For Senior ordered - TOP! Super value!

After extensive research I ordered this for my Gigaset 76 year old mother. The as "senior phones" advertised equipment could not convince me all because they often lack certain technical characteristics or, more simply, bad technique is offered at inflated prices.

positive:
My mother had the following requirements: 1. The phone must be compatible with a Fritz box. Fits perfectly. Was immediately recognized and finally my mother has suffered no power outages more (1 & 1 Fritzbox)! 2. large buttons. Does the C430, even with lighting. (For comparison, we have the S810 and the Comp system are the keys of the C430 large.). 3. good legibility on the display. Fits well. She uses reading glasses and can read everything clearly, also offers excellent contrast and lighting. 4. ease of use. After a short briefing you will find everything you need. She finds her phone logical and had no problems using.
The answering machine I switched because my mother does not want to use the. But, she could, if she wanted. The keys 2 - 9 can be used as speed dial keys. So they can in an emergency sometimes quite quickly reach someone - a simple emergency.
The C430 I set up and connected in a short time. Thanks to our S810 barely read was announced. The second handset I could feed with the entered data from the 1st problems by data transfer. My mother is very easy to understand, if you like me (no reverb or similar) and their callers as well. All self-tested. My mother feels all voices as normal, easy to understand. She has noticed no noise or static. Earpiece volume is adjustable and suitable for hearing aids.

negative:
Only the ringtones. But one goes like this. Enough.

Conclusion: 100% recommendation. Of course, for all non-elderly who are looking for a decent phone to make phone calls. That is surely what a phone can need.

Will report here when my mother finds negative after prolonged use.