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10. Callback
10. 1. Callback
When the token 5XNN is encountered in the ACS, the SMarT-1 EuroRoute One-line Dialer
disconnects the Exchange Line side and starts a timer. During the predetermined duration of
the timer (see values below), the Dialer will wait for incoming ringing. Once the ringing is
detected, the remaining ACS tokens are executed. If the timer expires due to no incoming
ringing being detected, the Dialer will provide the subscriber with reorder tone. While the
timer is activated, the Dialer can provide a 400Hz tone back to the subscriber side at a 1
second on and 7 seconds off cycle, until the incoming ringing is detected or the timer is
expired (see values below).
Token
5XNN
10. 1. 1. Example
•
625 #5623 072 5099#46127##
#562 wait for 200 ms of 425 Hz dial tone, for up to four seconds
3
dial the contents of 621
072 pause for two seconds
5025 drop the Exchange side of line in order to wait for incoming ringing for up to
25 seconds; provide no audible tones to the subscriber side
#461 answers the Exchange line upon detection of incoming ringing (looks for
200 ms of 440 Hz for up to two seconds
2
dial destination number
7
through connect
##
string terminator.
8380-383-115-BA
Issue 2, June 1999
CHAPTER 10
X = 0 no audible tone heard by the subscriber side
X = 1 audible tone heard by the subscriber side
NN = 00-99 "wait for ringing" seconds
XNN =
Callback
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