With TCU

Fault profiles for telephone book
The last four columns contain the information on which telephone systems each fault profile applies to:

A: telephone systems with cordless handset (e.g. optional extra 638)

B: telephone systems with hard-wired mobile phone (e.g. optional extra 639 E6x before 03/2005 without Bluetooth retrofit, E65 US before 03/2005, optional extra 664 before 03/2005)

C: Telephone systems with mobile phone connected via Bluetooth (e.g. optional extra 633, optional extra 639 E6x with Bluetooth retrofit, optional extra 639 E6x as of 03/2005, E65 US as of 03/2005, optional extra 664 E65 as of 03/2005 (not Korea), optional extra 639 E87 or E90 and their derivatives as of volume production launch)

D: telephone systems with snap-in adapter connected via Bluetooth (e.g. optional extra 664, only Korea)