VOIP with Telkom? (Fiber)

[SeRpEnT]

I have just signed up with Telkom (Fiber - via Vumatel) and is looking at cancelling my phone line and ADSL. But what options are there for VOIP on Telkom ISP? And costs and devices? Any help or link to a website?

Thanks in advance.

 

[rrh]

For residential use I am very happy with FreshPhone