Sip lib
SIP Phone DLL 3.0

SIP Phone DLL - A powerful and highly versatile VoIP SDK to accelerate development of SIP applications. Our brand-new SIP SDK provides a powerful and highly versatile solution to add quickly SIP (Session Initiation Protocol) based dial and receive phone calls features in your software applications. It accelerates the development of SIP/ RTP compliant soft phone with a fully-customizable user interface and brand name.
- License: Commercial
- Language: English, German
- Release: 2008-06-18
- Size: 5 Mb
- Cost: 999.00 $
VoIP SIP SDK 1.0

VoIP SIP SDK - A powerful and highly versatile VoIP SDK to accelerate development of SIP applications. Our brand-new SIP SDK provides a powerful and highly versatile solution to add quickly SIP (Session Initiation Protocol) based dial and receive phone calls features in your software applications. It accelerates the development of SIP/ RTP compliant soft phone with a fully-customizable user interface and brand name.
- License: Commercial
- Language: English, German
- Release: 2007-09-22
- Size: 3 Mb
- Cost: 999.00 $
VoIP SIP SDK with DLL, ActiveX and .NET 2.5.2

VoIP SIP SDK with DLL, ActiveX and .NET - A powerful and highly versatile VoIP SDK to accelerate development of SIP applications. Our brand-new SIP SDK provides a powerful and highly versatile solution to add quickly SIP (Session Initiation Protocol) based dial and receive phone calls features in your software applications. It accelerates the development of SIP/ RTP compliant soft phone with a fully-customizable user interface and brand name.
- License: Commercial
- Language: English, German
- Release: 2008-05-13
- Size: 5 Mb
- Cost: 999.00 $
VoIP H.323 SDK for .NET and ActiveX 1.0

VoIP H.323 SDK - A powerful and highly versatile VoIP SDK to accelerate development of H.323 applications and websites Our brand-new VoIP H.323 SDK provides a powerful and highly versatile solution to add quickly H.323 based dial and receive phone calls features in your software applications. It accelerates the development of H.323 compliant soft phone with a fully-customizable user interface and brand name.
- License: Commercial
- Language: English, German
- Release: 2008-04-03
- Size: 7 Mb
- Cost: 1499.00 $
VaxVoIP SIP activeX SDK 3.1

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. It delivers superior voice quality by integrating advanced digital voice processing features including acoustic echo cancellation, noise cancellation and adaptive jitter buffering.
- License: Shareware
- Language: English
- Release: 2010-01-16
- Size: 10 Mb
- Cost: 1270.00 $
VaxVoIP SIP activeX SDK 1.0

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. It delivers superior voice quality by integrating advanced digital voice processing features including acoustic echo cancellation, noise cancellation and adaptive jitter buffering.
- License: Shareware
- Language: English
- Release: 2005-09-18
- Size: 7 Mb
- Cost: 1500.00 $
Uplink Skype to Sip Adapter 1.21

Uplink connects SIP protocol VoIP calls to the proprietary Skype phone network. It works in both directions. Connects both incoming and outgoing calls to the Skype network. Can be used to make SkypeOut calls from a SIP device or SIP PBx. Can receive SkypeIn calls and direct them to your SIP extension. Fully complies with the RFC3261 for SIP signalling
- License: Shareware
- Language: English
- Release: 2006-09-28
- Size: 238 Kb
- Cost: 27.50 $
Uplink Skype to Sip Adapter 1.21

Uplink connects SIP protocol VoIP calls to the proprietary Skype phone network. It works in both directions. Connects both incoming and outgoing calls to the Skype network. Can be used to make SkypeOut calls from a SIP device or SIP PBx. Can receive SkypeIn calls and direct them to your SIP extension. Fully complies with the RFC3261 for SIP signalling
- License: Shareware
- Language: English
- Release: 2006-09-28
- Size: 238 Kb
- Cost: 49.99 $
Embedded VOIP SIP Developers Kit 1.21

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. The design is based on Hybrid Combination of RFC SIP Protocol and Windows RTC and is today successfully ported to Windows CE/Pocket PC/Smart Phone.
- License: Demo
- Language: English, German, French, Italian, Spanish, Japanese, Russian, Chinese, ChineseSimplified, ChineseTraditional, Abkhazian, Afar, Afrikaans, Albanian, Amharic, Arabic, Armenian, Assamese, Aymara, Azerbaijani, Bashkir, Basque, Bengali, Bhutani, Bihari, Bislama, Breton, Bulgarian, Burmes
- Release: 2005-09-01
- Size: 2 Mb
- Cost: 799.00 $
Zoiper Free IAX and SIP softphone 2.30

ZOIPER 2.0 Free SIP and IAX is a user-friendly softphone, compatible with Asterisk or any other SIP or IAX capable system. High-quality VoIP experience with features like: SIP + IAX protocols, T.38 fax support, STUN support, Echo cancellation, DTMF tones, Adaptive jitter buffer, Call transfer, Hold function, Multilanguage support, Portable storage compatibility, Codecs: GSM, ulaw, alaw, speex, ilbc.
- License: Freeware
- Language: English, Dutch, French, German, Portuguese, Russian, Spanish
- Release: 2008-02-07
- Size: 2 Mb
- Cost: Free
Express Talk VoIP Softphone 4.20

