Telephony: fix Blacklist support for L (2/3)

Change-Id: I9cd9c7007fc1016bf2872b01b18334bd8c2601ba
Signed-off-by: Roman Birg <roman@cyngn.com>
(cherry picked from commit 7404d644a41e0f6826d7c40ff99c21fda13649f0)