Yes, all Gigaset DECT phones are compatible,

No. The Gigaset SL450HX comes without a base station. None of the upc boxes has one built in where you can simply register this device.

I always have the handset in the charging station.

Are Gigaset phones compatible? Yes, all Gigaset DECT phones are compatible because they have GAP. However, Gigaset has also equipped some devices with additional functions, such as central phone book, HD voice quality, wake-up call, etc.. , which have been defined with the additional DECT standard CAT-iq 2.0.

Not in my opinion.

With the Sunrise Internetbox from Sagemcom, the blocking is carried out via this. https://www.sunrise.ch/content/dam/sunrise/residential/hilfe/internet/Sunrise_Home_Handbuch_Sunrise_Internet_Box_neue_firmware_d.pdf Instruction from page 88.

Yes, is in

Yes, works perfectly for me

I was able to connect my AirPods to the phone without any problems.

It is compatible with the DX800 A (which is what we use). Unfortunately, I cannot say whether it is compatible with the Gigaset Repeater HX.

Works perfectly for me. Registration was completed within 15 seconds.

You can forward a call by going to Network Services, then to Call Forwarding, then you can enter the phone number.

I have SL450A GO on it, they work. The old SL78H also work.

I have three Gigaset SL450HX in a network. Entries in the phone book are transferred via Bluetooth (not automatically). I don't know if more handsets can be added - but I assume that this should not be a problem. For more information see: http://gse.gigaset.com/fileadmin/legacy-assets/CustomerCare/Manuals/SL4xx/SL450/A31008-M2701-B101-1-19_13-03-2017_de_AT-DE-LU.pdf

The Gigaset works with routers with conventional DECT protocol. This has nothing to do with the Internet provider, but depends on the router or telephone exchange installed in your home.

I cannot answer the question. We operate the part on a gigaset base station. Works perfectly!

I have had such bad experiences with Centro Grande and Swisscom in recent years that I can unfortunately no longer consider this company. I therefore now rent my Internet connection from Init7, and my IP telephone provider is Sipcall. The Gigaset is connected (directly) to a Fritz!Box. There are a few problems with this, but basically it runs out-of-the-box. The probability that the Gigaset SL450 HX will run on a Swisscom/Pirelli Centro Grande is close to ZERO.

Anonymous calls can be muted or completely blocked, and a block list of up to 15 numbers can be created.

We had no problems. First deregister the old handsets according to the DX800A instructions and then register the new SL450HX. This has worked for us for half a year without any problems. Greetings