Recently I have been involved in works for my client, where all IP addressing scheme was change for particular country. Skype for Business infrastructure involved in this change was: SBA (Survivable Branch Appliance) and two SBC (Session Border Controllers).
Changes on Sonus SBCs + SBA went smooth as per procedure, but during tests after change I have discovered that telephony stop working. All the infrastructure was configured using FQDNs and DNS entries were configured properly so what a h….?Continue reading “Skype for Business telephony calls doesn’t work after SBC IP address change”