Having setup these systems before this is getting frustrating. I have SIP accounts working fine as needed, the SPA400 is a different story.
PSTN incoming is working but the quality is terrible.
There is a buzzing noise on PSTN calls (screenshot of SPA400 voice settings attached)
I have tried VAD on and off but that has not fixed the issue. The buzzing does not stop you from hearing the caller but makes it quite difficult. I am in Australia and believe I have the regional settings correct.
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