Caution: The "call pickup by pressing a button" only works with certain base stations! Without this feature, you must use the clip as an internal extension, which is cumbersome in practice and greatly reduced the benefits of hands-free clip for our purposes. The forwarding to an internal device to be accessed from the menu on the handset ever. In business meetings, this is usually not practical ("Please wait, I derive more equal to my hands-free device ...").
Before buying you should therefore check necessarily on the Gigaset website compatibility! (Customer -> compatibility) You have to understand that although certain handsets are listed in the manual as being compatible, but the base station decides whether all functions are supported. Ie in the list always check whether the respective Gigaset Station supports call pickup by pressing a button. Other manufacturers are expected to support the clip only as a mobile extension.
Our Gigaset DX800A supports the clip is incomplete, the SL400A only from production in date March 2011th
A big minus was the poor documentation. That the base station about the compatibility decides I found out only by means of expensive Hotline (1.24 / minute). Neither the manual nor the Internet, this was documented. So who will search only for the handset used, easily falls on the nose ...
[Supplement: There are now in a revised Gigaset Compatibility List (8 ... [...] - see comment below). Now the compatibility is checked to a base station and no longer absurdly to a handset. So you can clearly see before buying now that there are restrictions on the use.
I have increased the rating one star, but we continue to hold the device for not very useful. Without call pickup by pressing a button, the L410 is far too cumbersome for everyday business life. We have just in the corner.]