We are based in a far off land, with most of our customers in the US. I just include in my support emails: "If you'd rather discuss anything on the phone, just

We are based in a far off land, with most of our customers in the US. I just include in my support emails: "If you'd rather discuss anything on the phone, just send me your phone number and timezone and I'll be in touch at a time that works for you". It works well - I normally initiate a few phone calls each day using SkypeOut. We are looking at a SkypeIn number with voicemail to allow customers to make inward calls, but I am pretty happy with the current scenario.