Fred Posner

Kamailio Consultant, VoIP Engineer, SIP Expert

FreeSWITCH Consultant / Support

Providing FreeSWITCH support and consulting.

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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.

Photo of Fred presenting at ClueCon
Fred Posner speaking at ClueCon

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.

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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.

Expert consultant services provided remotely or on-site with 24/7/365 response available.


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

Presentation from ClueCon 2019

Open Source VoIP Consultant

SIP/VoIP Engineer specializing in Kamailio, FreeSWITCH, and Asterisk.