The British prime minister's office is to review security procedures - after a hoax caller was put through to David Cameron.
The caller pretended to be Robert Hannigan, head of government monitoring agency GCHQ.
Elena Casas reports from London.
IN: "The Downing Street…
OUT: SOC
DUR: 36s
ARN: http://fsnradionews.com/feeds/0126hoax-ec-arn.mp3
AIR: http://fsnradionews.com/feeds/0126hoax-ec-air.mp3
FM4: http://fsnradionews.com/feeds/0126hoax-ec-fm4.mp3
GENERIC: http://fsnradionews.com/feeds/0126hoax-ec-generic.mp3
G24: http://fsnradionews.com/feeds/0126hoax-ec-g24.mp3
ICRT: http://fsnradionews.com/feeds/0126hoax-ec-icrt.mp3
NIGERIA: http://fsnradionews.com/feeds/0126hoax-ec-von.mp3
SRN: http://fsnradionews.com/feeds/0126hoax-ec-srn.mp3
RNZ: http://fsnradionews.com/feeds/0126hoax-ec-rnz.mp3