Russell Zachary Feeser RZFeeser-Avaya_SMGR_login_failed_cropped - Russell Zachary Feeser

RZFeeser-Avaya_SMGR_login_failed_cropped

By Russell Zachary Feeser|June 9th, 2015||0 Comments

About the Author: Russell Zachary Feeser

In 2011 I sent my first SIP INVITE, and I have been studying telecommunications standards ever since. Instructor for SIP, IMS, Voice Over LTE, WebRTC, SDN, and Avaya Aura courses. Founder of the training organization IRIS7.

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