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X5669WUP3 User's Manual
Version 1.0
and return to the party on hold by pressing R.
3.7 Call Back Busy Subscriber (Busy)
Call Back Busy Subscriber (CCBS) enables a calling
customer (A), encountering a busy destination (B), to have
the retry dialing automatically until destination becomes idle,
without having to make a new call attempt.
Activation: press 5 when encountering a busy tone
Deactivation: # 37 # deactivates all CCBS
The ATA shall reattempts the last made call every 60 seconds.
The B Party alerts the original calling customer (A) with a
ringing signal when the busy destination (B) becomes idle, if
within 30 minutes. When the original calling customer
answers, the former busy called party will start ringing.
Timeout for call back ringing signal to A and B-side shall be 60
seconds. After the timeout both sides must be disconnected
from the call.
B must have the possibility to make a new call before A
answers the call back.
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