Which tag in the SIP header is used by Cisco Unified Communications Manager to deliver a blended identity of alpha URI and number?

Which tag in the SIP header is used by Cisco Unified Communications Manager to deliver a
blended identity of alpha URI and number?

A.
x-cisco-callinfo

B.
x-cisco-service-control

C.
x-cisco-serviceuri

D.
x-cisco-number

E.
x-cisco-uri