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  • Users: elperkins
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  1. elperkins

    Audio problem SIP phone

    Hi, I need help, I have a H3550 + HG1500 system, when I try to establish a call from internet (SIP phone), the extension (TDM)rings but dont have audio. HG1500 is on DMZ port of my router, all ports was opened. Any idea? Thx!!!

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