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SBC WAN level redundancy for MS Teams Direct routing

Question - For MS Teams direct routing - I was wondering if you could help us understand how we can achieve WAN level redundancy with the 1:1 NAT option. For example, we have a site with two WAN internet circuits, and our requirement is that if one of the WAN circuits at the site goes down, we should still have SBC level reachability from the second WAN internet circuit. Specifically, we're using the configuration without media bypass and with 1:1 NAT between the SBC internal Aon IP address and the SDWAN public IP address. How can WAN internet level redundancy be achieved in this setup? Is there an option to define one SBC with two public IP addresses on the Cisco CUBE/SBC? What will happen if one public IP address goes down for that SBC? Additionally, we're curious to know what other Cisco customers are doing to achieve SDWAN redundancy. Any insights or recommendations you can share would be greatly appreciated.

Question - How can we define two 2 FQDN IP address with 1:1 NAT on Cisco SBC ? As per below doc, it does not seems that we can define multiple IP address for NAT for single SBC ? Direct Routing for Microsoft Phone System with Cisco Unified Border Element (CUBE)

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