Express Talk is software that works like a telephone to let you make calls from your PC. With Express Talk you can call anyone on the internet who has installed Express Talk (or any other SIP voip softphone). Calls are free. You can also call ordinary telephone numbers anywhere in the world if you sign up to a gateway service. It uses the SIP protocol and is compatible with most major VoIP SIP service providers.
- License: Shareware
- Language: English
- Release: 2011-08-02
- Size: 613 Kb
- Cost: 49.99 $
Minipax 2.8.3

Minipax is newest generation of Vidosystem Softphone. Our engineer had successfully recode sip engine to produce more robust, small application, better nat traversal sip softphone. Minipax NOW support SIP tunneling. SIP tunneling works where clients firewall blocked or on a country where voip is blocked. SIP tunneling also give more security to voip Minipax support hold function, mute function, mic/spk volume control, transfer call, for
- License: Freeware
- Language: English
- Release: 2007-12-26
- Size: 1 Mb
- Cost: Free
Zoiper Free IAX and SIP softphone 2.15

ZOIPER 2.0 Free SIP and IAX is a user-friendly softphone, compatible with Asterisk or any other SIP or IAX capable system. High-quality VoIP experience with features like: SIP + IAX protocols, T.38 fax support, STUN support, Echo cancellation, DTMF tones, Adaptive jitter buffer, Call transfer, Hold function, Multilanguage support, Portable storage compatibility, Codecs: GSM, ulaw, alaw, speex, ilbc.
- License: Freeware
- Language: English, Dutch, French, German, Portuguese, Russian, Spanish
- Release: 2008-06-17
- Size: 2 Mb
- Cost: Free
Mizu SoftPhone 1.4.4

MizuPhone has features never seen in other SIP softphones like HD video, Remote Desktop over SIP, UltraWideband codec and others. MizuPhone helps to join the largest comunity in the world. Over 10 million existing SIP users. The VOIP client that takes the most of the newest VOIP technologies. With the help of its advanced network handling, it will work behind NAT's where other softphone's will fail. Full compatibility with your SIP infrastructure
- License: Shareware
- Language: English, Hungarian, Romanian
- Release: 2009-03-01
- Size: 16 Mb
- Cost: 50.00 $
Carousel Telephony Adapter 1.00

Carousel is software to connect VoIP calls to ordinary telephone lines and vice versa using one of a number of professional telephony devices. It works as a virtual FXO gateway. You install it as a service on any Windows PC. SIP protocol VoIP calls will be directed out to standard PSTN analog lines through a telephony board.
- License: Freeware
- Language: English
- Release: 2006-09-18
- Size: 210 Kb
- Cost: Free
Mizu VoIP SoftPhone 2.1.1

MizuPhone has features never seen in other SIP softphones like HD video, Remote Desktop over SIP, UltraWideband codec and others. MizuPhone helps to join the largest comunity in the world. Over 10 million existing SIP users. The VoIP client that takes the most of the newest VOIP technologies. With the help of its advanced network handling, it will work behind NAT's where other softphone's will fail. Full compatibility with your SIP infrastructure
- License: Shareware
- Language: English, Dutch, German, Hungarian, Romanian, Spanish, Swedish
- Release: 2010-06-23
- Size: 15 Mb
- Cost: 50.00 $
PC-Telephone 6.3.1

Make FREE pc-to-pc, pc-pc and cheap pc-to-phone, pc-phone, pc-to-fax, pc-fax, phone-to-pc, phone-pc, fax-to-pc, fax-pc, SIP-telephone, sip-to-phone calls over Internet/VoIP or ISDN/PSTN telephone networks. Use your computer as internet telephone, USB phone, ISDN telephone, ISDN fax, fax software, voicemail, caller ID, CLIP/CLIR, audio conferencing, call answer, call transfer, call forwarding, call waiting, call accounting, call recording.
- License: Shareware
- Language: English, Bulgarian, French, Russian, Spanish
- Release: 2011-06-20
- Size: 1 Mb
- Cost: 35.00 $
Carousel Telephony Adapter 1.00

Carousel is software to connect VoIP calls to ordinary telephone lines and vice versa using one of a number of professional telephony devices. It works as a virtual FXO gateway. You install it as a service on any Windows PC. SIP protocol VoIP calls will be directed out to standard PSTN analog lines through a telephony board.
- License: Freeware
- Language: English
- Release: 2006-09-18
- Size: 210 Kb
- Cost: Free
Axon Business Virtual PBx System 2.21

Axon is a virtual IP PBx for Windows PCs featuring a one click installation setup and a web management console that makes configuring your new PBx easy. Implement a scalable PBX solution with an existing PC which connects to phone lines and extensions using VoIP technology for your business or home. Offering all the normal features of a traditional PBX such as allowing internal or external calls and more advanced call queuing for call centers.
- License: Shareware
- Language: English
- Release: 2011-08-23
- Size: 1 Mb
- Cost: 129.00 $
PCBest Networks SIP PBX V2.01

A Windows free SIP IP PBX software. It is very easy to use and deploy, with powerful features like:ACD, Auto Attendant, Call Park, Ring Group, Conference, Call Pickup Group, Auto Outbound Dialer, Database CDR report, Database PBX Status Report. It supports SIP extensions, SIP accounts, inbound and outbound calls, and customized dial plans. It supports plugins. Plugin samples can be programmed by .NET languange like C#, and vb.net.
- License: Freeware
- Language: English
- Release: 2009-07-22
- Size: 4 Mb
- Cost: Free