Lync 2013 – Oauth On-Premises (Lync Server 2013 and Exchange 2013)

by Karl | Nov 4, 2014 | Lync 2013, Microsoft, Powershell, Windows Server 2012

What is this?

Since Lync Server 2013, there is a new prerequisite on the Lync Servers for Exchange 2013 interconnection: This will allow you to use :

Unified Contact Store (UCS)
Exchange OWA IM and presence Integration

Windows Identity Foundation

“It’s a new extension to the Microsoft .NET Framework that makes it easy for developers to enable advanced identity capabilities in the .NET Framework applications.” This feature has been created to support server to server authentication. It is used by asp.net and Windows Communication Foundation applications. (In our situation, by Lync server 2013 and Exchange Server 2013) In order to configure Oauth, you must do two things:

Assign a certificate to Lync Server’s
Set Exchange as a partner application.

Please note : “It should also be pointed out that you do not need to use server-to-server authentication: server-to-server authentication is not required in order to deploy Lync Server 2013. If Lync Server 2013 does not need to communicate with other servers (such as Exchange 2013) then server-to-server authentication is not needed.” Source Also note that “your Lync Server 2013 default certificate can also be used as the OAuthTokenIssuer certificate” Source

Installation

There is two ways to install the WIF : Windows Server 2008 R2 Install with the Windows Identity Foundation (KB974405) installer. Windows Server 2012 Server Manager Go to Add Roles and Features Wizard, select Features. Select Windows Identity Foundation 3.5 from the list. Click Next, then click Install. Powershell

Add-WindowsFeature Windows-Identity-Foundation

1	Add-WindowsFeature Windows-Identity-Foundation

Once WIF has been installed you can run Deployment Wizard and Assign the Lync default certificate to Oauth certificate.

Sources

Description of Windows Identity Foundation (http://support.microsoft.com/kb/974405/en-us) Microsoft TechNet – Lync Server 2013 (http://technet.microsoft.com/en-us/library/gg398616.aspx)

Lync 2013 Server – Cumulative Updates List – September 2015

by Karl | Oct 28, 2014 | Lync 2013, Microsoft

I needed a precise list of what is on Lync Updates so I managed to insert every useful data in one table.

As well, I give you a simple script which allows you to get the CU version on the Lync Server actually deployed.

Latest update download :

http://www.microsoft.com/en-us/download/details.aspx?id=36820

Do not forget the Install-CsDatabase cmdlet if you install the Cumulative Update from October.

Security Update5.0.8308.927September 20153080353Update for Web Components Server

Cumulative Update	Lync Server Version	Date Released	Associated KB	Updates	Server to Apply
CU 1	5.0.8308.291	February 2013	2781547	Address Book Web Query service ABS databases location policy
CU 2	5.0.8308.420	July 2013	2819565	Update for Persistent Chat server Update for Conferencing server Update for Unified Communications Managed API 3.0 Workflow APIs
CU 3	5.0.8308.556	October 2013	2881684	Update for Mediation server Update for Conferencing Announcement Update for Call Park Service
CU 4	5.0.8308.577	January 2014	2910244	Update for Backup Service Update for Central Management Server
CU 5	5.0.8308.738	August 2014	2937310	Update for Windows Fabric Update for Web Conferencing server Update for Administrative Tools
CU 6	5.0.8308.815	September 2014	2987510	Update for Conferencing Attendant Update for Core Components Update for Web Components server Update for Unified Communications Managed API 4.0, Core Runtime 64-bit Update for Standard or Enterprise Edition server (Front End Servers and Edge Servers)
CU 7	5.0.8308.831	October 2014	3001616	Update for IM
CU 8	5.0.8308.834	November 2014	3010032	Update for
CU 9	5.0.8308.857	December 2014	3018158	Update for
CU 10	5.0.8308.871	February 2015	3031061	Update for Conference Service Update for Conference Service
CU 11	5.0.8308.887	May 2015	3051949	Update for URL filter policy (“http://” not filtered)
CU 12	5.0.8308.920	July 2015	3066655	Update for XMPP Gateway Update for XMPP Proxy Update for Application Host Update for Audio Test service Update for Core Management Server Update for Backup Service Update for Unified Communications Managed API 4.0 Runtime Update for web components server Update for core components Update for Call Park service Update for Conferencing Announcement Update for Conferencing Attendant Update for Mediation Server Update for Administrative Tools Update for Web Conferencing server Update for UCMA 3.0 Workflow APIs Update for Conferencing Server Update for Persistent Chat Update for Bandwidth Policy service Update for Reponse Group Service	Standard Edition server Enterprise Edition – front-end server and back-end server Edge server stand-alone Mediation server Director server Persistent Chat front-end server Administration Tools
Security Update	5.0.8308.927	September 2015	3080353 – MS15-104	Update for Web Components Server

