Hi, I've been using 3cx for about a month now and I'm very happy with all aspects of it. Except for one intermittent issue I've noticed. Certain automated IVR systems (e.g. Best Buy, certain govt. offices, Rogers...) don't seem to respond properly to my digits. I'll get a standard, default recording like, "one moment please, you have entered an invalid extension" or "Thank you for calling. If you are calling from a touchtone phone, ..." On most IVRs it works properly (as expected), and even on "problem" IVRs, every once in a while it'll work. I'm using voip.ms service, and I also have a Sipura SPA2100, the weird thing is that it works through the Sipura - only the 3cx gives me "weird" responses. So I doubt it's voip.ms configuration issue (though I have played around with the DTMF mode). Any ideas on what to try? Thanks.