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One-way audio is frustrating because calls connect, but RTP/SRTP still fails — usually due to NAT, firewalls, ICE candidate selection, or inconsistent media anchoring in WebRTC-to-SIP setups.
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Great microphones and codecs won’t save a call if your network treats real-time packets like background syncs. On Wi-Fi 6/6E, quality of service (QoS) is the difference between crisp audio and “can you hear me now?”. This guide explains how DSCP and WMM map voice traffic across wired and wireless hops—and the practical tweaks that actually move the needle.
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