10.47.2. Service Information 
- There is no permanent allocation of extension numbers to B channels.
- The CRC4 test is activated and deactivated with the parameter QUAL (AMO LWPAR).
- In a configuration with another device, the OpenScape 4000 should be set as master for clocking and layer 2 (AMO LWPAR).
- This is a point-to-point connection, in other words there is only one terminal connected to the port.
- If you do not use MSNs but still want to be able to reach the connected device several times using the primary station number, set the parameter MULTRA in the associated COS for the relevant primary station number service.