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Audio delay on inbound calls from PSTN

Discussion in '3CX Phone System - General' started by dweidler, Mar 26, 2010.

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  1. dweidler

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    I am using a grandstream gxw4104 PSTN gateway. When making outbound calls from voip to pstn, call quality is fine. Very responsive both directions. On inbound calls from the pstn to voip, there is a delay in the audio from when someone speaks to the other person hears of about 1-2 seconds. I have upgraded the firmware on my phones and gateways but still same problem. I can provide more info if needed. I am wondering if this is an issue with the gs gateway and if others have experienced simliar issues. I have a ticket open with gs as well but they are not much help.
     
  2. SY

    SY Well-Known Member
    3CX Support

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    Please make a wireshark capture (on PBX host) for the problematic call.
    It will provide enough information to answer your question.

    Thanks
     
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  3. dweidler

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    i tried uploading the cap file but it said it exceeeded the size limit. is there another method to upload? ftp?
     
  4. mfm

    mfm Active Member

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    you can use yousendit.com and provide the link
     
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  5. SY

    SY Well-Known Member
    3CX Support

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    You need to provide capture of call which has duration aprox. 20-30 seconds.
    total traffic - less then half of megabyte. If you compess it using zip then it will almost nothing.
    Do you plan to upload few megabytes? :)
     
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  6. dweidler

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    No it is very small, only 369KB zipped. This is the message when uploading: The file is too big, maximum allowed size is 256 KiB.
     
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