nat

  1. ronenba

    V20 cannot modify NAT

    after updating to V20 NAT status is NO I changed it to STUN after provisioning it changed back to NO is there a place I can force NAT to stay STUN ? (I use the domain of the PBX)

  2. Modifying RTP/WebRTC ports

    Good day, I'm running multiple own-hosted/on-prem 3CX servers behind a Firewall and NAT. Most of those servers share an external IP address and have different port ranges for their SIP and tunnel traffic. Only a few of them require the webclient so I've been attempting to forward the WebRTC...

  3. Firewall 3CX PhoneSystem Media Server failed

    Hi everyone, i recently changed my 3cx server machine and restored 3cx from backup. No changes made to network infrastructure. Router: FritzBox 7590 with server ip exposed host enabled Firewall: Windows Firewall with all inbound roules for 3cx setted. I have one way audio on outbound and...

  4. Registration and media issues with overlapping subnets between sites

    Similar to a regular trunk, is it possible to manually set the SIP contact and SDP connection fields for a gateway trunk? In fact, was able to set the SIP contact in the outbound parameters but can’t find where and how to update the SDP connection field for a gateway trunk, ie: Patton...

  5. Yealink T54W No audio on LAN between other IP Phones

    I'm fairly sure this has nothing specifically to do with the yealink phones, rather how 3cx handles IP phones in general (speculating at this point). I recently have implemented hairpin NAT for our 3cx server to avoid split-dns for LAN and WAN clients. This is working as expected so far...
    • MSET
    • Thread
    • lan nat no audio on calls remote ip phone stun
    • Replies: 7
    • Forum: Yealink

  6. Dinstar SIP Trunk can't register to local SIP server

    I'm trying to use a Dinstar UC2000 gateway as a trunk for my 3CX SIP server which I'm running as a virtual machine. The gateway is directly connected to my computer via ethernet. I'm able to ping the gateway from the VM but I cannot ping the VM from the gateway. Also, my firewall checker for the...

  7. Patton M-ATA-1A and NAT issue

    Hello, Seeking advice here. We have a new customer on a hosted Debian 3CX (3CX and customer are therefore not on the same LAN). Problem is with a Patton ATA which is NATed behind customer firewall. Everything works fine with the desk phones however. Trying for the first time a Patton M-ATA...

  8. Maxcom SIP Trunk Mexico

    Hi all, we are about to install a 3CX at a client using SIP trunk from Maxcom in Mexico. The trunk provided uses IP base authentication and it currently working with and old snomONE IP PBX. All these inside the premises of the client. On our initial tests, we have modified the firewall rules to...

  9. Phones behind nat needs portforward on router

    I'm trying to run 3cx on a server in our hosting center, and the phones in branches behind nat routers. Were using various (older) cisco/linksys phones. It seems this issue is still not fixed. https://www.3cx.com/community/threads/hosted-3cx-testing-remote-extensions-wont-auth.29506/ If I...

  10. Solved Installing a remote SPA3102 behind a NAT router

    Hello I have installed a 3cx server on Amazon AWS. We are using a Linksys SPA3102, not in the same network of 3cx server (obviously). We define a Sip Trunk (Gateway Device) in 3CX server using the remote FQDN and SIP port (5063) of the SPA3102 (and the adequates ports forwarded in the remote...

  11. NAT 5060 firewall test head scratcher TG-1 modem

    Hi all, Appreciating the info on the forum. Im just converting to 3cx from free pbx and running into a NAT firewall problem I've had free pbx/asterisk working for about 6 months on the same equipment. Fairly happy but call quality suffered sometimes, plus I like to tinker and 3cx look slick...
  12. stoellchen

    Solved T48G Provisioning and register Account

    Hello together I have some problems and questions concerning registering accounts with a yealink SIP-T48G. I've installed the newest firmware on the phone: T48-35.82.0.30.rom I've the newest version of 3CX installed. I have 11 SIP-trunks successful working Our extinsions running with 3CX-App...
3CX Logo Footer Copyright © Sitemap Privacy
Top Bottom