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Type: Posts; User: cool2criz

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  1. Help FreeSPS, seems your free service is not working by now

    To whom itmay concern,

    My name is Cris, from Philippines, I use voip service to call for softphone, but im behind a NAT firewall, and my ISP is blocking the SIP Port:5060
    Since then, I found...
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    Help, Who is working here in VoIP

    Hello guys,

    I have a question regarding on Voice Over Internet Protocol.

    I'm using a softphone on a PC, and I am behind a non UPnP Symmetric NAT, meaning to say, the codec called SIP protocol...
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