3.10.1.1 ms-source-type parameter

  • Article

The header field can contain the ms-source-type parameter. This parameter represents the type of connectivity between the remote user or peer server and the enterprise SIP network:

  • A parameter value of AuthorizedServer can be used to indicate that the peer server is authorized to represent a public IM provider.

  • A parameter value of AutoFederation can be used to indicate that the From user's SIP domain is authorized for federation and resolves through a DNS SRV record to a peer server FQDN (1).

  • A parameter value of DirectPartner can be used to indicate that the From user's SIP domain and the peer server is authorized for direct federation.

  • A parameter value of EdgeProxyGenerated can be used to indicate the SIP message was generated by a server that is responsible for processing messages from SIP elements outside of the enterprise network.

  • A parameter value of InternetUser can be used to indicate that the SIP message is received from a remote user.