At the base stations AS405/AS415 and A415/A415A may occur a permanent ringing at an incoming call on a additionally registered handset .
This phenomenon occurs when the additional handset on the base only provides GAP functionality and one of the first three ringing tones is set.
- C-Class (except C300H, CS310H)
- A(x)120H, A(x)130H, A220H, AL230
Solution is to choose a melodie larger than three on the affected handset.