Voice over IP, or VOIP, is an fairly recent technology which allows people to talk over any IP network.
Contents
Documentation
The GnomeMeeting FAQ has lots of good information about H.323 in general, though it's obviously from a GnomeMeeting perspective
A good discussion on Advogato about possible OpenSource alternatives to Skype.
Hardware
- Sipura Technology
- Nice standards based VOIP hardware (recommended by Myles).
- Snom
- Make nice looking hardware including VOIP phones and gateways (recommended by Myles).
- QuickNet
A Linux compatable jack which allows PC-to-Phone calls via the MicroTelco service.
- BudgeTone
- Very cheap, and supposedly good, VOIP capable phones.
Services
- FWD (Free World Dialup)
- Run by pulver.com, looks cool.
- IP Kall
- Service that appears to allow calls from a land line to a VOIP phone and vice versa.
- MicroTelco
Service which allows PC-to-Phone calls (for a cheap rate), PC-to-PC calls are free (supports GnomeMeeting).
- SIP phone
- Another service, looks good.
Other Sites to Check Out
Software
- X-Lite (Windows/OSX)
- Softphone that supports FWD.
- Gizmo (Windows/Linux(soon))
- Similar to Skype but with free Voicemail
- GnomeMeeting (Linux)
Linux clone of MicroSoft NetMeeting (and more?). Interesting press release claiming the ability to have a Linux gateway and use a normal phone for VOIP calls.
- Asterisk (Linux)
OpenSource PBX that incorporates traditional telephone service with VOIP. You can integrate it with FreeWorldDialup. See DigiumAsterisk
- SER (SIP Express Router)
- Another PBX looking solution.
- sipX
OpenSource SIP PBX ...
- Open Wengo (Open Source)
- sip calls, SMS, video conference, and automatic NAT configuration. It's still under heavy development, but it looks very promising.
http://dev.openwengo.com/trac/openwengo/trac.cgi/wiki/WengoPhoneNG