On 09/16/13 01:23, James Freer wrote:
I haven't tried Ekiga which is the FOSS one I believe but one has to pay for an account I think.
I'm pretty sure Ekiga will work with any good SIP/RTP (Session Initiation Protocol / Real Time Protocol - I think) account provider, some of which are free. Most of them charge you to call to/from outside phone numbers, but so does Skype.
I actually use Linphone, but I got that working more than 5 years ago so I'm not sure it's state of the art.
Regards,