Track 05

PSTN connectivity

Every external call uses one of four connectivity options. Mixing them is allowed. Pretending they are the same license is not.

Track sheetPNGPDF

Learn it in 5 minutes

You can choose Calling Plan, Operator Connect, Teams Phone Mobile, or Direct Routing for a specific user population.

Visual

Who carries the callCalling Plan · Microsoft operatesOperator Connect · Carrier operatesPhone Mobile · Mobile operatorDirect Routing · You operate the SBC
Teaching weight of how much you operate. Counts in this drawing are teaching order, not customers.

Rooms

  1. Four ways to reach the PSTN 8 min
  2. Calling Plans in practice 6 min
  3. Operator Connect 6 min
  4. Teams Phone Mobile 6 min
  5. Direct Routing 9 min
  6. Mixing them in one tenant 6 min

Ecosystem

CUCM

Cisco CUBE is one of the SBC families named in this lab’s certification lesson. A certified release can be the Direct Routing SBC between Unified CM and Teams.

The tenant still needs a verified domain on the SBC FQDN, and the user still needs Teams Phone. The studio translator does not open a live AXL session. Confirm the current certified release before you build.

Webex

Teams Phone and Webex Calling are separate clouds. This lab does not describe a feature that registers a Webex Calling user into a Teams tenant.

A number move is usually a carrier port, a certified SBC, or a meetings interop product. Confirm before relying.

UCCE

Unified CCE stays the ACD until you migrate it. Microsoft’s contact-center articles name Connect, Extend, and Unify. They do not name a UCCE connector in the notes this lab cites.

Voice into Teams is still Direct Routing or Operator Connect. The routing script stays on the contact-center product you bought. Confirm the vendor’s current model. Source: https://learn.microsoft.com/en-us/microsoftteams/teams-contact-center.

Sources and go deeper

Chapter list. Each room keeps its own sources.json.

Room files: T05-R01-four-ways-to-reach-the-pstn T05-R02-calling-plans-in-practice T05-R03-operator-connect T05-R04-teams-phone-mobile T05-R05-direct-routing T05-R06-mixing-them-in-one-tenant