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+====== DHCP Required ======
+By design, the Hello Hub needs a DHCP server to tell it how to live within your network and firewall. There is not way to effectively assign it a static address. Luckily, in 2019 this is how everything is done. Well. Most things anyway.
+Below is a slightly edited version of one of those times.
+====The Letter ====
+Chad,
+The ring-u Hello Hub requires DHCP to properly live on your network. It has a backup static address of 192.168.99.9, without a router, DNS and a gateway out, it's only used for emergencies, and in the almost 3 years of ring-u, that's only been a couple of times. In other words, it can't be used for the phone system.
+Every other customer has had a DHCP server that assigns addresses to various devices. Modern DHCP servers are an excellent way to reserve an address for consistent addressing (and we recommend it at [[:reliability|Reliability and Stability]]). As the Hello Hub is, like many devices, a Linux based system, technically there are ways to assign an address by editing a text file on the system, the next system update would overwrite those configs. Essentially: the configs for the many outweigh the configs of the few.  Other "smart" devices like Chromecasts, Alexa's, Doorbells, Thermostats etc.. expect a DHCP server as well. Sometimes there are ways to circumvent that, but the added threat/attack surface of such an interface is a problem for us.
+I'm an old network guy, I like on-device manual IP addressing for some things, but I'm afraid this is not going to be one of those cases. You will need a DHCP server, with at least one available address for the Hello Hub.
+If you'd like to yell at me personally for that, I'm that guy and I'm available. Extension 122 or my mobile: 423-xxx-xxxx