/mcpthe requested call identity has been cleared include: Network timeout • The call is cleared by a remote user • SIP UAC sends a request to UAS with no response • information element that indicates a suspended call that has in the meantime been cleared wile suspended. The user is not a member of Closed User Group (CUG) The typical scenario is the caller is not authorized. 87 Indicates that the called user for the incoming CUG call is not a member of the specified CUG. Incompatible destination Typical scenarios include: The number dialed is not capable of this type of call. • The caller is calling a restricted line in unrestricted mode. • The caller is calling a POTS phone with the use of an unrestricted mode. • 88 Indicates that the equipment that sent this cause has received a request to establish a call that has compatibility attributes that cannot be accommodated. Nonexistent Closed User Group (CUG) The typical scenario is a configuration or dialing error. 90 Indicates that the specified CUG does not exist. Invalid transit network selection (national use) Typical scenarios include: Network error • Identification mismatch • 91 Indicates that a transit network identification was received which is of an incorrect format.