No audio when connecting from a mobile.

Discussion in '3CX Phone System - General' started by renaissance, Aug 13, 2007.

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  1. renaissance

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    Problems description:

    3CX server -> local ip 192.168.0.1
    linksys gateway -> local ip 192.168.0.252
    mikrotik router -> local ip 192.168.0.254 -> internet ip 193.227.*.*

    My mobile phone -> 10.54.*.* (local address)
    My mobile provider -> router 212.10.*.*

    I want to connect to 3CX from my Nokia N95.
    When connecting from local wifi, everithing is working fine, but when I try to connet from T-mobile's HSDPA there is a problem.

    It registers succesfully, but when creating audio channel, 3CX uses the wrong IP number 10.54.*.* to reach the phone.


    Any suggestion?
     
  2. SY

    SY Well-Known Member
    3CX Support

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    SDP delivers information regarding audio stream destination. Your phone specifies 10.54.*.* instead of reachable IP.
     
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  3. jduncan

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    STUN

    You need to specify a STUN server on your mobile. This will allow it to transfer your external public IP which will be reachable by your media server.
     
  4. renaissance

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    There isn't any way to change STUN server on Nokia mobiles.
    Just by SMS provisioning from the voip provideres.

    I tried with Sippstar, it worked perfectly.
    It also works with many voip service, even if I don't set the STUN. :(
    How can they find the right IP?
     
  5. 5qg4

    5qg4 Active Member

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    Hi renaissance,

    Please check your 3CX console log. Can you found the STUN server resolve the public IP for the box?

    Regards,
     
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  6. Alexpo

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