cisco 2651xm router running cme and sip trunk and 7940G ip phone. I've been hammering away for some time now trying to get my cisco-router-sip-trunk to work with sipgate but no joy. The sip trunk registers fine with sipgate.co.uk but the dialing in and out doesn't work. I get 'Unknown'Number' all the time. I'm now getting a sneaking suspicion there might not be compatibility between my gear and sipgate but if anyone out there can confim or disagree with this I'd be grateful to hear from you, but more importantly if anyone has a sample config for a cisco 2600 router that actually works with sipgate I'd be very grateful to see it. thanks for any help.