I have tested the failovers, by unplugging either the DSL or Cable lines coming to its respective modems (the My Telo Status webpage would detect the lost of connection quite fast and show the Red "Offline icon), at this point my router has already failover to the other Internet link (which only took a second to do that WAN failover) but the Ooma Telo did not failover immediately.
It will take about 5 and a half minutes to show Green "Online" again on My Telo Status webpage. I did some digging this could be related to some OpenVPN session timeout setting (default 5 minute?).
Does anyone have experience of making the Ooma Telo failover FASTER (less than 5 mins) in this kind of dual internet links setup? Ideally I would really like the Ooma just failover seamlessly when the WAN failover, well, at least not for a full 5 minute wait.
The fail over system will have a different IP address so it can't quickly re-establish the connection. As far as the server knows the failed connection is still failed. It knows nothing about the new IP address. The Telo may have to reboot to set up a connection using a different IP address.
Telo with 2 Handsets, a Linx, and a Safety Phone
Telo2 with 2 Handsets and a Linx