Pre-deployment Checklist and Tasks
Next, navigate to Maintenance > Security Certificates > Server certificate. Click on the
choose file and select the server certificate signed by the public CA to be uploaded. Then
click on the Upload New certificate.
Configure Unified Communications traversal zone on Expressway-C
Navigate to Configuration > Zones > Zones and click New.
Enter the following into the relevant fields, leaving the other fields at their default values:
◦ Type—Unified Communications traversal
Under Connection credentials:
◦ Accept proxied
◦ Mobile and remote
◦ Peer 1
The FQDN in the peer address should resolve to the Expressway-E NAT public IP address to engage
NAT reflection. Hence the DNS used by Expressway-C should resolve the Expressway-E hostname to
Expressaway-E NAT IP address
Deploy MRA and B2B Collaboration