## This script will be updated soon
function Get-CsCUVersion{
		[String]$Servers=$env:COMPUTERNAME+"."+$env:USERDNSDOMAIN
		
		$version=(Get-CsManagementStoreReplicationStatus -ReplicaFqdn $Servers).productversion
		
		#Lync server 2010 CU List
		if ($version -like "4.0.7577.108"){return $version="Lync 2010 CU1 January 2011 - $($version)"}
		if ($version -like "4.0.7577.137"){return $version="Lync 2010 CU2 April 2011 - $($version)"}
		if ($version -like "4.0.7577.166"){return $version="Lync 2010 CU3 July 2011 - $($version)"}
		if ($version -like "4.0.7577.183"){return $version="Lync 2010 CU4 November 2011 - $($version)"}
		if ($version -like "4.0.7577.190"){return $version="Lync 2010 CU5 February 2011 - $($version)"}
		if ($version -like "4.0.7577.199"){return $version="Lync 2010 CU6 June 2012 - $($version)"}
		if ($version -like "4.0.7577.203"){return $version="Lync 2010 CU7 October 2012 - $($version)"}
		if ($version -like "4.0.7577.216"){return $version="Lync 2010 CU8 March 2013 - $($version)"}
		if ($version -like "4.0.7577.217"){return $version="Lync 2010 CU9 July 2013 - $($version)"}
		if ($version -like "4.0.7577.223"){return $version="Lync 2010 CU10 October 2013 - $($version)"}
		if ($version -like "4.0.7577.225"){return $version="Lync 2010 CU11 January 2014 - $($version)"}
		if ($version -like "4.0.7577.230"){return $version="Lync 2010 CU12 April 2014 - $($version)"}
		if ($version -like "4.0*"){return $version="Lync 2010 - $($version)"}
		
		#Lync server 2013 CU List
		if ($version -like "5.0.8308.291"){return $version="Lync 2013 CU1 February 2013 - $($version)"}	
		if ($version -like "5.0.8308.420"){return $version="Lync 2013 CU2 July 2013 - $($version)"}
		if ($version -like "5.0.8308.556"){return $version="Lync 2013 CU3 October 2013 - $($version)"}
		if ($version -like "5.0.8308.577"){return $version="Lync 2013 CU4 January 2014 - $($version)"}
		if ($version -like "5.0.8308.738"){return $version="Lync 2013 CU5 August 2014 - $($version)"}
		if ($version -like "5.0.8308.815"){return $version="Lync 2013 CU6 September 2014 - $($version)"}
		if ($version -like "5.0*"){return $version="Lync 2013 - $($version)"}
}

## This script will be updated soon

function Get-CsCUVersion{

[String]$Servers=$env:COMPUTERNAME+"."+$env:USERDNSDOMAIN

$version=(Get-CsManagementStoreReplicationStatus -ReplicaFqdn $Servers).productversion

#Lync server 2010 CU List

if ($version -like "4.0.7577.108"){return $version="Lync 2010 CU1 January 2011 - $($version)"}

if ($version -like "4.0.7577.137"){return $version="Lync 2010 CU2 April 2011 - $($version)"}

if ($version -like "4.0.7577.166"){return $version="Lync 2010 CU3 July 2011 - $($version)"}

if ($version -like "4.0.7577.183"){return $version="Lync 2010 CU4 November 2011 - $($version)"}

if ($version -like "4.0.7577.190"){return $version="Lync 2010 CU5 February 2011 - $($version)"}

if ($version -like "4.0.7577.199"){return $version="Lync 2010 CU6 June 2012 - $($version)"}

if ($version -like "4.0.7577.203"){return $version="Lync 2010 CU7 October 2012 - $($version)"}

if ($version -like "4.0.7577.216"){return $version="Lync 2010 CU8 March 2013 - $($version)"}

if ($version -like "4.0.7577.217"){return $version="Lync 2010 CU9 July 2013 - $($version)"}

if ($version -like "4.0.7577.223"){return $version="Lync 2010 CU10 October 2013 - $($version)"}

