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Another client continued to have this issue after updating the tunnel setting. Uninstalling and reinstalling the app on IPhone, along with a new Welcome Email did the trick.

Now is see it! "Use 3CX Tunnel for remote connections (3CX Client only)" was not checked. That fixed it--thank you!

I don't see any 3CX Phone options. I know they used to be there! Could this have been disabled system wide?

Version is Standard 15.0.62928.5 Block Remote Tunnel Connections is NOT checked on the extension options.

Yes, tried from multiple locations / ISPs (East Coast & West Coast USA). I don't see any errors in the log. Here is a recent attempt from an Android client. The callee got the call, heard nothing and hung up; I heard nothing on my end, too. 04/26/2017 4:57:43 PM - Leg L:89.1[Extn:316] is...

The machine is using a Windows Firewall and we are using a Juniper Firewall Router. I haven't tried wireshark yet.

Yes; it passed today.

Remote clients using IP phones and 3CX Proxy Manager are working fine, but today we noticed that audio does not work on IPhone, Android and PC 3CX Phone clients when remote. I have uninstalled and reinstalled a new client on Android, with a new welcome email settings. I have tried the option of...

Thank you. The load balancing is at the WAN / ISP level; we have only one VOIP provider. With the previous firewall, we have no problems.

I've changed my router to a Juniper SRX from a Juniper SSG and have implemented load balancing with two ISPs. When either one of the ISPs is down, outgoing calls work. When both are connected, outgoing calls fail with the error: Call or Registration to 1112223344@(Ln.10000@Nexvortex) has...

NexVortex. The IVR update mentioned in this thread solved the problem: https://www.3cx.com/community/threads/fax-server-issues-488-not-acceptable-here.46803/#post-188951

We just started having a problem with fax too. It has worked until a recent update. See this post: https://www.3cx.com/community/threads/version-15-added-t38faxmaxifp.46832/

My VOIP provider needs me to remove the a=T38FaxMaxIFP setting to allow incoming faxes to function. It seems the recent upgrade to Version 15 added this new parameter. When I removed it from the Settings / Parameters list, it still came through, but with a different value (200). Is there a...

See the attachment for the section, "Accept requests from these HTTP referrers (web sites)". I've set the HTTP referrers to my domain (*.foo.com) Is this correct or necessary? I've set PUSH settings in 3CX and reinstalled the configuration file on the 3CX App several times--just did it...

When configuring the API Key at Google, what should I enter for the HTTP Referrers? Also, how do you confirm that PUSH for Android is working. On my Motorola Tubro 2, the status is "PUSH Disabled." How do I enable it? I'm using 14 SP3.

While performing the upgrade from 12.5 to 14, I get an error, "There was an error during the Windows features configuration process. Your original configuration will be restored." Unfortunately, I do not have a copy of the log file. Any ideas on how to get around this? Box is virtual Windows...

Anything else I can use to troubleshoot this? Naturally this effects the heaviest user I have.

I don't see any activity in the log. I can telnet from the client using port 5000.

I have several clients that can no longer connect using MyPhone. They are outside of our firewall. They can browse to 3cx.mycompany.com:5000/myphone. From here I can install and uninstall the application but when i attempt to login using the web page, it fails with error message, "Cannot...