13.3.4.8. Announcements for Suffix Dialing if Called Station is Busy 
- Is the feature "Suffix dialing if busy" enabled? (FEASU: POSTBUSY)
- Is the connecting line an analog exchange line?
The function is currently only implemented for analog exchange lines.
- Is the COT parameter PDOB set for the connecting line?
- Are you sure that the COT parameter IFR is NOT set for the connecting line?
- Has the station user enabled automatic override?
- Is the announcement reason (SDBUSY) entered in the ANNTONE branch in the AMO-SYNCA?
- Have the correct entries been made in the announcement reason/announcement type table,
ANNMITR?
(SYNCA)
- For direct lines:
- For direct dialing to the a station user, the appropriate announcement types must be entered for the SDBUSY announcement reason in the ANNMITR table for the ITR number of the called, busy station user.
- For callers who reach the station user via FWD/FNANS/FBSY, the appropriate announcement types must be entered for the ANNBUSY announcement reason in the ANNMITR table for the ITR number of the forwarding station. However, this only works for forwarding stations in the same node as the announcement unit or in homogeneous OS4k networks, where the partner node can provide the ITR group information for the redirecting station. Otherwise, the ITR number of the called, busy station user applies.
- For transit lines:
In this case, the connection is cleared back to the node with the exchange line interface (originating node).
- Is the synchronized announcement configured in the originating node?
- For direct dialing to the a station user, the appropriate announcement types must be entered for the SDBUSY announcement reason in the ANNMITR table for the ITR number of the calling exchange line.
- For callers who reach the station user via FWD/FNANS/FBSY, the appropriate announcement types must be entered for the ANNBUSY announcement reason in the ANNMITR table for the ITR number of the forwarding station. However, this only works for forwarding stations in the same node as the announcement unit or in homogeneous OS4k networks, where the partner node can provide the ITR group information for the redirecting station. Otherwise, the ITR number of the exchange line applies.
- For direct lines: