network failure

  1. Yealink T57W - random network service reset

    Good day, I hope this post is in the right place, and I apologize if the text is too long. Structure Overview: We operate approximately 1,200 Yealink T57W phones across 25 branch offices. Each branch has an SBC, and the phones are located in VLAN 160 (our phone VLAN). Here at the headquarters...
    • rikels
    • Thread
    • network failure random
    • Replies: 7
    • Forum: Yealink

  2. Calls not connecting

    We've recently setup a client with their own privately hosted Linux based 3CX server hosted on ESXi 6.7.0 Update 1. They are still in the testing phase and every couple of weeks they are unable to connect when making outbound calls. It rings for them but doesn't connect at the SIP provider...
    • AndreHTP
    • Thread
    • 3cx linux network failure self hosted
    • Replies: 5
    • Forum: Other

  3. Intermittent disconnections on 3cx webclient and the phone

    Hi, I have a 3cx installation sitting on Debian install on my windows server (running hyper-v). I also have an old Elastix installation on another server which has my physical Sangoma analog card for E1. There is a sip trunk bridging the Elastix calls to the 3cx end. Both of them are on the...

  4. Solved DNS resolution/ Network failure

    About a week ago we suddenly started getting this error: Registration at CallCentric has failed. Destination (sip:[email protected]:5060) is not reachable, DNS error resolving FQDN, or service is not available. This eMail was send from an 3CX SMTP Relay Service. If you suspect the...
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