Solution #00004421
Scope:
This solution applies to all Barracuda SSL VPNs, all firmware versions.
Answer:
VOIP will not operate through SSL Tunnels due to VOIP requiring UDP support. SSL Tunnels do not support UDP and will only operate with TCP in your Barracuda SSL VPN. Network Connector supports both TCP and UDP and is the recommended method for configuring VOIP access on your Barracuda SSL VPN.
Link to this page:
https://campus.barracuda.com/solution/50160000000HuAXAA0