There are generally two paid options for letting people reach you via Skype for free:
- Skype Connect charges US$6.95/month per channel. So if you plan to use it for conferencing or something decent, you need more channels. Also if you want the user to enter DTMF digits during the call, that’s going to be tricky: the dialpad is hidden in Skype menus, and one can choose it only during the call.
- Toll-free numbers. Skype users can dial them for free, even the users with zero credit. Also you automatically get the DTMF dialpad within one click. An UK toll-free number with SIP forwarding would cost you US$7.70 per month, plus $US0.0377 per minute (there are also cheaper offers for US toll-free numbers, but I live in Europe). So, 5 hours a month of conference use would cost you $US11.31 for call minutes, plus US$7.70 monthly fee… so at a price of a 3-channel Skype Connect we get a better service, unlimited number of channels, and also a PSTN gateway. Profit!