Star Codes

Sometimes called "Bell Star Codes", "Telephone Star Codes", etc. The magic keystrokes that let you turn off call waiting or block caller ID, for example.

More Useful

• *60 - call screening (alt: 1160)
• *66 - repeat dialing (alt: 1166)
• *67 - block caller ID, per-call (alt: 1167) [free]
• *69 - automatic callback (alt: 1169)
• *70 - cancel call waiting, per-call (alt: 1170) [free]
• *71 - call forwarding no answer (alt: 1171)
• *72 - call forwarding (alt: 1172)
• *73 - call forwarding cancel (alt: 1173)
• *74 - speed calling 8
• *75 - speed calling 30
• *86 - cancel repeat dialing (alt: 1186)
• *89 - cancel automatic callback "ringback" (alt: 1189)
• *98 - voicemail (alt: 1198)

source: http://www.sbc.com/gen/general?pid=3750

More Obscure

(and, may or may not work, per phone, per provider, ...)

• *57 - call trace
• *60 - selective call rejection
• *61 - distinctive ringing
• *63 - selective call forwarding
• *68 - selective call acceptance
• *77 - anonymous call rejection
• *80 - cancel call screening
• *82 - allow caller ID per-call on caller ID blocked lines
• *87 - cancel anonymous call reject