Fred Posner

FreeSWITCH Consultant / Support

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Fred Posner at ClueCon 2019
FreeSWITCH Support

FreeSWITCH Expert, Cluecon Speaker

Fred Posner provides FreeSWITCH Consultant services through and The Palner Group, Inc. Active in the VoIP community, Fred works to empower business through professional communication systems.

Core Belief

Your phone system must increase productivity.

If your current solution forces you to work within boundaries then you need to talk with Fred about switching to an open source telecommunication solution. As a FreeSWITCH Consultant, Fred first works to understand your business process. Then, it’s time to make your process more efficient and productive.

Contact Fred
FreeSWITCH Expert
FreeSWITCH Support


From Fortune 50 companies to family owned small businesses, Fred provides every customer with expert knowledge and real-world experience. Fred can provide you with custom programming, design, implementation, troubleshooting, emergency support, and more.

From call centers to database integration, carrier grade systems to simple IVR assistance, Fred's experience with Asterisk, FreeSWITCH, OpenSER (Kamailio), and other VoIP products will provide you the quality communications solution you need.


Fred actively participates in the VoIP Community, including ClueCon, ClueCon Weekly, and other groups providing support for Open Source and branded communication software.

Selected Video: Three Ways to Improve FreeSWITCH with Kamailio

Presented during AstriCon 2017.

SIP / VoIP Engineer

Open Source VoIP Consultant

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Kamailio Support

Kamailio expert, speaker, and consultant. Proudly working with Kamailio/OpenSER since 2005.

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Asterisk Support

Asterisk expert, speaker, and consultant. Proudly working with Asterisk since 2003.

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FreeSWITCH Support

FreeSWITCH expert, speaker, and consultant. Proudly working with FreeSWITCH since 2008.

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Fred Posner

Fred's primary role is a VoIP Consultant, specializing in Open Source software including Asterisk, Kamailio (formerly OpenSER), and FreeSWITCH. Fred Posner provides consultation services through The Palner Group and LOD Communications.