SIP Phone DLL allows to make PC-PC, PC-phone, or phone-phone calls or create Instant Messaging (IM) sessions over the Internet VOIP SIP Phone SDK brings protocol support for ActiveX. With this SDK one can create a simple web site voip service.
Embedded Windows CE VOIP Developers Kit is your embedded?telephony solution for developing software/hardware to enable device to device phone calls using SIP/H323 phone right at the electronics level.
Make voice calls from any PC in the world. Free voice connectivity with Internet users. RinGo allows you to make calls from any place in the world from your PC without the use of PSTN (traditional telephony provider) for local and international calls
