I reconfigured my LAN, moving the Ooma Telo to the WAN (internet) side of my router: Cable Modem -> Ooma Telo -> RT-AC66U Router -> PC etc; Instead of 15 minutes to boot, it now takes 5 minutes. That is still quite long but is tolerable. My various SIP phones and VoIP services generally boot and login in less than 1 minute. More @Wikipedia
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