10.13.3. Service Information 
- For each terminal with display, space in memory must be generated in DIMSU. For each memory space, approximately 1.1 KB is reserved.
- For each optiPoint 410/420 with 4-line display, memory for CALLOGS must be allocated in DIMSU.
- This feature is marketed with every station and needs no special release by code word.
- If stations with COM-manager or for e.g. with their own integrated call logs are used, the internal OpenScape 4000 call log should not be configured.
- This feature is not available for Cordless Multicell Integration and Hicom Trading E.
- Die data are not stored on the hard disk (not RELOAD-proof).