if ($version -like "4.0.7577.225"){return $version="Lync 2010 CU11 January 2014 - $($version)"}

if ($version -like "4.0.7577.230"){return $version="Lync 2010 CU12 April 2014 - $($version)"}

if ($version -like "4.0*"){return $version="Lync 2010 - $($version)"}

#Lync server 2013 CU List

if ($version -like "5.0.8308.291"){return $version="Lync 2013 CU1 February 2013 - $($version)"}

if ($version -like "5.0.8308.420"){return $version="Lync 2013 CU2 July 2013 - $($version)"}

if ($version -like "5.0.8308.556"){return $version="Lync 2013 CU3 October 2013 - $($version)"}

if ($version -like "5.0.8308.577"){return $version="Lync 2013 CU4 January 2014 - $($version)"}

if ($version -like "5.0.8308.738"){return $version="Lync 2013 CU5 August 2014 - $($version)"}

if ($version -like "5.0.8308.815"){return $version="Lync 2013 CU6 September 2014 - $($version)"}

if ($version -like "5.0*"){return $version="Lync 2013 - $($version)"}

}

Lync – Get-MCsPool

by Karl | Jul 8, 2014 | Lync 2010, Lync 2013, Microsoft, Powershell

When you look for a simple way to get all Lync Server topology, you probably will do a Get-CsPool command. But here, you don’t see the sites and the output is not coming in a easily readable way.

The script below will let you Show all information at once.

Get-MCsPool will show you your infrastructure in an easy way :

Communication Server versions tested
Office Communication Server 2007	–
Microsoft Lync Server 2010	OK
Microsoft Lync Server 2013	OK

function Get-MCsPool{

	foreach ($site in Get-Cssite){ 
		Write-Host "Site : " $site.Displayname "( " -NoNewline -ForegroundColor Green
		if ($site.Description -notlike ""){
			Write-Host $site.Description")" -foregroundcolor Green
		}else{
			Write-Host "No description" -foregroundcolor DarkRed -NoNewline
			Write-Host " )" -foregroundcolor Green
		}
		$pools = $site | select -ExpandProperty pools
		foreach ($pool in $pools){
			$boolDiscovered = $false
			[array]$ServerType = ""
		
			Write-Host "Pool : " $pool -ForegroundColor Cyan -NoNewline
			$services = Get-CsPool $pool | select -ExpandProperty services #Get all services from the current pool
			
			If ($Site.ParentSite -ne $Null){ #SBA
				if ($services.count -ge 2){
					$ServerType += "Survivable Branch Appliance"
					$boolDiscovered = $true
				}else{
					$ServerType += " PSTN Gateway "
					$boolDiscovered = $true
				}
			}else{ #NO SBA
			
				$PoolComputersCount = (get-cspool $pool | select -ExpandProperty computers ).count #Get the computer numbers in a pool
	 			if ($PoolComputersCount -ge 2){ #POOL SERVERS (If there is 2 or more computers
					$findOut = $services -match '.*Registrar:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Enterprise Edition Pool"
						$boolDiscovered = $true
					}
					$findOut = $services -match '.*PersistentChatService:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Persistent Chat Pool"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*TrustedApplicationPool:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Trusted Application Pool"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*EdgeServer:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "EDGE Pool"
        				$boolDiscovered = $true
					}
			
				}else{ #STANDALONE SERVERS (Only one computer)
	    			$findOut = $services -match '.*Registrar:([a-zA-Z]).*'
        			if ($findOut) {
						$Registrar = $findOut -replace "Registrar:",""
						$ServerType += "Standard Edition Pool"
						$boolDiscovered = $true
        			}
					$findOut = $services -match '.*PstnGateway:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "PSTN Gateway"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*EdgeServer:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "EDGE Server"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*MonitoringServer:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Monitoring Server"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*ArchivingServer:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Archiving Server"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*WacServer:([a-zA-Z]).*'  #Lync 2013
        			if ($findOut) {
						$ServerType += "Office Web Apps Server"
        				$boolDiscovered = $true
					}else{
						$findOut = $services -match '.*WacService:([a-zA-Z]).*' #Lync 2010
						if ($findOut) {
							$ServerType += "Office Web Apps Server"
        					$boolDiscovered = $true
						}
					}
					$findOut = $services -match '.*TrustedApplicationPool:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Trusted Application Server"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*FileStore:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "File Server"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*ApplicationDatabase:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "SQL Server"
        				$boolDiscovered = $true
					}
					$findOut = $services -match '.*PersistentChatServer:([a-zA-Z]).*'
        			if ($findOut) {
						$ServerType += "Persistent Chat Server"
        				$boolDiscovered = $true
					}
				}#End pool or no pool
			
