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  1. Solved One way audio

    Hi, I installed 3CX on my company server, all of functions work fine, or external sip account work only one way audio. I used phones SPA303-G2, Server is Windows server 2016, and router is TL-ER5120. SIP provider is Slovak Telecom. from slovakia. Thanks for answer.
    • ZeIRO
    • Thread
    • audio one problem way
    • Replies: 2
    • Forum: Other
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