Call initiated behind router in the same LAN

Discussion in '3CX Phone System - General' started by tasnimcyber, Feb 15, 2007.

  1. tasnimcyber

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    Dear 3cx IP PBX gurus,

    We are desperately in need of your assistance in regards to the IP PBX. Please review the following scenario;

    If PBX and clients are run on a regular LAN, on 192.168.169.X subnet, everything works great
    > If PBX and client on subnet 192.168.169.X and an another client behind a router on subnet 192.168.0.1 with NAT turned on at the router, then the communication only works 1 way. Say 192.168.169.120 is User A dan 192.168.0.20 is User B who sits behind a router. Our problems are the following;

    > User B can register to IP PBX in subnet User A. All status says OK
    > User A can make calls to User B and the other way around as well
    > User B can execute call to voicemail to IP PBX in User A's subnet, BUT cannot hear IVR prompts
    > User A make a call to User B, it is connected. User A CAN ONLY hear User B, and User B CANNOT hear user A.
    > All ports on both UDP dan TCP have been opened in the router.

    We hope that you can provide us with a more detailed instructions on how to execute on the above configuration even with the VPN. Another thing on 3CX, the performance (user accounts, voicemails, concurrent calls) of the IP PBX is directly related to the hardware, correct ? Your rule of thumb states that each call consumes 64 Kbps for a decent use of VOIP. Does this 64 Kbps apply for both ways or just 1 way ?

    Thanks in advance and your help is greatly appreciated.

    ps: Good luck with the development. My personal favorite feature of the 3CX IP PBX is the simplicity of operations and management. You may want to keep it that way and focus on the IP PBX, basic IVR, compatibility with other voice gateways and VOIP providers, and basic voicemail. Small business just need those to save on communication cost. You're developing a killer application, sir !! =) Very nice indeed.[/img]
     

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