Telephone call status tones

[rpm]

I was searching for the meaning behind telephone call tones, and found the following short description.

DIAL TONE - Continuous 2 Frequencies - System is ready to accept digits
BUSY - 1 sec on / 1 sec off - Called number is busy
REORDER - Fast busy (1/4 sec on/off) - Unavailable feature, facility, or unassigned code
SPECIAL DIAL TONE - 3 short bursts of dial tone followed by continuous dial tone - Feature activation started, ready for additional input
CONFIRMATION - 2 short bursts of tone - Requested feature has been activated
CALL WAITING - 2 short bursts of tone at 10 sec intervals - External call is waiting
CALLBACK- BUSY RECALL - 3 short bursts of ring tone - Busy station is now free

 

[Ockie]

RPM ... please PM me your wifes number. I want to give her a talking to seeing that she is obviously not paying you enough attention!

 

[krieg]

The tones are different depending in what country you in, some dial tones sounds like a engage signal.