Problem to establish SIP call on Windows 2003

Discussion in '3CX Phone System - General' started by Anonymous, Nov 27, 2006.

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  1. Anonymous

    Anonymous Guest

    I installed the beta 3 on a server based with windows 2003 and work all fine, but when i try to call an extension there is no sound.

    Then i installed on my PC running Windows XP and its work without problem what is can be?

    Any ideas...??

    i appreciated any help.
  2. Nick Galea

    Nick Galea Site Admin

    Jun 6, 2006
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    No sound - firewall problem

    Does the phone ring but you dont hear the other person? If yes this points to a problem with the actual RTPsession, i.e the voice stream. It could be blocked by a firewall on the Windows 2003 server?
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  3. Anonymous

    Anonymous Guest

    thnks for the reply, i found the problem and it is that if the server are in a different subnet of the SIP users there are no sound...
    i installed a VPN to connect both networks and work without a problem but there is no other way to solve this issue?
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