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1	VOIP H323 Phone SDK
	VOIP H323 DLL Soft Phone SDK brings H.323 protocol support for ActiveX. With this SDK one can create a simple program to connect and start speaking with anyone with a direct IP Address or use the Gateway or the Gatekeeper to connect to /or from PSTN.
	Size: 5.2 MB,  Price: USD $399.00 ,  License: Shareware,  Author: Research Lab Inc (research-lab.com)

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2	AGEphone
	It's VoIP engine "microSIP stack", an original SIP parser and IP packet processing program make operation at super small size and with super light weight possible, while ensuring great sound quality through a newly developed packet buffering.
	Size: 2.7 MB,  Price: USD $50.00 ,  License: Demo,  Author: ageet Corporation (ageet.com)

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3	AGEphone for Windows Mobile 2003/5.0
	It's VoIP engine "microSIP stack", an original SIP parser and IP packet processing program make operation at super small size and with super light weight possible, while ensuring great sound quality through a newly developed packet buffering.
	Size: 462.0 KB,  Price: USD $50.00 ,  License: Demo,  Author: ageet Corporation (ageet.com)

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4	Adore Softphone
	The SIP technology can be used to make outbound phone calls from PC to any telephone.Since it implies Microsoft's g723.1 codec, it can be used to all versions of Microsoft windows without the need of external codecs and gives excellent call quality ...
	Size: 2.2 KB,  Price: Free,  License: Freeware,  Author: Adore Infotech (adoresoftphone.com)
	Adore Softphone, Call Recording, Click2call, Pc To Phone, Soft Phone, Softphone, Web To Phone

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5	3CX VOIP Phone for Windows
	Free VOIP / SIP phone. Use your PC as a phone. Works with any SIP/ VOIP provider/ phone service. Easy to use interface to transfer, forward calls or set-up conference calls. Free download from http://www.3cx.com Free VOIP / SIP phone. Use your PC as ...
	Size: 1.1 MB,  Price: Free,  License: Freeware,  Author: 3CX Ltd (3cx.com)
	Ip Pbx, Sip, Sip Phone, Voip, Voip Phone, Voip Phone System, Vonage

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6	Harden-It
	1 Windows Security Hardening Tool, harden your TCP/IP Stack and Local System. Harden-It is a Network hardening tool for Windows, by hardening the I stack your Network can sustain or completely twarth various sophisticated network attacks. Harden-It 1.
	Size: 433.3 KB,  Price: Free,  License: Freeware,  Author: YASC LTD (purge-it.com)
	Denial Of Service, Freeware, Harden, Hardening, Ip, Protect, Security, Stack, Tcp, Windows

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7	3CX Phone System for Windows Free
	3CX VOIP Phone System FREE edition is a SIP-based IP PBX developed for Windows. Easy to install and configure, it eliminates phone wiring and allows hot desking. Lowers call costs via VoIP providers & eliminates vendor lockin. Eliminate PBX headaches ...
	Size: 32.5 MB,  Price: Free,  License: Freeware,  Author: 3CX Ltd (3cx.com)
	Ip Pbx, Office Phone System, Office Telephone System, Pabx, Pbx, Phone System, Sip, Small Business Phone System, Voip, Voip Phone System

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8	MSW.Collections
	Contains a fast double sided ring buffer class, can also work as a list, queue and stack. Implements all relevant interfaces and features silent or violent overflow. MSW.Collections Library for Microsoft .NET, standard and generic implementation.
	Size: 150.4 KB,  Price: Free,  License: Demo,  Author: Managing Software (ManagingSoftware.com)
	Collection, Double Sided Ringbuffer, List, Queue, Silent Or Violent Overflow, Stack

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9	Visio Protocol Stack
	Visio Protocol Stack stencil and template. A stencil that can be used to create protocol stack layer and message drawings as per the example below. The template provides a blank drawing canvas and defines the way connections flow on a drawing. Visio ...
	Size: 45.8 KB,  Price: USD $18.00 ,  License: Data only,  Author: Sandrila Ltd (sandrila.co.uk)
	Protocol Stack, Stencil, Visio

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10	BlueSim
	BlueSim JSR-82 Simulator allows you to test your JSR-82 applications without any need of actual bluetooth device or a real bluetooth stack. BlueSim is a JSR-82 simulator built using Java. BlueSim JSR-82 Simulator allows you to test your JSR-82 applications ...
	Size: 81.4 KB,  Price: USD $9.00 ,  License: Commercial,  Author: JSRSoft (javabluetoothstack.com)
	Bluetooth, Jabwt, Jabwt Simulator, Java Bluetooth, Java Bluetooth Stack, Jsr82, Jsr82 Simulator

