1. Microsoft 2016
11/4/2017 2:11 AM
BRK3053
Understand the mysteries of Dial Plans and Voice Routes in Skype for Business
Doug Lawty
Principal Program Manager
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. The scope from our session’s description
Microsoft 2016
11/4/2017 2:11 AM
The scope from our session’s description
Know your routes! This session covers the creation, configuration, importance and impact of dial plans and voice routing. From differences between dial plans and routes to possibilities and impossibilities and how dial plans are configured in the cloud and on-premises, this session provides all the details needed to grow your voice deployment from local to your entire enterprise.
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

3. Skype for Business PSTN deployment options
User home*
PSTN trunks
Description
License requirements C
Online
Cloud PBX with PSTN Calling in Skype for Business Online
E3 + CloudPBX + PSTN Calling E5 + PSTN Calling A
On-premises
Cloud PBX with on-premises PSTN connectivity with Cloud Connector Edition
E3 + CloudPBX E5 H
Cloud PBX with on-premises PSTN connectivity with an existing deployment
E3 + CloudPBX + server licenses
E5 + server licenses P
Skype for Business Server installed on-premises
Server licenses + E5
Server licenses + CALs
*Remember: Conference location follows user location.

4. Call routing features by deployment type
TechReady 23
11/4/2017 2:11 AM
Call routing features by deployment type
As of Sep-2016
Online
Hybrid
On-premises C
PSTN Calling A
Cloud Connector H
On-premises connectivity P
Enterprise Voice
Dial plan
Country-based dial plan today. Custom dial plans for extension dialing in the future.
Country-based dial plan: Set-CsTenantHybridConfiguration -UseOnPremDialPlan $false
Custom on-premises dial plan: Set-CsTenantHybridConfiguration -UseOnPremDialPlan $true
Full custom dial plan support
PSTN routing
By subscriber number (no least cost routing). No admin control.
To CCE PSTN site:
Set-CsUserPstnSettings -HybridPSTNSite Site1
Via custom VoiceRoutingPolicy, could implement LCR
Via custom VoicePolicy, could implement LCR
Calling features
Predefined voice policy: BusinessVoice
Predefined voice policy: HybridVoice
Via Voice Policy
Class of service
Controlled by license applied to user
Grant-CsVoiceRoutingPolicy –PolicyName InternationalCallsDisallowed
Via custom VoiceRoutingPolicy
Calling Line ID
Set-CsCallerIdPolicy – anonymous, service, line URI
Set-CsCallerIdPolicy or override at GW
Set-CsCallerIdPolicy or override in trunk configuration
Via override in trunk Configuration
Emergency calling
Static via assigned emergency location
Static via routing to HybridPSTNSite
Static via VoiceRoutingPolicy to local GW
E9-1-1 via on-premises LIS and service provider or ELIN gateway
RNL for “on-net” calls
RNL for users only, calls to services go to PSTN
Yes
Network awareness
None, use DSCP marking for QoS on-premises
Media bypass, CAC, LBR, E9-1-1
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5. Dial plans

6. Dial plans defined on-premises
Based on regular expressions
Matches pattern entered by user, converts to E.164
Can be assigned to users, topology sites, pools, trunks
Assigning to sites or pools could be a benefit when moving users – they would automatically adopt the dial plan of their new location.
However, dial plans are often more granular – the same pool or site may be serving users with different needs
On-premises PSTN connectivity with existing deployment
Set-CsTenantHybridConfiguration -UseOnPremDialPlan $true
For users homed online, assign dial plan to on-premises account H C A H P

7. C A H P

8. C A H P

9. Inbound number normalization
Assign dial plan to trunk for normalizing called and calling party numbers on inbound calls
Also applies to analog phones
Not effective to assign dial plan to analog phone contact object C A H P

10. Cloud PBX dial plans Country-specific dial plan
Automatically assigned when user is licensed
Changes automatically as license location and DID change C A H P

11. C A H P

12. C A H P

13. C A H P

14. Cloud PBX roadmap: custom dial plans
Custom dial plans scoped at the tenant level
Tenant admin replaces standard country dial plan with custom dial plan
Initially exposed only through remote PowerShell
Provides extension dialing and E.164 normalization
Allows end user to maintain dialing habits
Extension can be dialed and E.164 is sent in the INVITE
Works for all Cloud PBX connectivity options C A H P

15. Outbound routing

16. Routing and Authorization
The big picture of the most important elements
Voice policies
PSTN usages
Routes
User authorization Class of service Voice feature set
Purpose (usage, caller’s intent) Calling location Priority
Called number Cost of call C A H P

17. Voice Policies Can be assigned per user, per site, or global
Provides admins with flexibility to control user voice entitlements
Call Forwarding, Delegation, Call Transfer, Call Park, Simultaneous Ringing, Team Call, PSTN Rerouting, BW Policy override Malicious call tracing
Control dialing capabilities (class of service) by assigning PSTN usages
Not only for users
Also useful to address common area device requirements Assign a Voice Policy to a common area phone to prevent misuse and high cost C A H P

18. PSTN Usages
A PSTN usage record specifies a class of call (such as internal, local, or long distance) that can be made by various users or groups of users in an organization
PSTN usages are ordered for least cost routing with backup options
PSTN usage records must be associated with
Voice policies, which are assigned to users Routes, which are assigned to phone numbers C A H P

19. Routes
A voice route associates destination phone numbers with one or more trunks (gateways, PBXs, SIP trunks) and one or more PSTN usage records
PSTN usage presence in the voice policy (or voice routing policy) controls if a user is allowed to use the route
A route is selected from those in based on an E.164 matching pattern C A H P

