the network will simply ACK it. However, since the network does not add any IPCP options, the phone will typically DEACTIVATE the context immediately after that.

Have fun,