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11	SIP Phone DLL
	SIP Phone DLL - A powerful and highly versatile VoIP SDK. Our SIP Phone DLL 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. ...
	Size: 9.1 MB,  Price: USD $999.00 ,  License: Commercial,  Author: conaito Technologies (conaito.com)
	Rtp, Sdk, Sip Activex, Sip Dll, Sip Lib, Sip Rtp, Sip Sdk, Sip Softphone, Text Conference, Voice Conference, Voice Conversation, Voip Activex, Voip Chat, Voip Com, Voip Component, Voip Conference, Voip Conference Software, Voip Lib, Voip Sdk

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12	VaxVoIP SIP activeX SDK
	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 pages.
	Size: 7.3 MB,  Price: USD $1500.00 ,  License: Shareware,  Author: VaxSoft Inc (vaxvoice.com)
	Sip Activex, Sip Development, Sip Dll, Sip Ocx, Sip Sdk, Sip Softphone, Sip User Agent Sdk

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13	Embedded VOIP SIP Developers Kit
	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. With a memory overhead of 3 MB - the telephony engine very well fits the needs of engineers looking for ...
	Size: 2.4 MB,  Price: USD $799.00 ,  License: Demo,  Author: Research Lab Inc (research-lab.com)
	Embedded H323 Phone, Embedded Internet Protocols, Embedded Sip Phone, Embedded Telephony, Embedded Voip, Instant Messaging, Rtc Api, Sipphone, Voip, Voip H323, Voip Sip

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14	Uplink Skype to Sip Adapter
	Uplink connects SIP protocol VoIP calls to the proprietary Skype phone network. It works in both directions. Uplink connects SIP protocol VoIP calls to the proprietary Skype phone network. It works in both directions. The SIP protocol has become ...
	Size: 238.3 KB,  Price: USD $27.50 ,  License: Shareware,  Author: NCH Swift Sound Software (nch.com.au)
	Adapter, Asterisk Skype, Sip, Sip To Skype, Skype, Skype Adapter, Skype To Sip, Skype To Sip Converter, Voip Adapter

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15	ZOIPER Free IAX and SIP softphone
	0 Free Edition is a user-friendly IAX and SIP softphone compatible with the Asterisk platform or any other IAX or SIP capable system. ZOIPER Free . Find out the many advantages of this FREE product from Attractel! ZOIPER Free Version 2.0 is a new generation ...
	Size: 2.8 MB,  Price: Free,  License: Freeware,  Author: Attractel (zoiper.com)
	Asterisk, Asteriskguru, Attractel, Calling, Communication, Iax, Iax And Sip, Iax2, Idefisk, Linux, Mac, Phone, Sip, Soft Phone, Softphone, Tcp, Telephone, Telephony, Tls, Voip

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16	VoIP SIP SDK with DLL, ActiveX and .NET
	VoIP SIP SDK - A powerful and highly versatile VoIP SDK. Our 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. VoIP SIP ...
	Size: 6.9 MB,  Price: USD $999.00 ,  License: Commercial,  Author: conaito Technologies (conaito.com)
	Rtp, Sdk, Sip Activex, Sip Dll, Sip Lib, Sip Rtp, Sip Sdk, Sip Softphone, Voice Conference, Voice Conversation, Voip Chat, Voip Com, Voip Conference Software, Voip Lib, Voip Sdk

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17	TekIVR
	TekIVR is a SIP Interactive Voice System (IVR) which provides "Call Attendant" function (Based on RFC 3261) runs under Windows. You can use it freely. We only ask you to provide feedback. TekIVR is a SIP Interactive Voice Response System for ...
	Size: 563.0 KB,  Price: Free,  License: Freeware,  Author: Yasin KAPLAN (tekivr.com)
	Sip Ivr

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18	Mizu Webphone
	The Mizu WebPhone is a lightweight SIP standard based VoIP web phone software implemented as a java applet that can be run from webpages. The Mizu browser Webphone is a lightweight standard based VoIP phone that can be run from the browsers, embeddable ...
	Size: 2.5 MB,  Price: USD $500.00, USD 500 ,  License: Demo,  Author: Mizutech S.R.L (mizu-voip.com)
	Javascript Voip, Sip Javascript, Sip Web Phone, Voip Browser Plugin, Voip Gadget, Voip Web Phone, Web Click To Call, Web Phone, Web2phone, Webphone, Webphone Software

