Can different softphone (VOIP) communicate each other ? if it is, what are the softwares?

Question by aisyah: Can different softphone (VOIP) communicate each other ? if it is, what are the softwares?
as example...can Skype communicate with X-Lite?


Best answer:
Answer by rajhanschinmayyes why not?

Here are links for you of softwares:
http://www.voip-info.org/wiki-Open+Source+VOIP+Software

http://www.sipsoftware.com/

http://www.uwtservices.com/soft/eng/appeng.asp

http://pcwin.com/Internet/Express_Talk_VoIP_Softphone/index.htm


I think you will get many such softwares.
Try

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