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SIP not working after few days. Reboot solve the issue. How to troubleshoot?

PascalN

Hi, had the same issue with UTM before. The first few weeks with XG I had no issues with VOIP Calls. Someday it started again. The main issue is, at some point, I'm not able to call from inside to outside. I hear just nothing. Sometimes I'm not able to call from outside to inside. After a reboot of XG, everything is working fine again. At the moment I don't have any special Firewallrules regarding VOIP/SIP. My question here is, how can I troubleshoot this issue? I don't see anything related to this in FW Logs or in any other log. I can't spend a lot of time in troubleshooting when the issue persists, because when its persist someone will do a call RIGHT NOW! and I have to reboot my XG :)

I have:

Sophos XG home SFOS 17.5.1 MR-1, SIP module unloaded

Auerswald 5020 VOIP PBX

VOIP Provider: 1und1 germany

 

My Top Firewallrule at the monent is just a allow any from LANtoWAN (Rt,NAT,LOG) and the default one at the bottom.

Here are my Voip-Providersettings

Thanks

Pascal



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  • 0 in reply to Aditya Patel

    Thanks Aditya Patel,

    started with "set advanced-firewall udp-timeout-stream 150" and will see what happens (or hopefully not) in the next days :)

  • 0 in reply to PascalN

    Still the same issue :(

    Today I was not able to call IN, but only with mobile phones (tested 2 different, with different providers). With my company phone, everything was fine. So I ran

    1: tcpdump 'host PBXIP

    2: tcpdump 'port  5060

    3: everything was working again :/

     

    So, what tcpdump parameters would be the best to figure out those kind of isues? Maybe dump to an external storage over a longer time period?!

  • 0 in reply to PascalN

    Hi Pascal,
    i had your reported issue with the ISP & Phone provider and PBX manufactor only, if SIP module is enabled at the XG.

    For Auserwald, i print you the difference values between your and my config :)

    1. unload SIP_module trough command prompt at the XG.
    2. The following values are different to one of my Auerswald PBX configs.

    Registar
    5 min (not 30 min set)

    SIP Session time = disabled

    Outbound proxy = disabled

    SIP STUN intervall = 15 min (mot 5)

    NAT keep alive 180 sec (not 45)

    DTMF signalling = both (not only 1)


    ---

    Good luck
    Chris

  • 0 in reply to ChrisGER

    Hi Chris,

    thanks for your reply. I will try your settings and see what happens :) (or not).