Mitel 5055 - Manual (Page 61)

Appendix B — Web Configuration Tool
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Setting Name Values (bold = default) Notes
Firewall
Bypass Firewall NAT On | Off
This enables or disables firewall NAT
bypass operation. When enabled, this
features lets the 5055 SIP phone function
behind a firewall which is not SIP-aware.
Mode static | dynamic
Determines how the 5055 SIP phone will
obtain the IP address of the firewall. A static
address is
WAN IP Discovery URL <URL> WAN IP Discovery address
WAN IP Address <IP address> Static WAN IP Address
Network Configuration Page
The Network Configuration page lets you change the network configurations of your SIP
Phone. These settings are specific to the SIP Phone. After making the changes, click the
Save and Reboot button; this will reboot your phone.