5.16.10.2. Service Information 
- If an entry exists in the table for an FDS area, but no entry exists under the SDS area, all further digit strings are blocked (as of the SDS area).
- Several LDSRT tables can also be assigned to one route.
- A route in which the LDSRT test fails is not suitable to be inserted into a queue (Chapter on page 433)
- If a large number of entries are needed in the LDSRT table, it may be necessary to modify the value LCRDSR of the AM DIMSU, i.e. to further increase it.
- This function can also be combined with other LCR features.
Figure 32. Call Setup Procedure with Restriction Tables