20. C A H P

21. C A H P

22. Controlling gateway preference
Multiple trunks in same route
Gateway will be selected randomly
Provides for load-balancing
Multiple routes in the same usage
Gateway selected based on matching pattern
Ordering is only guaranteed when route patterns are the same
E9-1-1 location policy only allows one usage – place your service provider SIP trunk as highest priority
Used when different gateways are used for different called numbers but all belong to the same class of service. (i.e., least cost routing)
Routes in different usages
Gateway selected based on the order of the usages in the users voice policy
Allows you to have different fallback routes for users in different geographies C A H P

23. Voice routing policies for hybrid
Create a voice routing policy
New-CsVoiceRoutingPolicy –Identity <PolicyID> -Name <PolicyName> -PstnUsages <Usage1>, <Usage2>
Grant policy to on-premises user object
Grant-CsVoiceRoutingPolicy -Identity <User> -PolicyName <PolicyName> C A H P

24. Caller ID

25. Outbound number translation
Translation rules can be applied at the trunk level
Translates numbers on outbound calls
Inbound calls use trunk-associated dialplan
Can manipulate both calling and called party numbers
Use to accommodate dial plans of connected PBXs
Remove “;ext=…” from caller’s number
Remove “;ext=…” from called party number for PSTN reroute
Send extensions only or external access prefix, if required C A H P

26. C A H P

27. Changing Outbound Caller ID
Get-CsCallerIdPolicy – View all of the settings currently in place
New-CsCallerIdPolicy – Create a new policy for setting to Anonymous
New-CsCallerIdPolicy -identity MyPolicy -Name MyPolicy -Tenant e d f-b37466ecb035 -CallerIDSubstitute Anonymous
Set-CsCallerIdPolicy – Set a new Caller ID Policy to a Service Number
Set-CsCallerIDPolicy -identity MyPolicy -CallerIDSubstitute Service -ServiceNumber
Grant-CsCallerIdPolicy – Assign policy to user
Grant-CSCallerIdPolicy -PolicyName MyPolicy -identity
Can change to a service number or block
Doesn’t support changing to “any” number C A H P

28. Microsoft 2016
11/4/2017 2:11 AM C A H P
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

29. Location-aware features

30. Location-aware features
How the client reports its location
Call admission control
IP addresses of endpoints are placed into TURN allocate request with BW extension
Media bypass
Subnet ID is calculated and sent in in-band provisioning request. Bypass ID is returned.
Location-based routing
Subnet ID is calculated and placed into “ms-subnet” header of SIP INVITE.
Location policy
Subnet ID is calculated and sent in in-band provisioning request. Subnet ID is looked up in network subnet configuration.
Street address (for E9-1-1)
Subnet ID is calculated and sent in LIS web service request. Subnet ID is looked up in LIS subnet configuration. C A H P

31. Support for multiple emergency numbers
Multiple emergency numbers and masks can be specified in a location policy
Dependent on specific client support
Unsupported clients will use original, single number behavior
PSTN usage must have routes for other numbers
Example:
> $a = New-CsEmergencyNumber -DialString 911 -DialMask 112;999
> $b = New-CsEmergencyNumber -DialString 500 -DialMask 501;502
> Set-CsLocationPolicy -Identity <id> C A H P

32. Location-based routing capabilities
Enforces that outgoing calls must egress from a PSTN gateway local to the caller’s location
Prevents the incoming call to the client, if the endpoint is not in the PSTN gateway’s location
Routes outgoing calls through international PSTN gateways if a gateway local to the user’s location cannot be found
Ensures that conferences do not have a mix of users from different locations and PSTN dial-out C A H P

33. Questions?

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37. 11/4/2017 2:11 AM
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

38. Appendix

39. Voice Routing C A H P Dialing Behaviors Routing & Authorization
msRTCSIP-Line msRTCSIP-PrivateLine
Inbound Routing
SIP URI
PSTN Fallback for CAC and Network Outages
Reverse Number Lookup
Dial Plan
Emergency Call?
Match
User=phone
Start Time xx:xx / Length: 1 minute
Walk the students through each of the elements in the diagram, explaining their roles in the configuration process and any dependencies.
Discuss the difference between Dialing Behaviors and Routing & Authorization.
Dialing behaviors happen when the client dials a number. With the exception of emergency numbers, its sole purpose is to get the number into a routable (= E.164) format.
Routing & Authorization takes place after the number is globally unique. This is the process used to select the right route to the final destination, and then check to determine whether the user is authorized to make the call.
Advance through the animations by clicking and use the arrows to explain every step in the process.
Yes
External Normalization Rules
No match
Apply Called Party Prefs
EAP?
Select usages
Internal Normalization Rules
UC Endpoint Receives Call No
From trunk with usages?
Usages on inbound trunk
Global?
Emergency call?
Usage from location policy
Client-side normalization
Yes
Conference dial-out?
Usages of meeting organizer
Announcement or Call Park Application
Unassigned number?
RFC 3966 Starts with + No
Call Park?
Location-based routing?
Gateway
Mediation Server
Usages from network site
Normalization Rule
Dial Plan
Referred-by?
Convert # to Local Format
Usages of referrer
Trunk Configuration / Number Translation
Usages of caller
Must Match A Rule
Call Park Orbit Range
Selected policy/usages
Routes
Gateway / IP-PBX / SIP Trunk
PSTN Usage
Route
Route
PSTN Usage
Route
External Endpoint Receives Call
PSTN Usage
Route
Voice Routing
Dialing Behaviors
Routing & Authorization C A H P 39

40. Whiteboard

41. Whiteboard

42. Whiteboard