Kamailio (formerly OpenSER) is a free and open-source SIP server. Kamailio can be used to build a VoIP server, an IMS server, a VoIP gateway, a SIP-to-PSTN gateway, or a SIP PBX. Kamailio is a very fast and scalable SIP server that can handle thousands of calls per second. Kamailio is written in C and runs on Linux, BSD, Solaris, and Windows. Kamailio is very modular and can be extended with modules written in C, Lua, Perl, Python, and Ruby. Kamailio modules can be used to add features such as presence, instant messaging, and call recording. Kamailio can also be integrated with third-party applications such as Asterisk, FreeSWITCH, and OpenSIPS. Kamailio is released under the GNU General Public License. Kamailio is sponsored by Asipto.
Kamailio (formerly OpenSER) is a free and open-source SIP server. It is able to handle thousands of call sessions simultaneously and has a modular design which makes it easily extensible. Kamailio can be used to build a VoIP server, an instant messaging server, or a presence server. Freeswitch is a free and open-source telephony platform that was created in 2006. It is written in C and designed to be scalable and highly extensible. Freeswitch provides a broad range of features, including voice and video calling, conferencing, VoIP, and more.
Kamailio is a powerful SIP server that can be used to build a robust VoIP platform. It is scalable, reliable, and offers a wide range of features. FreeSWITCH is a robust telephony platform that makes it easy to build scalable VOIP systems. By combining these two powerful tools, you can build a VoIP platform that is both scalable and feature-rich.