As part of an office move the business I work for has decided to try and go with a 3CX system (so probably v 9) rather than re-locate our old PBX. This is something we'll be thinking about setting up within the next four to six weeks. Now I have the task of finding a good SIP trunk provider in the UK. A couple of things are that we need to be able to port around 45 numbers/DDI's over from British Telecom, and that we do not wish to use a SIP trunk providers own Internet connectivity as we have a 4Mb syncronous product from Easynet (EtherStream). So, could someone please reccomend a SIP trunk provider in the UK that meets the above, is compatible with 3CX, and will have low international call charges comparable with those available using traditional CPS on an ISDN30 ?. Thanks.