yealinktg400

  1. Urgent: 3CX+ Yealink Sim gateway. Callers can’t hear us properly but we can hear them perfectly.

    We have a Yealink TG400 sim gateway (4 SIM cards) and I successfully connected it to 3CX 3 weeks ago. We tested and had perfect quality. 2 days ago callers (inbound or outbound) couldn’t hear us well when we spoke, there was a lot of breaking- they could only hear every other word, but we...
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