			}#end sba or no sba		
			
			if (!$boolDiscovered){ #If the variable is false, it means the service is unknown
				Write-Host " (N/A)" -ForegroundColor Gray -NoNewline
			}else{#If the variable is true, it means the service was discovered
				foreach ($type in $ServerType){
					if ($type -notlike ""){
						if (($type -like "*Edition*") -or ($type -like "Survivable*")){ #For the main pools, Write in Yellow
							Write-Host " ["$type" ]" -ForegroundColor Yellow -NoNewline
						}else{
							Write-Host " ["$type" ]" -ForegroundColor DarkCyan -NoNewline #For the normal service types, write in darkcyan
						}
					}
				}
			}
			Write-Host "" #Add a return after each line
		}#Close Pools foreach
	}#Close Site foreach
}#Close Get-MCsPool function

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function Get-MCsPool{

foreach ($site in Get-Cssite){

Write-Host "Site : " $site.Displayname "( " -NoNewline -ForegroundColor Green

if ($site.Description -notlike ""){

Write-Host $site.Description")" -foregroundcolor Green

}else{

Write-Host "No description" -foregroundcolor DarkRed -NoNewline

Write-Host " )" -foregroundcolor Green

}

$pools = $site | select -ExpandProperty pools

foreach ($pool in $pools){

$boolDiscovered = $false

[array]$ServerType = ""

Write-Host "Pool : " $pool -ForegroundColor Cyan -NoNewline

$services = Get-CsPool $pool | select -ExpandProperty services #Get all services from the current pool

If ($Site.ParentSite -ne $Null){ #SBA

if ($services.count -ge 2){

$ServerType += "Survivable Branch Appliance"

$boolDiscovered = $true

}else{

$ServerType += " PSTN Gateway "

$boolDiscovered = $true

}

}else{ #NO SBA

$PoolComputersCount = (get-cspool $pool | select -ExpandProperty computers ).count #Get the computer numbers in a pool

if ($PoolComputersCount -ge 2){ #POOL SERVERS (If there is 2 or more computers

$findOut = $services -match '.*Registrar:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Enterprise Edition Pool"

$boolDiscovered = $true

}

$findOut = $services -match '.*PersistentChatService:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Persistent Chat Pool"

$boolDiscovered = $true

}

$findOut = $services -match '.*TrustedApplicationPool:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Trusted Application Pool"

$boolDiscovered = $true

}

$findOut = $services -match '.*EdgeServer:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "EDGE Pool"

$boolDiscovered = $true

}

}else{ #STANDALONE SERVERS (Only one computer)

$findOut = $services -match '.*Registrar:([a-zA-Z]).*'

if ($findOut) {

$Registrar = $findOut -replace "Registrar:",""

$ServerType += "Standard Edition Pool"

$boolDiscovered = $true

}

$findOut = $services -match '.*PstnGateway:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "PSTN Gateway"

$boolDiscovered = $true

}

$findOut = $services -match '.*EdgeServer:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "EDGE Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*MonitoringServer:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Monitoring Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*ArchivingServer:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Archiving Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*WacServer:([a-zA-Z]).*' #Lync 2013

if ($findOut) {

$ServerType += "Office Web Apps Server"

$boolDiscovered = $true

}else{

$findOut = $services -match '.*WacService:([a-zA-Z]).*' #Lync 2010

if ($findOut) {

$ServerType += "Office Web Apps Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*TrustedApplicationPool:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Trusted Application Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*FileStore:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "File Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*ApplicationDatabase:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "SQL Server"

$boolDiscovered = $true

}

$findOut = $services -match '.*PersistentChatServer:([a-zA-Z]).*'

if ($findOut) {

$ServerType += "Persistent Chat Server"

$boolDiscovered = $true

}

}#End pool or no pool

}#end sba or no sba

if (!$boolDiscovered){ #If the variable is false, it means the service is unknown

Write-Host " (N/A)" -ForegroundColor Gray -NoNewline

}else{#If the variable is true, it means the service was discovered

foreach ($type in $ServerType){

if ($type -notlike ""){

if (($type -like "*Edition*") -or ($type -like "Survivable*")){ #For the main pools, Write in Yellow

