Kamailio is an Open Source SIP Server released under GPL, able to handle thousands of call setups per second. Kamailio can be used to build large platforms for VoIP and realtime communications Ð presence, WebRTC, Instant messaging and other applications. It can also easily be applied to scaling up SIP-to-PSTN gateways, PBX systems or media servers like Asterisk, FreeSWITCH or SEMS.
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Kamailio SIP Server is the #3 ranked solution in top Unified Communications solutions. PeerSpot users give Kamailio SIP Server an average rating of 10.0 out of 10. Kamailio SIP Server is most commonly compared to 3CX Live Chat:
Kamailio SIP Server vs 3CX Live Chat. Kamailio SIP Server is popular among the large enterprise segment,
accounting for 50% of users researching this solution on PeerSpot. The top industry researching this solution are professionals from a
financial services firm, accounting for 15% of all views.
As of July 2025, the mindshare of Kamailio SIP Server in the Unified Communications category
stands at 9.8%, down from 11.5% compared to the previous year, according to calculations based on PeerSpot user engagement data.
Unified Communications
Top industries
By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
11%
Healthcare Company
9%
Real Estate/Law Firm
9%
Comms Service Provider
8%
Media Company
8%
University
8%
Educational Organization
6%
Insurance Company
4%
Transportation Company
4%
Non Profit
4%
Government
4%
Performing Arts
2%
Legal Firm
2%
Recreational Facilities/Services Company
2%
Manufacturing Company
2%
Individual & Family Service
2%
Hospitality Company
2%
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