GPRS on Blackberry devices

Greetings, I've attached a BB8700 onto my openBSC and GSM wise, everything works well after a reboot or two concerning "SIM: Call Barred". One issue I am seeing is that it does not bring up GPRS/EDGE. NITB console shows a DATA INDICATION followed by a RELEASE INDICATION. SGSN shows the following when attaching to the network: <0012> gprs_bssgp.c:347 BSSGP TLLI=0x7f5bff3f Rx UPLINK-UNITDATA <0013> gprs_llc.c:478 LLC SAPI=1 C FCS=0xf80758CMD=UI DATA <0013> gprs_llc.c:742 LLC RX: unknown TLLI 0x7f5bff3f, creating LLME on the fly the handset never reaches GPRS mode. Any ideas? PCap available upon request. Cheers, -Don