3.2.5.1.2 Receiving a wsignin1.0 Response That Does Not Specify a ttpindex

When the relying party receives a wsignin1.0 response that does not specify the ttpindex parameter, the message does not use the Query String Response Transfer Protocol, and the relying party MUST process the message as specified in [MS-MWBF] section 3.3.5.2.