On Premise Software Help Resource : Help TopicsFailed to Verify License Key

This is usually because your computer is not online. You license key must be
verified online before the gateway can continue.

1. If your computer is online, please restart the gateway and try again.
2. If the above does not work, try to reboot your computer and try again
3. Check your firewall program to see if it is blocking Voicent Gateway
   program (please see Help > Troubleshooting > Topic: Telephony Engine failed
   to start due to timeout for more details about checking your firewall).
   You can try to temporarily stop the firewall program and restart the gateway.

If your computer is in a corporate environment that uses web proxy for
accessing the internet, this error may happen for some configurations. Please
click the link to see article settings needed if you use web proxy.

What if I want my computer to stay offline?

If you use VOIP/SIP or Skype to make calls, your computer must be online.

If you use Voice modem and physical phone line to make call, it is possible
to start Voicent Gateway while the computer is offline. However, you must
request a Offline License Key. The problem with offline key is that you
cannot transfer it to a different computer. To request a offline key, please
select Help > Request Product License from the program main menu, enter
everything as usual, and specify "need offline key" in the field labeled "Order
Number".