3CX Firewall Checker Client Application

Discussion in '3CX Phone System - General' started by herbst, Sep 12, 2017.

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  1. herbst

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    Hi,

    We have poor call quality, and checking our ISP.

    We try use Remote firewall/Nat test utility.
    Is it possible test, how audio packets lost?

    Calling *777
    Connection with *777 established
    Audio port is 7090
    Echo call - 2876 packets received

    What is mean last record? is it ok?
     
  2. AndreasPo_3CX

    AndreasPo_3CX Support Team
    Staff Member 3CX Support

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    Hi @herbst ,

    Do you have call quality issues only with external calls or internal as well?
    Also does this happen on different phones or is this a specific phone?
    For troubleshooting i would suggest that instead of using the 3CX Firewall Checker Client Application, try getting a wireshark capture on the PBX while you replicate the issue. Then listen to the different audio streams so you can determine where the audio problem is originating from. (Provider->PBX? PBX->Phone? Phone->PBX? PBX->Provider? )
     
  3. herbst

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    Hi,

    We have 3 ISP in test. all is ok via one (3G), but we can not use them in production.

    I should select from two 4G. Wireshark is ok for get technical data, but I was hoping to get the result faster and easier with the help of 3CX Firewall Checker Client Application utility. Like Ping Utility.

    thx in any case.
     
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