Firewalls help protect your business network, but certain security settings can interfere with internet-based phone service. Planning ahead can help prevent call quality issues, service interruptions and installation delays.
To help ensure a successful installation, let your Midco representative know if your business:
Providing this information early allows us to coordinate any network requirements before installation day.
If your network is managed by an IT professional or third-party technology partner, we recommend involving them before your installation.
Your IT provider can:
This collaboration helps ensure a smoother setup and reduces the risk of service disruptions.
Detailed network and firewall requirements vary based on your phone equipment and network environment.
The following domain names are commonly used and remain stable over time. Therefore, we recommend adding the two domain names to the allowlist.
General domain name (recommended):
For more detailed information, including specific domain names, IP addresses and ports, please refer to the table on Yealink’s website.
If your business uses custom firewall policies or advanced network security controls, Midco can provide the appropriate technical specifications directly to your IT team or network administrator.
