xiǎo líng tōng
mobile phone (with a local, 7-digit phone number)
xiāo xī líng tōng rén shì
a well-informed source
a person with inside information
xiǎo líng tōng jī zhàn
cell phone base or repeater station (telecommunications)
xìn xi líng tōng
see 消息靈通|消息灵通[xiao1 xi5 ling2 tong1]
xiāo xi líng tōng rén shì
well-informed source
person with inside information
líng tōng
fast and abundant (news)
clever
effective