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AUTH1UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
JIRAIDAUTHSYM-23175
REV5

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UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
REV6UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cb8305e9, userName='null'}
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REV1UserResourceIdentifier{userKey=8a00a02355cd1c2f0155cd26cc0e070f, userName='null'}

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In this section:

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In this article, we describe the necessary steps to configure 

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 and Lync for Enhanced Emergency Services (E911) support.
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1Topology

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Overview

There are two types of 911 (emergency) calls, Basic and Enhanced:

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Related Articles

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  1. Launch Lync Server 2010 Configuration Manager.

  2. Click Network Configuration on left pane.

  3. Click Location Policy on right pane.

  4. Edit the Global Location Policy as shown below.

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    1Configure Location Policy

     

     

 

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Note

Ensure to Commit the changes after configuring the attributes

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.

Dial Plan Configuration

To configure a dial plan:

  1. Launch Lync Server 2010 Configuration Manager.

  2. Click Voice Routing on left pane.

  3. Click Dial Plan on right pane.

  4. Edit the Dial Plan as required.

  5. Add a new Normalization Rule for 911 call as shown below.

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    1Configure Dial Plan

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Note

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Make sure to Commit the changes after configuring the attributes shown above.

Route Configuration

  1. Launch Lync Server 2010 Configuration Manager.
         
  2. Click Voice Routing on left pane.

  3. Click Route on right pane.

  4. Edit the relevant Voice Route and add a new Pattern for 911 call.
         

  5. Be sure to have the relevant 

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     gateway selected in Associated Gateways field as shown below.

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    1Route Configuration

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Note

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Make sure to Commit the changes after configuring the attributes shown above.

Trunk Configuration

  1. Launch Lync Server Management Shell.

  2. Check the Trunk Configuration using Get-CSTrunkConfiguration command.

  3. Verify that EnablePIDFLOSupport attribute is True. If not:
    1. Run the Set-CSTrunkConfiguration -EnablePIDFLOSupport $True script.
    2. Press Enter.
    3. Verify that script Get-CSTrunkConfiguration returns a EnablePIDFLOSupport attribute as True, as shown below.
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1Trunk Configuration

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Create a Location Information Server (LIS) Subnet

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  1. Launch Lync Server Management Shell.

  2. Type Set-CsLisSubnet -Subnet 134.56.105.0 -Description "Cubicle" -Location "Office" -CompanyName "SonusRibbon" -HouseNumber "6900" -PreDirectional N -StreetName "Paseo Padre" -StreetSuffix "Pkwy" -City "Fremont" -State "CA" -PostalCode 94555 -Country US as shown below.

  3. Press Enter.
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1Create LIS Subnet

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Location Policy Configuration

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1Location Policy Configuration

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Note

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Make sure to Commit the changes after configuring the attributes shown above.

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Ribbon SBC Edge Configuration

The configuration steps on the 

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 are achieved directly via the WebUI broken down in the following sections:

 

Note

As an alternative, you can configure the SBC Edge using an easy configuration wizard, see Using Lync Setup for E911 Configuration.

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SIP Profiles

  1. In the WebUI, click the Settings tab.

  2. In the left navigation pane, go to SIP > SIP Profiles > relevant SIP Profile.

  3. In the MIME Payloads panel:
    1. Configure the ELIN Identifier field as shown below: as LOC.

    2. Configure the PDIF-LO Passthrough field as shown below:

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      1SIP Profiles

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Number Transformation

This example uses two Transformation Tables to route calls to a 911 Provider over SIP trunking:

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A Transformation entry is created for Lync E911, which includes table entries for Called Address/Number, ELIN Identifier, and Callback Pool Identifier (the emergency call back number table or Pasthrough ELIN number used for calls destined to 911). For specific information about the Passthrough ELIN Number, see Creating and Modifying Entries to Transformation Tables.

For easy identification, the Description field matches the Scenario description you configured in Lync Setup. 

Tip

For instructions on creating and modifying transformation tables, see Managing Transformation Tables and its child pages.

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  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, click Transformation.
  3. Click (plus) to create a new Transformation Table. Configure the new table

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  1. with the following ELIN Identifier, Called Address/Number, and Calling Address/Number field types

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  1. : 

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Table
1Transformation Table Entries - Calls to E911

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Input Field TypeInput Field ValueOutput Field TypeOutput Field ValueMatch Type
ELIN Identifier(.*)Callback Pool IdentifiernoEntriesMandatory (Must Match)
Called Address/Number\+911Called Address/Number911Mandatory (Must Match)
Calling Address Number\+.#(\d{4})Calling Address/Number+1510564\1Mandatory (Must Match)

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iconfalse

Use the appropriate value for your location in the Calling Address/Number > Output Field Value field.

The Output Field value "noEntries" is only an example. You could use a partial string match or a regular expression to catch all (.*).

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Transformation Table for 911 Fallback calls

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, click Transformation.

  3. Click (plus) to create a new Transformation Table. Configure the new table with with the following ELIN Identifier, Called Address/Number, and Calling Address/Number field types as shown below. :

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    1Transformation Table Entries - 911 Fallback Calls
    Input Field TypeInput Field ValueOutput Field TypeOutput Field ValueMatch Type
    ELIN Identifier(.*)Calling NameOtherLocationsMandatory (Must Match)
    Called Address/Number\+911Called Address/Number9911Mandatory (Must Match)
    Calling Address Number\+.#(\d{4})Calling Address/Number+1510246\1Mandatory (Must Match)
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    Note
    iconfalse

    Use the appropriate value for your location in the Calling Address/Number > Output Field Value field.

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A Lync E911 entry is created in the Call Routing Table for routing calls from SIP to ISDN. For more information about Call Routing Tables, see Managing Call Routing Tables. 

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, go to Call Routing Table.
  3. Click the relevant Call Route table used for calls received from Lync.

Add two entries in the table: (see below for configuration):  one for calls with configured Office Location Information, and another one that does not have the Location Information as Office. Note that both route entries are destined to 911 Provider over a SIP Trunk.

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1Call Routing

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1Transformation Table Entries - Calls to E911
Transformation TableDestination TypeFirst Signaling GroupDescription
SBA: To E911Normal(SIP) SIPp Server SIP TrunkTo E911
911 FallbackNormal(SIP) SIPp Server SIP TrunkTo 911 as Fallback form Other Locations
Calling Address Number\+.#(\d{4})Calling Address/Number+1510564\1

Note
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Note that when integrating with E911 providers, the Call Priority may have to be set to Emergency.

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Call Flow

In the example configuration, when a 911 call from Lync client arrives on the 

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 with the Location Information as Office, Lync will then provide the relevant location profile in the Inbound INVITE message. Sonus SBC 1000/2000
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then passes this information to the 911 Provider in the outbound INVITE message.

This can be verified in the logs by tracing the relevant inbound INVITE message from Lync to the 

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:

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1Tracing Relevant Inbound INVITE Message

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