stun

  1. Michael Menor

    Direct SIP (STUN) phone randomly loses registration

    We have one extension with the "Direct SIP (STUN - remote)" provisioning method. The phone is a Grandstream GXP-2140. From time to time the phone will go "unregistered" and the only resolution is to perform the following: In 3CX Mgmt Console, edit the Phone Provisioning settings Change the...
    • Michael Menor
    • Thread
    • direct sip grandstream grandstream 2130 rps request error stun stun remote v16 v16 sp3
    • Replies: 11
    • Forum: Phone System / PBX

  2. Other vendors don't seem to need a SBC...

    I have been installing 3CX for a couple years now for small to midsize companies with 15-20 Yealink T42S and T46S phones -- all of them on SIP.US trunks. About half of them have SBC's (the ones who have complained about choppy/ghost calls). We have a client using vonage business and about ~40...

  3. Stun stopped working yesterday at 05:30 CET?

    Since yesterday about 5:30CET a 3CX system which is set to dynamic IP refuses to register the trunks because "no transport found". If I deactivate Stun and set to static IP everything works fine. However there was no change, and it did work ok with Stun since the last update. It is the only...

  4. HTEK / STUN Provisioning not working

    Hi all, I have a remote site who wants to try 3CX. I claimed we could ship-drop directly to the remote site without having to land the phones to our office first for configuration. Well.. One phone landed on my desk. And I just wanted to demo this for concept of proof to my coworkers. My...

  5. Outbound calls won't complete from 3CX client for windows or Yealink T58A

    Hello everyone I am having issues making outbound calls from a Yealink T58a that is connected to the phone system via STUN and the 3CX Windows client. Both devices are registered to the same extension. The PBX is hosted with Google. I have no issues receiving calls to either and can...

  6. Solved Phone not registering through STUN

    Hello, I am new on 3CX and had gone through the following thread link but still facing the problem with phone registration. Following are the installation details 3CX Version: 15.5.0 Server Installation Location: Google VM Number of Extensions: 20 Extension configured through STUN...

  7. STUN phones with WAN failover

    Hi team, I'm back with another re-occurance of the same problem that I've written about earlier: https://www.3cx.com/community/threads/yealink-t58-407-proxy-authentication-required.58528 The same client had the same situation this week, and I think I've narrowed it down in my head as to what...

  8. STUN-Snom D785-Problems-SRAPS?

    Hi All, Hoping someone can help.. I am having problems with the Snom D785 phones. I am trying to provision the phones using STUN, no SBC, 3CX hosted cloud PBX, phone version 10.1.27.1, all ports forwarded on my router and SIP ALG is off. 3CX dashboard shows the RPS request sent successfully...

  9. Solved 3cx server receives STUN requests

    Hello, Today I noticed that our 3cx server receives some STUN requests from public IP addresses and responds to them. My question is: How normal is this? Could this be a security issue? I would only expect 3cx to initiate STUN requests, rather than receiving. Please let me know if you need any...

  10. Unable to add Extensions on yealink Base Station W60B (stun)

    Hello, I have installed a new 3cx server, I want to connect my phones using STUN. I do not have any problems connecting my softphone and my phones, I can connect my yealink w60b base station to 3CX (latest firmware installed, it appears in) but I can not provision extensions, I get this error...
  11. Andriy

    STUN, ports and SBC

    Hello, I have 20 Fanvil X3S phones in my office connected to 3CX iin cloud via STUN. However, they where all provisioned with same SIP port 5065. This works fine and I did not have any problems so far, however, the tutorial below clearly states that I should either increment ports for each...

  12. Getting "Call Failed" on remote STUN-Remote phone

    Hi, I have a remote phone that is on the latest firmware which when trying to make calls is showing the message attached in the photo We can hear audio in but no audio out. Is this most likely a firewall issue as the users extension is enable to be used outside of the LAN. Thank you for all...
  13. LouSmith

    Provisioning causes loss of local network connection

    We set up on an OVH vps that works fine with Windows softphones as well as both android iphone clients. However, the 3 Yealink T42S deskphones (new but have current firmware installed) using STUN are a total bust. All are configured according to 3cx training videos but, after the phone is...
  14. Vladimir Vasic

    Can not choose STUN in provisioning method dropdown list

    I am switching from Asterisk based PBXes to 3CX and need to provision a remote Cisco SPA303. The manual says just to choose the STUN provisioning method in the dropdown box which is pretty straightforward. However, in the provisioning method dropdown box the only choice is "Local LAN" and...

  15. v15 stun issues

    Hi, We just installed a hosted 3CX v15 SP1 and we seem to have some issues with STUN at the remote extensions. We are not using a SBC (and don't plan to). The phones we are testing with are Yealink T19. If we use the default phone template provided by 3CX the PBX is set as the STUN host with...

  16. Using the public IP as the server host - Yealink remote STUN extensions

    I'm wondering if any issues will occur if I replace the FQDN address with the public IP address of the 3CX server, on a Yealink STUN configured phone. Asking because our clients FQDN is set to expire soon.
  17. Michael Menor

    No Audio on Calls (3CX V15)

    I've already opened a case with 3CX, but I figured I'd post it here just in case the community could provide some insight. So here's what going on - we are not getting any audio on the phones (inbound, outbound, ext to ext). However, I have tested a successful call from the 3CX client on a Mac...

  18. Remove stun DECT functionality

    I have just seen that the stun functionality for the DECT has been removed in V15, we lose in functionality for the hosting mode, think you give this function or we have to choose another solution
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