Questions on Teams Hybrid voice

[Newlife]

Hi Community, 

One of our customer has below environment and raised couple of queries:

Site 1

1 x Skype for Business 2015 Standard edition/ Front end role
1 x Skype for Business 2015 Edge role
1 x Reverse proxy role
1 x Standalone SQL for monitoring
Audio Codes SBC for PSTN call routing

Site 2

1 x Skype for Business 2015 Standard edition/ Front end role
Audio Codes SBC for PSTN call routing

Plan:

Partner wants to go for Teams only environment in few years time.
Partner needs Hybrid Voice in the meantime between SfB 2015 on-prem and Teams.
Partner also requires Meeting rooms (Currently hosted with on-prem SfB 2015) interoperability with Teams Online.

Questions:

Can we have Hybrid voice between Skype for Business on-prem and Teams Teanant?

Or How can we plan for Meeting room interoperability?

Any pointers would be of great help!!

Many thanks in advance. 

[#2]

Hybrid is possible between your Skype for Business on-premises and Teams..
https://docs.microsoft.com/en-us/skypeforbusiness/hybrid/plan-hybrid-connectivity

If you want to use Enterprise Voice also in Teams, you will need to deploy Direct Routing.

You can migrate meetings to Teams.
https://techcommunity.microsoft.com/t5/microsoft-teams-blog/meetings-first-brings-microsoft-teams-me...