VIDEO: Internet Connectivity and Firewall Concepts
Skills Covered by this Module
- General Internet Connectivity concepts.
- Using the Firewall Checker as a first check to identify Firewall Configuration errors or warnings.
- Firewall Configuration – Port Forwarding.
- Firewall Configuration – Quality of Service (QoS).
Relevant Course Materials
- A Guide to QoS
- Ports used by 3CX PhoneSystem
- External & Internal devices: Network Topology
- Sip Proxy Tunnel & Sip Proxy Tunnel Manager
- What is the firewall checker and why do I need it?
- How do I configure a CISCO router for to allow connection to a VOIP provider
- Why does 3CX require static port mappings (Full Cone NAT)?
- How do I configure my Linksys router for 3CX Phone System?
- Is Microsoft ISA server supported as a firewall?
- When and How can I switch off STUN Resolution?