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19	VoIP SIP Client SDK
	VoIP SIP Client SDK - A powerful and highly versatile VoIP SDK. Our 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. ...
	Size: 7.0 MB,  Price: USD $999.00 ,  License: Commercial,  Author: conaito Technologies (conaito.com)
	Sip Activex, Sip Dll, Sip Lib, Sip Sdk, Sip Softphone, Sip/ Rtp, Voice Conference, Voip Conference Software

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20	MizuDroid
	MizuDroid is a professional VoIP softphone for Android which can be used with any softswitch or PBX using the industry standard SIP and RTP protocols. With the MizuDroid free softphone for Android you can make VoIP calls to users anywhere in the world ...
	Size: 862.1 KB,  Price: Free,  License: Freeware,  Author: Mizutech S.R.L (mizu-voip.com)
	Android Dialer, Android Phone, Android Sip, Android Softphone, Android Voip, Free Android Dialer, Free Android Softphone

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21	FLASH CHAT PROGRAM
	Ozeki VoIP SIP .Net SDK to develop Flash chat program for text/audio/video chat between more Flash clients. The sample program uses Flash as the client-side technology. Its GUI has 3 panels to ensure basic telephone functions and 2 pop-up windows Ozeki ...
	Size: 18.1 MB,  Price: USD $697.00 ,  License: Shareware,  Author: FLASH CHAT PROGRAM (voip-sip-sdk.com)
	.net Sdk, C# Softphone, Flash Chat, Flash Mediagateway, Flash Sdk, Flash Sip Client, Flash Sip Softphone, Flash Softphone, Flash Softphone Client, Sip Sdk, Voip Sdk

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22	FLASH SIP SOFTPHONE TO WEB PAGE
	NET SDK allows to develop Flash SIP softphone using Javascript for adding it to web applications to make web to SIP voice calls. The sample program is based on MediaGateway SDK that is part of Ozeki SIP SDK. The softphone can be extended. Ozeki VoIP ...
	Size: 18.6 MB,  Price: USD $697.00 ,  License: Shareware,  Author: FLASH SIP SOFTPHONE TO WEB PAGE (voip-sip-sdk.com)
	.net Sdk, Flash Client, Flash Phone, Flash Sdk, Flash Sip Softphone, Flash Softphone, Ivr Sdk, Sip Sdk, Sip Softphone, Softphone Sdk, Voip Sdk, Web To Sip Calls

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23	WPF SOFTPHONE FOR VB.NET
	Net SIP SDK for developing WinForms softphone in VB.Net to make VoIP calls. The sample program allows to make/receive calls, handles DTMF signals to navigate in IVR systems. It is customizable with more features and company logo. PBX support. Ozeki .
	Size: 16.9 MB,  Price: USD $697.00 ,  License: Shareware,  Author: WPF SOFTPHONE FOR VB.NET (voip-sip-sdk.com)
	Sip Sdk, Softphone Sdk, Vb.net Softphone, Voip Sdk, Wpf Softphone

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24	SILVERLIGHT SIP SOFTPHONE
	Ozeki MediaGateway SIP example to develop a Silverlight VoIP softphone in .Net. It is based on Ozeki VoIP SIP SDK that provides stable background. It allows to make voice and video calls, softphone, IVR applications, autodialer, DTMF signaling, etc Ozeki ...
	Size: 17.4 MB,  Price: USD $697.00 ,  License: Shareware,  Author: SILVERLIGHT SIP SOFTPHONE (voip-sip-sdk.com)
	Dtmf Sdk, Ivr Sdk, Mediagateway Sip Example, Silverlight Sdk, Silverlight Sip Softphone, Sip Pbx, Sip Sdk, Sip Softphone, Softphone Sdk, Voip Pbx, Voip Sdk, Voip Sip Sdk

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25	Crystal FLOW for C++
	Crystal FLOW is valuable for reviewing C/C++ source. It has: Flowcharts, Rich Trees, Visio/JPEG exports, Browser Editions: Docs: HTML docs + flowcharts, trees Professional: Call/Data Flows, RichTree, Object/Stack Size, DataDependency. Understand Code ...
	Size: 14.2 MB,  Price: USD $49.00 ,  License: Shareware,  Author: SGV Sarc Inc (sgvsarc.com)
	Beautify, Browser, C, C++, Call Trees, Data Dictonary, Documentation, Editor, File Compare, Flowchart, Format, Halstead, Mccabe, Metrics, Parse, Programming, Project, Publisher, Styler