Exploring possible SBC solutions. We have a customer that has a direct T1 SIP and a cable internet connection. I'm looking to understand how something like a TA 908e with SBC (or current device) could help us flip flop from one to the other if there is an outage on one of the links, plus adjust the Session Border Control source address and inbound NAT to match which WAN connection it's using. If anyone has a sample script that does this with the SBC, I'd be grateful if you shared it! Thanks!
This should get you on the right track. https://supportforums.adtran.com/servlet/JiveServlet/previewBody/2299-102-1-2428/Configuring%20Multiple%20WAN%20Connecti…
TA900 series works well in this application, we have several in service.