At factory default the phone only supports a restricted configuration.
An advanced configruration is possible if you use the phone at an elmeg PBX.
If you donít use the phone at an elmeg PBX you can get the advanced configuration by the following procedure:
enable advanced settings: **46782551##
disable advanced settings: **46782550##
If you disconnect the phone from the ISDN line the advanced configuration is disabled automatically.
CS400xt | CS410 | CS410-U
 Advanced configuration