Walk Through – Lync Server 2010 Enterprise Voice Functionality (Part 9 – I)

Hi Lets continue the deployment of Lync.

Today I’m going to talk about how to configure Enterprise Voice function and it will cover below function in Lync Server 2010. This will break into 2 parts.

Part I

  1. Edit the topology to include the PSTN gateways.
  2. Publish the new topology.
  3. Create Dial Plans
  4. Create Normalization Rules

Part II

  1. Configuring Voice Policies and PSTN Usages
  2. Configuring Routes and Site Trunks
  3. Configuring Call Park
  4. Configuring the Unassigned Numbers Feature
  5. Configuring Users for Enterprise Voice
  6. Testing and Verifying Enterprise Voice Functionality

OK… let start!!

On the Lync FE, click Start, click All Programs, click Microsoft Lync Server 2010, and then click Lync Server Topology Builder. On the Topology Builder page, click Download topology from existing deployment, and then click “OK”

In the Save Topology As window, save the file on the Desktop as EV.tbxml, and then
click Save.

In the Topology Builder, expand the Central Site, and then click PSTN Gateways. Right-click PSTN Gateways, and then click New IP/PSTN Gateway.


On the Define New IP/PSTN Gateway page, enter the following information to create the gateway, and then click OK. For my case, my gateway IP is and I use the default listening port which is 5066.


Expand Standard Edition Front End Servers or Enterprise Edition Front End Servers. And Right-click Lync FE Pool, and then click Edit Properties.

On the Edit Properties page, Scroll-down to Mediation Server, and if not already selected, select the Enable TCP port check box. Next to Listening ports, leave it to default in the TCP box, or type 5068.

In the lower box, select the gateway, click Add, and then click OK.


In the Topology Builder, right-click Lync Server 2010, and then click Publish Topology.

On the Publish the Topology page, click Next. When the Publishing wizard complete page, verify that all of the steps show as Success, and then click Finish.

Now, once the gateway has been publish. next step is configure the Enterprise Voice Dial Plans and Normalization Rules.

Dial Plan

Go to Lync Server Control Panel, click Voice Routing. On the Dial Plan tab, click New, and then click Site dial plan.


On the Select a Site page, click the site name, and then click OK.


In the Simple Name box, type a name that is easy to identify by you or the administrator, and then scroll down.

Under Associated Normalization Rules, click the Prefix All rule, and then click Remove. And click New.

On the New Normalization Rule page, in the Name box, type Local Call.
In the Starting Digits box, leave it blank
In the Length drop-down list, click Exactly.
In the Length box, type or select 8.
In the Digits to remove box, type or select 0.
In the Digits to add box, type +65.
In the Dialed number to test box, type 8 digit number, and then click Go.
Verify that +65(8 digit) appears in next to Normalized number:
Click OK to close the New Normalization Rule page.


When finished, click OK on the Edit Dial Plan. Click the Commit drop-down menu, and then click Commit All.


In the Uncommitted Voice Configuration Settings window, click Commit. Close the Successfully published voice routing configuration message window.


That all. we will continue the rest on part II


About David Lim

David has over 15 years of experience in IT industry in designing and implementing Microsoft Solutions ranging from small to enterprise customer. He also has experience in designing and developing Microsoft Unified Communications, Collaboration and Office 365 solutions with focus on Exchange, Lync & SharePoint as well as strategic migration planning in complex business environments. He is specializing in architecture and design of Lync Voice deployments. He has been actively involved in various speaking engagements, the recent being the sessions on Lync On-Premise and Office Interoperability in September 2011 and Office 365 Introduction in November 2011. In recognition of his high-quality real-world technical excellence with the community and with Microsoft, David received the prestigious Microsoft Most Valuable Professional (MVP) Award in April 2011.
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5 Responses to Walk Through – Lync Server 2010 Enterprise Voice Functionality (Part 9 – I)

  1. Aamir says:

    great post mate. Question for you is if the customer is already running IM/P and now want to enable EV, could you outline the steps required in the topology builder to actually “enable” EV before enabling EV at the user level? thanks

  2. John says:

    How do I get to part II

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