Single inbox with multiple Exchange servers with multiple domains

[jeff.singh]

if we have multiple exchange servers (different versions) within different domains and locations (physical regions) and we want to deploy Single inbox - do we need an exchange service for each exchange server or can we use a discover procedure ? if we use a discover procedure then will one service be adequate for all the servers ?

what happens if there are different domain - do we need one for each domain - what's the maximum number we can have ?

I assume the RTD between locations will also come into play here between UC and the exchange environment ?  TIA...Jeff

[Jonathan Schulenberg · Accepted solution]

Most of these questions are answered in the design guide:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/11x/design/guide/b_11xcucdg/b_11xcucdg_chapter_0110.html

SIB leverages normal Exchange AutoDiscover. If the service account you provide has the necessary permissions across each domain you should be able to share the UM config.

[jeff.singh]

Thank you Jonathan.