Has the COT parameter ABPD (answering before suffix-dialing or announcement)
for the digital exchange trunks been set?
This COT parameter is mandatory for digital exchange lines, since the
exchange will otherwise not receive the necessary criterion for switching
through the call, i.e. the caller will not be able to hear the announcement.
For analog exchange lines, this parameter is not checked. However,
it must still be assigned if the exchange requires an answering criterion
before switching through the connection.
The same applies for incoming exchange traffic via transit lines,
i.e. the COT parameter is not checked for the transit line. The parameter
must be set if the calling exchange in the originating node requires
an answering criterion before switching through the connection.
If the parameter is set, call charge pulses are signaled immediately
the announcement is started.
Have the 2 timers WFIRST and WNEXT of the device handler of the TMOM2
been set to the appropriate values? (DTIM1)
WFIRST defines the wait time for the first start of the announcement
after connecting to the announcement unit. In START/STOP operation, this
value can be kept small (1 - 4 sec.). If the announcement is run in CONTINUOUS
mode, the value must be greater than the length of the announcement.
If this timer runs down, a line alarm is set for the TMOM board. In this
case, you must check the JP interface cables.
WNEXT defines the wait time for the next start of the announcement
following the first start. This value must always be set to a longer
value than the announcement length. If timer runs down a line alarm is
also set.
No synchronized announcement is injected after a call transfer (e.g.
to CCM), although the transferring party heard the announcement before
transfer.
This can happened under the following circumstances:
- The announcement type of the synchronized announcement is in START/STOP
operating mode.
- Only one announcement unit is assigned to this announcement type
- The transferring terminal was the only device connected with the
synchronized announcement.
In this constellation the announcement unit is released during the transfer
procedure and needs several seconds to become operable again. Therefore,
for the transferred station there is no seizable announcement unit available
at the time of transfer (from EV 3.0).
Solution: Assign a second announcement unit to this announcement type.
Set the operating mode of the announcement type
to CONT.
