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Voice over IP overview

VoIP or Internet Telephony is a NGN-appliance and maybe one day will totally replace telephony over POTS. A couple of VoIP-protocols are available, e.g. SIP.


  1. Internet connection ;-)
  2. a VoIP account at some VoIP provider
  3. VoIP hardware (e.g. a SIP telephone) or/and VoIP software on your PC

The OpenWrt repository contain a couple of software packages, to enable you to not only make your VoIP work through your NAT, but also do "cool stuff" with it:

Hardening Your System

doc/howto/voip.overview.txt · Last modified: 2017/02/21 15:52 by frkca