Questions about Cyrus CS45 XA

Cyrus CS45 XA, where can I see the complete call list of a specific contact? With the C 30 you could

Hello Can both SIM slots be operated simultaneously with at least 3G, or is one slot automatically reduced to 2G? I am aware that this question has already been asked, but the answer was negative - this irritates me... Perhaps someone can explain this from their own experience?

Quick question: Does the CyrusCS45 XA have an ordinary aux connection?

I've got this phone, all' perfectly, buy still remain a Problem... The whatsapp notifications... frequently i can't recive them. Suddently I recive the message only when i open the app. In the past I had other Cyrus phone buy With android 7 or 6 and in tose phones the problem didn't appear. Is It normal? I've controlled the notification manager, but all still appear correct...

Are the processor specifications (8-core, 1.5 GHz) correct? According to the manufacturer's website, the specifications are as follows: CPU 2.3 GHz Octacore Chipset MediaTek Helio P35 (MT6765) https://www.cyrus-technology.de/en/devices/smartphones/cs-45/ (I hope I am not comparing apples with oranges)

I have a question about the dualSIM function: can you use 2 networks without having to use 2G ? many dualSIM devices are no longer usable in switzerland because the SIM that is not used for data only runs on 2G and 2G networks are excluded in switzerland.

We have a Cyrus C28 Hipster. It's OK so far, but can't block a phone number (unwanted calls). The menu item simply doesn't exist 🧐...But an Android phone should be able to do that. Hence the question: Can someone please confirm to me that this CS 45 XA phone can do this (i.e. blacklist)? It's a knock-out criterion for us....

In the Facebook comments from Cyrus itself, you can read that the phone was delivered last week? When will it be available at Digitec? Is this indication of 4-6 weeks still true or could it be earlier? Thank you for an answer.