Write-Host " ["$type" ]" -ForegroundColor Yellow -NoNewline

}else{

Write-Host " ["$type" ]" -ForegroundColor DarkCyan -NoNewline #For the normal service types, write in darkcyan

}

Write-Host "" #Add a return after each line

}#Close Pools foreach

}#Close Site foreach

}#Close Get-MCsPool function

Lync 2013 – Activate Unified Contact Store

by Karl | Apr 10, 2014 | Lync 2013, Microsoft, Powershell

This post will explain the Unified Contact Store on Microsoft Lync 2013 and Exchange 2013 deployments.

What is this?

This is a feature who will share the contacts between all the Microsoft Office products. In fact, it will store all contact information in Exchange 2013 and make it available for :

Lync Client 2013
Exchange 2013
Outlook 2013
Outlook Web Access 2013

This makes the contacts available globally in the organization.

Prerequisites

You must be running Microsoft Lync Server 2013 and Exchange 2013.

Users must use Lync 2013 to initiate the migration of contacts from Lync Server 2013 to Exchange 2013.
User mailboxes must be migrated to Exchange 2013.
You must have server-to-server authentication (Oauth) configured between Lync Server 2013 and Exchange 2013.
Lync 2010 Client and older versions will not be able to work with UCS (they can only read contacts).

I will explain the process of creating an Oauth partnership with Exchange 2013 in my next post.

Activation

Ensure you get all the prerequisites before activating.

In order to test it, create a User Policy that you will assign to you before enabling everyone :

New-CsUserServicesPolicy -Identity "UserSvcPolicy-UCSEnabled" -UcsAllowed $True
Grant-CsUserServicesPolicy -Identity "JohnDoeAdmin" -PolicyName "UserSvcPolicy-UCSEnabled"

1 2	New-CsUserServicesPolicy -Identity "UserSvcPolicy-UCSEnabled" -UcsAllowed $True Grant-CsUserServicesPolicy -Identity "JohnDoeAdmin" -PolicyName "UserSvcPolicy-UCSEnabled"

After you see everything is working fine, you can activate UCS for all users, you only need to change the Global User Service Policy using PowerShell:

Set-CsUserServicesPolicy -Identity global -UcsAllowed $True

1	Set-CsUserServicesPolicy -Identity global -UcsAllowed $True

Check

On outlook 2013, got to Contacts and verify you have the Lync Contacts folder as in the picture :

On Lync Client, check the Lync Configuration Information page (Pres Ctrl and right click the Lync icon, then go to Configuration Information).

It may be an entry named Contact List Provider. It may have changed to UCS instead of Lync Server.

Change Voice Policy of Lync 2013 Response Group Workflow, Dialin, or any other service

by Karl | Mar 27, 2014 | Lync 2010, Lync 2013, Powershell

There is two ways to change the Voice Policy with Lync 2013.

CmdLets
Active Directory (advanced)

First of all, we will se how to get the Voice Policy from an Application Endpoint (Workflow, Dialin etc…) :

Get-CsApplicationEndpoint -Identity "*WorkflowName*" | Select VoicePolicy
Get-CsApplicationEndpoint -Identity "*WorkflowName*" | FL *

1 2	Get-CsApplicationEndpoint -Identity "WorkflowName" \| Select VoicePolicy Get-CsApplicationEndpoint -Identity "WorkflowName" \| FL *

So if you want to change the voice Policy of a Workflow with powershell, here is the cmdlet :

Get-CsApplicationEndpoint -Identity "*WorkflowName*" | GrantCsVoicePolicy -PolicyName "VPolicy-US-International"

1	Get-CsApplicationEndpoint -Identity "WorkflowName" \| GrantCsVoicePolicy -PolicyName "VPolicy-US-International"

Now we are going to be more “serious” by going to make changes in the Active Directory for the workflow itself.

First, depending on your environment, the RTC services folder can be found in different paths:

[Configuration]/Services/RTC Services/Application Contacts
[Domain Naming Context]/Services/Microsoft/RTC Services/Application Contacts

Once you’re in the path, search for the Active Directory Contact object that is your workflow, and modifies the attribute of msRTCSIP-UserPolicies.

It may have some entries like “0=123,1=6,7=2,…”

The “7=” is the voice Policy pointer. So to assign the correct voice Policy number to the Contact, Show the anchors of the voice policies in powershell and add it to the contact.

