Client connectiong from external network

Discussion in 'Windows' started by Elysium, Feb 14, 2008.

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  1. Elysium

    Jan 21, 2008
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    I installed the 3CX Phone System some weeks ago and it works fine as long as the clients are on the same network/the same router. What I'd like to do is to allow people to connect from external networks. Here my problem begins. My external clients (those that are not on my internal network) can call each other but they hear nothing.

    I think the only solution is to use the new client - VOIP Client - 4132 because it allows you to login to SIP server (authentication type under login config). 3CX phone system authentication (under login config) does not work, because each client logs in with it's internal IP.

    I opened the ports on firewall:
    7000 - 7499
    9000 - 9009

    External client has the following port settings:
    SIP port: 5060
    First RTP port: 7000
    Last RTP port: 7499

    The 3CX Phone System has the following settings:
    SIP Port: 5060
    Ports to use for internal calls: 7000 - 7499
    Ports to use for external calls: 9000 - 9009

    It's said for the Ports to use for external calls (9000 - 9009)
    These ports will be used for calls placed via VOIP providers. Assuming your phone system is behind the firewall, you will need to open these ports on your internet facing firewall. To check if the ports are open through the firewall, please run the firewall checker test by clicking on the button below "Firewall Test".

    Monitoring the network I found the external client does something on port 9000.

    Should I set the range First to Last RTP port on client as 9000 - 9009 instead of 7000 - 7499?

    Is there something else I should be carefull about?
  2. darrellchapman

    Nov 26, 2007
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    I'm sorry no one's responded to this post. Did you get this worked out or do you still need help?
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