Network & Firewall

Firewall rules, ports, and network setup for clear calls.

• FAQs: Why Do I Need to Dial 10 Digits? Why some area codes now require 10-digit dialing for local calls, and what to update.
• Overview: Firewall Guide and Requirements The firewall rules, ports, and settings your network needs for clear, reliable Crexendo calls.
• Reply Cloud: Network Readiness Assessment Use Reply Cloud to check whether a network is ready for VoIP and to monitor call quality.