Powershell Voice Policy Anchor :

Get-CsVoicePolicy | select Anchor

1	Get-CsVoicePolicy \| select Anchor

This is working for all the policies.

Karl

Get-CsActiveCalls – Get Lync Mediation server active calls with powershell

by Karl | Jan 7, 2014 | Lync 2010, Lync 2013

Hi,

This is a simple script you can use to see which server has active calls (mediation).

This uses the Get-CsWindowsService cmdlet to get the RTCMEDSRV values. This can be useful if you need to restart a server.

If you need only one server, you can also use this command :

Get-CsWindowsService -Name RTCMEDSRV | select activitylevel

To launch the function, just write the function name followed by the computername :

Get-CsActiveCalls computer01,computer02,computer03,computer04

This will show you the active calls like in the picture.

A few modifications : powershell seems to keep all values from before, so we just clear the values after showing the object with Clear-Item.

Communication Server versions tested
Office Communication Server 2007	–
Microsoft Lync Server 2010	OK
Microsoft Lync Server 2013	OK

Here is the script :


function Get-CsActiveCalls {
	param (
        [parameter(Mandatory=$false)][array]$Computer = $env:computername
    )
 	$BeforeErrorActionPreference=$ErrorActionPreference
	$BeforeProgressPreference = $ProgressPreference

	$ErrorActionPreference="SilentlyContinue"
	$ProgressPreference = "SilentlyContinue"
	cls
	
	$DateTimeDone = (Get-Date).tostring()
	Write-Host "Calls state on " -NoNewline
	Write-Host $DateTimeDone -ForegroundColor Green
	
    foreach ($PC in $Computer) {
 
        $x = Get-CsWindowsService -Name RTCMEDSRV -ComputerName $PC | select -expandproperty activitylevel
        
		$obj = New-Object PSObject
        $obj | Add-Member NoteProperty "Computer" $PC #.ToString()
 
        $findOut = $x -match '.*Current Outbound Calls=(\d+),.*'
        if ($findOut) {
            $outbound = $matches[1]
            $obj | Add-Member NoteProperty "Outbound Calls" $outbound #.ToString()
        }
 
        $findIn = $x -match '.*Current Inbound Calls=(\d+),.*'    
        if ($findIn) {
            $inbound = $matches[1]
            $obj | Add-Member NoteProperty "Inbound Calls" $inbound #.ToString()
        }
		
		$obj
    }
	
	Clear-Item $matches
	Clear-Item $obj
	Clear-Item $x
	Write-Host "Press any key to continue ..." -ForegroundColor yellow
	$KeyDown = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
	
	$ErrorActionPreference=$BeforeErrorActionPreference
	$ProgressPreference=$BeforeProgressPreference
}
Get-CsActiveCalls computer01,computer02,computer03,computer04

function Get-CsActiveCalls {

param (

[parameter(Mandatory=$false)][array]$Computer = $env:computername

)

$BeforeErrorActionPreference=$ErrorActionPreference

$BeforeProgressPreference = $ProgressPreference

$ErrorActionPreference="SilentlyContinue"

$ProgressPreference = "SilentlyContinue"

cls

$DateTimeDone = (Get-Date).tostring()

Write-Host "Calls state on " -NoNewline

Write-Host $DateTimeDone -ForegroundColor Green

foreach ($PC in $Computer) {

$x = Get-CsWindowsService -Name RTCMEDSRV -ComputerName $PC | select -expandproperty activitylevel

$obj = New-Object PSObject

$obj | Add-Member NoteProperty "Computer" $PC #.ToString()

$findOut = $x -match '.*Current Outbound Calls=(\d+),.*'

if ($findOut) {

$outbound = $matches[1]

$obj | Add-Member NoteProperty "Outbound Calls" $outbound #.ToString()

}

$findIn = $x -match '.*Current Inbound Calls=(\d+),.*'

if ($findIn) {

$inbound = $matches[1]

$obj | Add-Member NoteProperty "Inbound Calls" $inbound #.ToString()

}

$obj

}

Clear-Item $matches

Clear-Item $obj

Clear-Item $x

Write-Host "Press any key to continue ..." -ForegroundColor yellow

$KeyDown = $host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")

$ErrorActionPreference=$BeforeErrorActionPreference

$ProgressPreference=$BeforeProgressPreference

}

Get-CsActiveCalls computer01,computer02,computer03,computer04