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Thread: GXV3140 & Quadro4x

  1. #1

    Cool GXV3140 & Quadro4x

    I have been having problems with my call statistics not reporting properly with my Grandstream GXV3140s. A perfect example of a call is the following:

    Under Call Statistics I found a call with the 3140 reporting :

    Codec: PCMU, Quality: 5 (very bad)

    I click the link and the below reports:


    Quality: 2 (good)

    Local: 192.168.1.1:6074, Remote: 192.168.1.227:25924, Quality: 1 (excellent)
    RX Codec: PCMU
    Received Packets: 8636
    Received Packet Size: 160
    RX Lost Packets: 13656 (61.26%)
    RX Jitter: 19
    RX Maximum Delay: Undefined
    RX Delay Increase Count: 0
    RX Delay Decrease Count: 0
    TX Codec: PCMU
    Transmitted Packets: 8642
    Transmitted Packet Size: 160

    Local: xxx.xx.xxx.xxx:6078, Remote: xx.xxx.xxx.xxx:37476, Quality: 2 (good)
    RX Codec: PCMU
    Received Packets: 8642
    Received Packet Size: 160
    RX Lost Packets: 1 (0.01%)
    RX Jitter: 23
    RX Maximum Delay: 123 ms
    RX Delay Increase Count: 0
    RX Delay Decrease Count: 0
    TX Codec: PCMU
    Transmitted Packets: 8636
    Transmitted Packet Size: 160


    I see a huge loss in received loss packets between the phone and the PBX. Now I happened to be on both ends of the call and no problems on call response along with good call quality.

    What could be causing this? This is for a client and they are not happy seeing the instability in the reporting. Thank you ahead of time for your feedback.

    FYI I am running Epygi's latest firmware - 5.2.26 - which supports the Grandstream 3140.

    Regards,
    Shawn

  2. #2

    Default

    Hi,

    Thank you for mentioning this issue. BTW this is not specific for Grandstream 3140. Maybe this is a SW bug. Will analyze and inform about the results

    Thanks
    Ashot

  3. #3

    Default

    Shawn,

    Have you confirmed that the Epygi does not have a duplex mismatch with the switch? It is possible that the packet loss is correct, but the call quality still sounds good. Just a thought...

    Ron

  4. #4

    Default

    Ashot,
    thanks...let me know what you find. I also did a netcapture.cgi and sent it into Epygi to see if they could find what is happening. Consistant if I make multiple calls...most very bad some good and only with the 3140... no matter who I call or calls in.

    Ronortiz,
    You make an interesting point so I went out and checked. The LAN port is plugged into a 10/100/1000 Gig Adtran switch set to auto. I am not getting any errors on the port of the switch and no errors on the port of the Epygi all looks good as far as packet transfer goes between the LAN of the PBX and the Switch...the other side, the 3140 and the switch the same. Again, consistant between the 3140 and the pbx. I have 18 other GXP2000 Grandstreams with what appears to be good reporting.

    Thanks!

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