Disable Telephony on secondary slot. - Android Q&A, Help & Troubleshooting

Hello,
i have Redmi Note 3 Pro with Dual Sim, CM13.1 and ROOT. In the second SIM slot i want to use a multiSIM card i am sharing with my wife. I want to use the multiSIM card for data only, i don't want to receive any calls or sms from this card. Is there any "hack" to ignore/disable calls and sms from a specific sim?

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Change default sim card on rooted phone with dual sim

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The first card is used for data connection and the second one for texts and calls.
Best regards,
grunai.
edit:
I have found the solution but using paid app so I will post it if I can

slot one Volte network for calls and Other slot for data

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Dual sim standby not working correctly

I have a S5 klte duos and i have tested and both of my sim card slots can do 3G but when I use them both (one for data and one for calls/SMS) it forces one of the sims to 2G. Is there any way I can get dual sim standby? I want to get calls and texts and have data. But I don't care if my data is interrupted from a call or a text.

G965F (Dual-Sim). Wifi-calling and VoLTE dont work when SIM 2 is "data-sim"

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I have the S9+ G965F with two sim-cards. Sim 1 is for calls and sms. Sim 2 is for data. However the phone does not allow both cards to use the 4G network.
Sim 1 is on 2G/3G network
Sim 2 is on 2G/3G/4G
So obviously VoLTE dont work for Sim 1. I didn't expect anything else.
But it seems that Wifi-calling (Sim 1) doesen't work either when Sim 2 is set to 2G/3G/4G
If I set Sim 1 to calling, sms, and data both VoLTE and Wifi-calling works.
Is there any fix for this?
I am on stock (NEE CSC) rom. I have root and custom kernel (Flash Kernel)
This is how Samsung implemented the Dual SIM ability on this phone. We cant do anything to change it
As far as I remember, Huawei Mate 10 Pro was the only phone that I used and it had dual VoLTE (thus VoWiFi) and it didn't matter which card you had for data
Does this mean that no future software will be available to enable this function?
Huawei Mate 10 (non Pro) also supports dual VoLTE. I believe it is the same for P20 Pro. Samsung is behind in this area. Hopefully, S10+ will have this feature.
Hello. I am bumping this up, because I'm considering buying a Dual SIM S9, but I need WiFi calling on one SIM and mobile data on the second one.
Maybe someone could confirm whether with the OS upgrades (currently Android 10 I think), this issue has been fixed? Is it possible to have WiFi Calling on the first SIM and mobile data active on the second one?

Dual SIM SIM1 personal with calls/data and SIM2 for work with calls/data

I have dual sim phone - SIM1 personal with calls/data and SIM2 for work with calls/data. The phone forces me to define one of the two SIM cards as default for data (aka browse the web). The problem is that if I define SIM1 as default data card, if I receive or make a call from SIM1 I can browse the web using data during the call, but if I make or receive a call with SIM2, during the call I can't browse the web (because it is dual standby). In settings menu I tried to change the default data SIM card during the call to SIM2 to continue browsing the web during the call with SIM2, but the phone tells me that" Can't change the default data card during the call". The problem is the same if I define the default data card to SIM2, so during a call with SIM1 I can't browse the web. So, resuming, the annoying thing is that I have a dual SIM phone and I have 2 SIM card both with calls and data plan, the phone forces me to define one of them as default to data, but during a call with the SIM that is not defined as default data card I can't use the web. If at least I could change, in settings menu, the default data SIM during the call it will solve my problem but the phone doesn't allow me to do that during the call. This is ridiculous!! The only chance is, if I need to access the internet during the call, to say "I will shut down this call to swipe my default SIM card to access the internet so I can talk to you while I can browse the web and read the email that you are refering to and call you again", this all in 2019, simply ridiculous.
Anyone can help me? I tried in some phones of some of my friends and it always happens the same (I tried in Asus Zenfone 3, Samsung S9, Xiaomi Mi9T). Please if anyone can help me because this behaviour makes no sense and makes dual sim completely useless nowadays.

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