Along with PSTN and PRI/BRI Gateways, it would be nice to have some GSM Gateway devices that are supported. I see more carriers begin to reduce the footprint of the traditional PSTN in favor of SIP delivered to the customer site over a data line. AT&T UVerse, Verizon FIOS, etc. Given that many businesses also have business Cell phone plans and unlimited minute plans, why not capitalize on the potential for cheap unlimited lines. I believe that Integrated GSM Gateway support would REALLY set 3CX apart in the Software PBX world and become a significant draw.