21.7. Service Information 
- IP terminals must be configured not only in the system but also at the terminal itself.n external
- If SPE is activated at the IP endpoints an external NTP server must be used for time synchronization. For that OpenScape 4000 Assistant should not be used. The performance of the hardware/software of the OpenScape 4000 Assistant is not sufficient for this use case.
- A SoftClient is configured like an optiPoint telephone (you can therefore replace an optiPoint IP telephone with a SoftClient).
- LAN port settings should always be made on the telephone to avoid duplex mismatch.
- There is no adapter for OpenStage telephones.
- A host/client configuration is only possible with OpenStage telephones.