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. The top industry researching this solution are professionals from a
financial services firm, accounting for 16% of all views.
As of June 2025, the mindshare of Kamailio SIP Server in the Unified Communications category
stands at 9.7%, down from 12.2% 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
16%
Computer Software Company
12%
Real Estate/Law Firm
10%
Comms Service Provider
10%
Healthcare Company
10%
University
8%
Media Company
8%
Educational Organization
6%
Non Profit
4%
Government
4%
Individual & Family Service
2%
Performing Arts
2%
Hospitality Company
2%
Recreational Facilities/Services Company
2%
Insurance Company
2%
Legal Firm
2%
Manufacturing Company
2%
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