SBC Archives - Ryan Thomas Huff

Illustration of two desk IP phones connected through a firewall and a session border controller, with RTP audio flowing one way and the return stream blocked at the firewall

October 20, 2026

SIP One-Way Audio: The Doorbell Rang, So Where Did the Conversation Go?

Calls connect, but one side can't hear. Here's why SIP one-way audio is almost always a media[…]