Track 06

Routing and dial plans

Normalization and routing are two steps. A number that is not E.164 never gets a fair chance at a voice route.

Track sheetPNGPDF

Learn it in 5 minutes

You can walk usages in order, apply first-match normalization, and explain Islands mode.

Visual

First match, then routeNormalize · Dial planUsage · Policy orderRoute · RegexGateway · SBC priority
Teaching sequence. Counts in this drawing are teaching order, not customers.

Rooms

  1. Normalize, then route 8 min
  2. Dial plans and first match 7 min
  3. PSTN usages are the permission 7 min
  4. Voice routes and gateways 7 min
  5. A London worked example 8 min
  6. Islands mode and other hard stops 5 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: T06-R01-normalize-then-route T06-R02-dial-plans-and-first-match T06-R03-pstn-usages-are-the-permission T06-R04-voice-routes-and-gateways T06-R05-a-london-worked-example T06-R06-islands-mode-and-other-hard-stops