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SIP trunk typically use very dated codecs like GSM at super low quality. https://en.m.wikipedia.org/wiki/Full_Rate https://en.m.wikipedia.org/wiki/Full_Rate >
by bdhcuidbebe 2y ago
SIP trunk typically use very dated codecs like GSM at super low quality.
https://en.m.wikipedia.org/wiki/Full_Rate https://en.m.wikipedia.org/wiki/Full_Rate
> The quality of the coded speech is quite poor by modern standards
> The codec is still widely used in networks around the world.