Used to assign a custom realm (SIP Communications Service) to a collection of proxy configuration settings. Realms (also known as protection domains) are used to authenticate user credentials during logon. This cmdlet was introduced in Lync Server 2010.


   -CustomValue <String>


Each proxy server must be associated with a realm; realms (also known as protection domains) indicate where a user's logon credentials should be processed. By default, Skype for Business Server uses SIP Communications Service as its default realm; however, it is possible to change the realm used by a proxy server. This is done by creating a SipProxy.Custom object and then assigning that object to the Realm property of the appropriate proxy server (or servers). You can create a custom realm by using the New-CsSipProxyCustom cmdlet.


-------------------------- EXAMPLE 1 --------------------------

$x = New-CsSipProxyCustom -CustomValue "Litwareinc Communications Service"

The command shown in Example 1 assigns a custom realm (Litwareinc Communications Service) to a variable named $x.



Name of the realm to be used for authentication purposes.

Default value:None
Accept pipeline input:False
Accept wildcard characters:False
Applies to:Lync Server 2010, Lync Server 2013, Skype for Business Server 2015, Skype for Business Server 2019


None. The New-CsSipProxyCustom cmdlet does not accept pipelined input.


The New-CsSipProxyCustom cmdlet creates new instances of the Microsoft.Rtc.Management.WritableConfig.Settings.SipProxy.Custom object.