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I have option 66 configured. I think it's being blocked at the firewall.

I am making a change in my network that requires me to add a firewall between my primary sites and remote sites. The remote sites are connected to the main site by dark fiber. These sites and phones exist now, but have been connected by a L3 switch and it's been working. I will be adding a...

I'm on Windows. Version is 15.5.15502. Is that SP6? I have already created a new server and completed the install but stopped at completing the restore wizard. I started the wizard and pointed to the backup file just to test how long it takes to import it and it was only 5 minutes. I didn't...

I am still on 15.5, I need to upgrade to 16. I am running 3CX on hyper-v with a static IP And static MAC. We have no issues. I am trying to upgrade as seamlessly with as little downtime as possible. Is it possible to install 3CX v16 on a separate server (restoring from backup) while keeping the...

I have 3CX virtualized on hyper-v. I want to move the hyper-v server from one physical server to another. I have a static MAC address set on the hyper-v server. If I move this hyper-v server via live migration of export/import will I have any licensing issues?

Thanks - makes perfect sense.

What's the best practice to resolve my 3CX fqdn (xxx.3CX.US) on my internal network? Should I create an 3CX.US zone in my DNS or allow requests to leave my internal network and access via the public IP address?

Thank you Yiannis. I am on version 15.0.62928.5. My backup size is 1.5gb

I'd just like to clarify: v15 to 15.5 upgrade on Windows is an in-place upgrade? Is there any configuration after the upgrade and how much down time should I expect?

I have yealink T48g/s. They are provisioned with 2 or 3 call appearances "out of the box". I want to add more appearances and it looks like it's simple to do with the provisioning template. Has anyone added 5-6 call appearances and if so has it caused any issues?

If the Pattons are registered, the Patton that is used is determined by inbound and outbound rules. Do you know if those are set up correctly?

Is there a way to keep 3CX phone system up 100% suring a version upgrade? Most major upgrades have involved uninstalling/reinstalling 3CX. Would this be possible with the enterprise version? Switch to secondary server, upgrade primary server, switch back to primary. Or would this not work...

This worked, thanks andreas

On 3CX V14. Our Yealink t42 phones with firmware 29.80.0.110 lose BLF presence after a while. We have other extensions configured as BLF and they do not show if someone is on the phone (BLF buttons stay green). We attempted to manually install firmware 29.80.0.130 but it will not take (it goes...

We never could get 28.80.0.110 to work correctly with BLFs. We went to 28.80.0.130 about 2 weeks ago and haven't had any problems. Unfortunately, it was a manual process because I can't figure out (or there isn't a way) to add a custom firmware.

Thanks, Nick. My best guess is it's some kind of delayed disk write. It's only a guess at this point - I would think I would have heard myself or some reports that says this type of behavior happens on a live call. I have verified that the hyper-v server has integration services and is using...

We have been experiencing a problem with saved voice mails. The sound gets saved out of order with gaps where the out of order sound should have been. I have uploaded a clip of an example to clyp.it https://clyp.it/ndk2xlzs (it's safe!). You can hear in the recording that where the gap is...

Is it possible to have a audible beep tone played every 20 seconds when a call is being recorded. I realize this doesn't work out of the box but would it be possible to customize 3CX to do this?

Re: 12.5 upgrade, unable to get 3CX phone for windows workin I checked on a coworkers computer and the simplest solutions was the best. I just needed to open the config with the "3cx phone for windows" program. Right click on the 3cxexeconfig file and click 'open with' 3cx phone for windows or...

Everything else appears to be working correctly after the upgrade. However, I am unable to get 3CX phone for windows working. I installed the new version of 3cx phone for windows, I sent my self the welcome email with the config attached. When I click the attached config it just opens in...