stun

  1. gregory.b

    STUN SERVER UNREACHABLE

    Hello, I have an issue with a 3CX Version 20 Update 7 ( Build 1060 Release) As for information everything was working fine 3CX has been installed for several years now. Am from Mauritius Island Operator for Internet is Mauritius telecom My 3CX is connected on a ROUTER that is connected...

  2. Reverse proxying 3CX no audio

    Hi, As our 3CX instances number is rising, we are in a process to merge them under a single WAN IP using a NGINX or HAproxy server. So far the web page is showing correctly, however we are facing some issue: Web console calls are working but no audio is going through. Upon further...

  3. V20 - Connection Issues - Stun - Remote Sites and Users

    We manage loads of 3CX tennants, The move to V20 we have tried to embrace. But we seem to always get stuck with the same problem. This is the lack of connectivity options for remote workers and remote sites. So it would seem we need a router phone or an SBC at every site. So huge expense...
    • MarkyMark69
    • Thread
    • remote users stun v20 wifi
    • Replies: 24
    • Forum: Fanvil
  4. 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)

  5. Stun provisioning going away in v20

    Hello. In general, we don't provision phones via Stun / Direct SIP, but there are a few stragglers where a user wants a desk phone at home; we're just talking about a literal handful out of 2000+ extensions - maybe 2-4 users. This feature works well and has been reliable for us. Can you...

  6. SNOM in STUN Can't call Outside anymore..?

    Hello, big problem since 1 week with 3 customers. I've been hosting 3CX std's for several years for my customers (about 15) Monday evening I do a maintenance of the cluster that hosts the VMs (switch from one node to another, etc. classic) I check that everything is ok, the 3CX are full up to...
    • WellBeIn
    • Thread
    • snom 715 stun
    • Replies: 9
    • Forum: Snom

  7. Phones Tab: Local vs Public IP Addresses

    I have a live PBX system with around 40-50 handsets. The client has a firewall which has been set up and working for a few years now. SIP ALG is turned off. However, 2 of the handsets out of the 40 are showing a local IP address in the Phone's tab, while every other handset is registering as a...

  8. stun.3cx.com - Are there updated DNS entries for 3CX subnets ?!?

    Dear 3CX, I'd like to come back to an old forum post from late 2019 (https://www.3cx.com/community/threads/firewall-tests-stun-eu-3cx-com-and-51-91-201-8x.68865/). In this post @YiannisH_3CX states that the DNS settings might be updated. Anyhow, they weren't updated so far. Do you have any news...

  9. STUN - Port Question

    Hi all, I have a quick question please, I have a number of locations with DECT devices and I am going to do all the Firewall rules required to make them work properly but I have forgotten if each DECT will need different ports or if using the same port would be fine as they are in different...

  10. No RTP - DECT W60B

    Hi there, I have had reports of no speech/dial tone for a list of extensions that are all registered against all DECT devices, Initially there were some Firewall issues and the Firewall checker was failing. I have now got the checker passing all the rules, as well as all DECT Base 1 and Base 3...

  11. 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

  12. Updated: Template Support for Yealink T4x SIP over TLS & SRTP using Remote STUN

    Previous Thread: https://www.3cx.com/community/threads/template-support-for-yealink-t4x-sip-over-tls-srtp-using-remote-stun.74747/ Update: Due to COVID-19 many of our employees are working from their home offices where it'd be impractical to deploy an SBC. The best solution is "Direct SIP (STUN...
    • ltctech
    • Thread
    • encryption remote secure sips srtp stun template tls yealink
    • Replies: 1
    • Forum: Yealink

  13. Solved 3cx hosted on AWS. GXP2170 will not provision using STUN

    Hello, A long time voip.ms reseller here. With everything going on other there I decided to switch to a new sip trunk provider and host my own pbx on aws with 3cx. I've mainly used free pbx but I want to use 3cx since it is more user friendly. Anyways I'm desperately trying to get all my clients...
    • medic0305
    • Thread
    • provisiong remote stun stun stun provisioning
    • Replies: 2
    • Forum: Other

  14. Solved Yealink T20P - STUN autoprovisioning not working

    3CXon Debian (cloud hosted) 3CX Version number: 16.0.9 Provisioning Method: STUN All Firewall ports are open (including STUN ports) We have a T29G, a T21P_E2 and some W60B/W52P hardware that works perfectly, however the T20P devices does not register over STUN. I have tried all versions of...
    • carmen.leroux
    • Thread
    • stun stun provisioning yealink yealink t20
    • Replies: 4
    • Forum: Yealink

  15. Solved New static IP address and the firewall now fails

    Hi all, I recently had my internet plan changed and I upgraded to a static IP. Since then when I run the firewall test my STUN server fails resolving 'stun-au.3cx.com'... failed (How to resolve?) resolving 'stun2.3cx.com'... failed (How to resolve?) resolving 'stun3.3cx.com'... failed (How...

  16. Solved 3CX STUN server not replying

    Hi folks I have just noticed that the 3CX STUN servers are not responding so my dynamic IP does not update. My configuration is for stun-eu.3cx.com, stun2.3cx.com, stun3.3cx.com Port 3478, none of which reply to ping or a telnet connection. Have these servers changed or is there an outage? I...
  17. theMightyMacBoy

    Solved Yealink T4XG/S Will Not Provision STUN

    As the title says, I am having issues getting our Yealink T42G and T46S phones to provision via STUN. Specs: Windows 10 3CX 16.0.622 T42G Firmware 29.83.0.130 Stock Template Firewall Sophos UTM SG Valid HTTPS cert on 3CX Web Services We have all of the required firewall ports open and DNAT...

  18. Template Support for Yealink T4x SIP over TLS & SRTP using Remote STUN

    Due to COVID-19 many of our employees are working from their home offices where it'd be impractical to deploy an SBC. The best solution is "Direct SIP (STUN Remote)". The catch is that all SIP signaling and RTP audio is sent in the clear for anyone to intercept. It's trivial to create a custom...
    • ltctech
    • Thread
    • encryption remote secure sips srtp stun template tls yealink
    • Replies: 5
    • Forum: Phone System / PBX

  19. Direct SIP - Remote STUN provisioning process

    Hi everyone, I have been watching this video about provisioning remote extensions: Here is my understanding about provisioning using STUN: -3cx admin assigns the MAC address of the remote IP phone to an extension and selects "Direct SIP - Remote STUN". At this point the IP phone's...

  20. STUN Failure after SSL Renew

    Hi all, It has now been 3 months since our first system went in, the SSL renewed overnight and all phones in the morning had an outbound calling issue saying STUN Call Failed... after a reboot of all phones it fixed the issue. However, will this happen every three months? Please can someone...
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