Sara_Donald Posted January 23, 2008 Report Share Posted January 23, 2008 Hi, I have this problem where when I dial out the pbx gives me this extremely loud scrambling noise until the call is connected. I use a VPN to route VoIP. I have allowed the RTP ports outbound and all other associated L2TP VPN ports outbound to the server. The sound is almost like a fax sound and underneath you can hear the dialing taking place but it doesnt shut up until someone answers the call then everything is crystal clear. Im using the latest Windows version on Vista. Can someone please help me as I never used to get this problem in the earliest version 2. Regards, Sara. Quote Link to comment Share on other sites More sharing options...
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