This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.



Represents an entry for a trusted Media Relay Authentication Service (MRAS) server.

The following syntax is simplified from Managed Object Format (MOF) code and includes all inherited properties. Properties are listed in alphabetic order, not MOF order.


class MSFT_SIPTrustedMRASServer
  string FQDN;
  [key] string InstanceID;
  uint32 Port;
  boolean Routable;
  string[] ServerReference;
  string TrustedServiceDN;
  string Type;


This class does not define any methods.


The MSFT_SIPTrustedMRASServer class has the following properties.

  • FQDN
    Data type: string

    Access type: Read/Write

    Required. The fully qualified domain name (FQDN) of the Office Communications Server.

    The value must be an FQDN. An IP address is not allowed.

  • InstanceID
    Data type: [key] string

    Access type: Read-only

    Optional. A GUID value that uniquely identifies an instance of this class.

    The GUID must be encapsulated between the "{" and "}" braces; for example: "{01234567-0123-4567-89AB-CDEF01234567}".

  • Port
    Data type: uint32

    Access type: Read/Write

    Required. The port that is used to communicate with the MRAS server.

    The minimum value for this property is 1 and the maximum value is 65535.

  • Routable
    Data type: boolean

    Access type: Read/Write

    Required. Indicates whether the MRAS server is trusted to route SIP packets.

  • ServerReference
    Data type: string[]

    Access type: Read-only

    Optional. A list of the servers that refer to this trusted server.

  • TrustedServiceDN
    Data type: string

    Access type: Read-only

    Optional. The distinguished name of the trusted service.

  • Type
    Data type: string

    Access type: Read/Write

    Required. Specifies the server type.

    The value of this property is case-sensitive. The only acceptable value is MRAS.




    The server is an MRAS server.


This class gets and sets information at the following level(s): AD.

Instances of this class support the following interface methods:

Provider::DeleteInstance(); Provider::EnumerateInstances(); Provider::GetObject(); Provider::PutInstance();

Where PutInstance() supports the following flag(s):



Server: Installed on computers serving the following role(s): Administrative Tools Server, Audio/Video Conferencing Server, Front End Server, Mediation Server.Namespace: Defined in \root\cimv2.




Office Communications Server WMI Reference