13.3.4.3. Announcements for Calls to Multiple CCM 
- Is the "Synchronous Announcements for CCM calls" feature activated in the central system data (ZAND: CCM, SYNCACCM=Y)?
- Has the COP parameter CCR been set for the route concerned?
- Is parallel ringing configured? (ZAND: CCM, STNRNG=NO)
Parallel ringing is configured if the STNRNG parameter is set to Y, i.e. if the forwarding station and the CCM are rung in parallel. In this case, callers will hear the ringback tone.
- Is the announcement reason (ANNCCM) entered in the ANNTONE branch in the AMO-SYNCA?
- Is the CCM set to MEET ME operation? (TSCSU)
- Is the COT parameter CHRT set for the connecting line, i.e. can the call be transferred to the CCM?
- Have the correct entries been made in the announcement reason/announcement
type table, ANNMITR? (SYNCA)
- For direct dialing to the CCM, the appropriate announcement types must be entered for the ANNCCM announcement reason in the ANNMITR table for the ITR number of the called party (for internal CCM users) or for the ITR number of the CCM (for external CCM users.
- For callers who reach the code-calling system via FWD/FNANS/FBSY, the appropriate announcement types must be entered for the ANNCCM 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 CCM applies.
- Has the internal application (calling party is terminal) been enabled
for internal traffic using AMO ZAND (from EV 3.0)?
AMO-ZAND BRANCH CCM, parameter ISYNCCCM = YES
- Is the parameter ANSYN set in the internal terminal's COS?