Nortel BCM50 Configuration Manual page 448

448 Chapter 56 Configuring CoS passwords for remote access
Table 93 External access tones (Sheet 2 of 2)
Fast busy tone
NN40020-603 NN40020-603
You have done one of the following:
• Entered an incorrect CoS password. Your call disconnects after five
seconds.
• Taken too long while entering a CoS password. Your call disconnects
after five seconds.
• Tried to use a line pool or feature not permitted by your Class of
Service. You hear system dial tone again after five seconds.
• Dialed a number in the system which does not exist. Your call
disconnects after five seconds.
IP trunk lines do not produce tones when accessed from a remote location.