Lucent Technologies Definity Callmaster II Instructions Manual page 48

reorder tone — (a fast busy tone repeated 120 times a minute) indicates all
trunks are busy.
ringback (audible alerting) tone — (a low-pitched tone repeated 15 times a
minute) indicates the number dialed is being rung.
stutter dial tone — (two sequences of confirmation tone followed by dial tone)
indicates a message is waiting for a station an agent is logged into if AMW is
optioned for the system and for that station. With EAS, this tone indicates a
message is waiting for the EAS agent login-ID.
time-out tone — (an alternating high and low tone [same as intercept tone])
indicates a failure to dial within a preset interval (usually 10 seconds) after lifting
the handset or after dialing the previous digit.
zip-tone — (one short burst of tone) indicates an ACD call will be delivered (ACD
Automatic Answering mode only)
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