Voice quality and testing hub

Clear audio depends on codec compatibility and the network conditions that carry each packet. Use this hub to plan tests and interpret symptoms.

Guides

[Voice codecs](/voice-codecs/)

[QoS, jitter, latency, and packet loss](/qos-call-quality/)

[Voice quality testing](/voice-quality-testing/)

[Wi-Fi voice](/wifi-voice/)

[RTP port ranges](/rtp-port-ranges/)

[Packet captures](/voip-packet-captures/)

Test internal, carrier, Wi-Fi, VPN, transfer, DTMF, queue, and recording paths under representative load. Record measurements and user experience together.