Planning Microsoft Teams or Skype for Business online in a Hybrid Environment - Part 1
I will discuss the panning phase on this post. I will put together another post to discuss preparation tasks for the hybrid setup. Traffic Flow The below shows the traffic flow during the Hybrid co-existence phase. Enterprise voice for users migrated to Office 365 will continue to be provided on-premise. All other IM, conferencing or collaboration-related services will be provided by the Skype for Business Online or Microsoft Teams services. All incoming SIP traffic for both hybrid and on-premise users will traverse over the Lync or Skype for Business on-prem services. SIP DNS records will continue to point to the on-premise services until the migration of all users, enterprise voice and number ranges have been migrated to SfB Online or Teams, Microsoft Phone System and Cloud calling plans respectively. Migrate existing telephony number ranges to the cloud calling service has to be co-ordination consistencies between the timeframes for hybrid migration and number, migrat