VoIP for Linux Operating System

[LinuxeD]

Hi, well linux has been way to much advanced then windows operating system. But there is one thing that i have not yet noticed for linux. Are there any hardware and software for VoIP for Linux Operating System? Is linux VoIP ready? Well i would like to know about this stuff in detail. Hope someone helps me... Thanks in advance...

[FaMe FacToR]

There are VoIP software for Linux too... Infact VoIP softwares for linux are way too more then that available for windows. Well you can find a lot of softwares like Asterix, LinPhone, ZPhone, Twinkle. You can download these softwares for free as some of them are open source...

[Patio]

Linphone is an internet phone or Voice Over IP phone (VoIP). Features of Linphone :

• With linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging.
• Linphone complies to the SIP protocol, an open standart for internet telephony. Linphone should be able to interoperate with most SIP-compatible phones and proxies.
• If you subscribe a VoIP to PSTN (=classic telephony) account to a telecom provider, you can reach everyone that has a "classic" phone line. However those calls are not free since PSTN networks are costly.
• linphone is free-software (or open-source), you can download and redistribute it freely.
• linphone works under Linux and Windows XP

[Noverism]

Twinkle is a free software open source software application for Voice over Internet Protocol (VoIP) voice communications in IP networks, such as the Internet. It is designed for GNU/Linux operating systems and uses the Qt toolkit for its graphical user interface. For call signaling it employs the Session Initiation Protocol. It also features direct IP to IP calls. Media streams are transmitted via the Real-time Transport Protocol which may be encrypted with the Secure Real-time Transport Protocol (SRTP) and the ZRTP security protocols.

[SmirnOFF]

Asterisk is the world's leading open source PBX, telephony engine, and telephony applications toolkit. Offering flexibility unheard of in the world of proprietary communications, Asterisk empowers developers and integrators to create advanced communication solutions for free