At present our local Exchange is undergoing an upgrade.
We use an ADSL connection to it and yesterday we had an outage for a few hours as the telco never informed us that they were doing maintenance mid-day taking circuits offline! This has happened a few times in the past with either equipment failing or upgrades that should have an outage of a few seconds taking hours instead..
At present we have a static IP assigned by our ISP & all traffic is set to go to this from our DNS registrations for our website & onsite e-mail server.
We do have a wireless backup link (currently on a dynamic IP but may soon change it to static) where we can connect in remotely to see what is going on rather than be on hold for ages to our ISP to find out what is wrong..
If this was set to a static IP, is it possible to set it to be a secondary/backup point if the primary one is down? I can do the magic at our end to change the gateway routing to the other router if need be & get it to switch back over once the primary link is online..