Sip Softphone Software
VaxVoIP SIP SDK provides tools and components to quickly add SIP (Session Initiation Protocol) based IP-Telephony make and receive phone calls feature in your web pages and software applications. You can easily develope net-to-phone apps & web pa
Uplink connects SIP protocol VoIP calls to the proprietary Skype phone network. It works in both directions.
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.
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.
Phoner
Free - Heiko Sommerfeldt
Phoner is a free softphone for ISDN and VoIP telephony. An answering machine and Text-To-Speech support complete the large package.
3CX VOIP Phone for Windows
Free - 3CX Ltd
Free VOIP / SIP phone. Use your PC as a phone. Works with any SIP / VOIP provider/ phone service. Use instead of the soft phone provided by your VOIP provider which locks you into their VOIP phone service. Easy to use interface to transfer, forward calls or set-up conference calls. Call log, call statistics & phone-book. Available in English, German, Spanish, French & Portuguese. Free download from http://3cx.com.
Telepati SIP Phone Freeware
Free - Research Lab Inc
Telepati SIP Phone Freeware allows you to make PC-PC phone-phone calls over the Internet. Developed using Research Labs VOIP SIP Phone SDK, this free soft phone brings SIP protocol support for ActiveX. With this phone once you set the gatekeeper proxy with the username and password from your providers, you can connect and start speaking with anyone on the internet.
soft Phone
Free - Soft Phone
soft Phone is a free downloadable soft phone which enables you to make calls from pc to pc, pc to mobile and pc to landline. soft Phone offers you a free phone number to make free pc to pc calls and receive free incoming calls from any phone. Best virtually converts your pc into a second phone.
Best Phone
Free - Daily Offerz
Best Phone is a free downloadable soft phone which enables you to make calls from pc to pc, pc to mobile and pc to landline. Best Phonoffers you a free phone number to make free pc to pc calls and receive free incoming calls from any phone. Best virtually converts your pc into a second phone. Best Ph also offers outstanding features such as Video Call, Follow Me Service, Voice Mail, Video Chat, MP3 Player, Video Streaming, Fax and Online Search.
PhonerLite
Free - Heiko Sommerfeldt
Easy to use VoIP softphone with profile and contact management.
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