The Avaya Ready Now® is a cloud-based service offer that requires Avaya products to be deployed in a distributed architecture. The endpoints and gateways operate in local NAT address domains at the branch office sites, while the Avaya server products remain in the data centers. The data centers also operates in a private address space. The Avaya SBC supports end-to-end communication from the data centers to reach out across public service provider networks and ultimately serve the branch office sites.

You can use Avaya SBC to access PRI trunk, DCP phones, Analog phones from branch to One Cloud Private core through public internet or SD-WAN. The feature should keep media optimized and local to branch for all cases of PRI trunk. DCP phones, Analog phones, and SIP phones from within the same branch or across branches with a common NAT. Avaya SBC provides media access to the One Cloud Private core if any media treatment is required from the One Cloud Private data center.

The G4xx gateways operating as an Edge Gateway are on the public network side of the Firewall from the Avaya SBC. While Avaya Products within the Data Center communicates with IP Addresses. The Edge Gateway tunnels H248 signaling into a TCP/TLS connection toward port 2944 on the Avaya SBC. The Avaya SBC acts as H248 Proxy server to modify the address fields and forward these messages on toward TCP port 2944 on the Communication Manager.