Configuration checklist — Teams Phone
Sources: setting up your phone system, dial plans, voice routing, Direct Routing plan.
Accessed 14 October 2026.
[ ] Tenant and verified domain confirmed
[ ] User homed online, not Islands, for Direct Routing
[ ] Teams Phone license, and a PSTN option named out loud
[ ] Resource accounts licensed as resource accounts
[ ] Dial plan: first matching normalization rule wins
[ ] Voice routing policy ordered, route lists a backup gateway
[ ] SBC FQDN paired, certificate name matches
[ ] TCP 5061 to all three commercial proxies
[ ] Media ranges open, or bypass documented
[ ] Emergency location is dispatchable for that network
[ ] Compliance recording policy granted if the business records
[ ] One owner for number transforms during coexistence