STK Call Control feature implementation.

Change-Id: I1164df9ddbf70fb42e760c1f3ab7f3df4b3b5339
(cherry picked from commit 3ad8ca2d4c4fa62192d27edfca110db316001c6f)
(cherry picked from commit a08b126d1c9bcd967be6fcae681f911d57b4f929)
(cherry picked from commit ee940a0adcb8d8915979e47dc3eabc92e5a555fb)
2 files changed