Question: 4
When a company's internal DNS is down, how can a SIP Remote Worker client still register with the IP Office through the Wi-Fi connection?
A. The Internet router/firewall will proxy the IP Office IP address.
B. With the FQDN and port forwarding router the Internet DNS can work.
C. DHCP will redirect the registration.
D. The client must use the cellular network
Answer: D
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