For my thesis research, I am looking for a 3G protocol stack that enables users can call each other and make data connections. If I can, I need to establish 7-8Mbps for downlink in lab environment. Is it even possible, I don’t know yet? Besides, I am sure you know if I can make a call connection between 2G and 3G users via Osmocom. This is my another possible research subject. Thank you very much in advance for your answers. Best Regards,