Good afternoon,
Quick question about pbx design when it comes to remote offices. Currently we have our main site with a 3300/Nupoint/PFyre setup. I have a satellite office connected over vpn and a single phone setup there. That is working fine, however we are adding another(possibly more) sites and this solution seems like it has it's own issues, namely phones are down if the vpn/internet fails, e911 doesn't work with the correct address. So what I'm looking for is a suggestion on how best to setup satellite offices to take these into account.
Currently we have 2 PRI circuits at the main office. I'd be ok with copper lines into a small phone system that would allow local e911 correctly, and would allow calls out if the vpn went down. I'd like it to connect to the main office if possible over a vpn for call transfers, but this isn't required.
Any thoughts? I've seen a lot of mention of just using teleworker, but I haven't used this so don't know if it works with e911, or if the internet/vpn is down. Is this even the right way to go about it?
Thanks for your help in advance.
Ed