Default: Take Five - Dave Brubeck Quartet
Wife: Happy Feet - Tom Grant
Daughter: Theme from Sex in the City
Son: Banana Phone - Raffi
Bourree - Johann Sebastian Bach (flute cover by Ian Anderson - Jethro Tull)
Shaker Song - Spyro Gyra
Fato Consumado - Djavan
Bright Side of Life - Eric Idle (cover by Bruce Cockburn)
For my ringtone I've used the CTU ringtone from "24," which I believe is a ringtone on Cisco phones. Had that one for as long as I can remember. I used the Farnsworth sound from "Warehouse 13" for a while as well.
Text alert is the intercom tone from "Star Trek Voyager" and I've used that one for a while as well.
Old Telephone ringtone unless it's my wife or kids. Wife call goes "excuse me sir I have your wife on the line would you like to talk to her or would you like for me to send her to voicemail" and my kids have Spongebob ringtone.