Dual standby for data-only + call-only

[Avery5]

I have a SIM card that I strictly use for 3G/4G data, and another SIM card strictly for conventional 3G voice call/sms.

Will a dual standby phone suffice for my purpose or do I need dual active?

I.e. for dual standby, will turning on 3G/4G mobile data/WiFi prevent the other SIM from receiving calls?

It's not a problem if receiving a call turns off the data on the other SIM as I will not be browsing the Web in the middle of a call.

 

[lohsenglte]

I have a SIM card that I strictly use for 3G/4G data, and another SIM card strictly for conventional 3G voice call/sms.

Will a dual standby phone suffice for my purpose or do I need dual active?

I.e. for dual standby, will turning on 3G/4G mobile data/WiFi prevent the other SIM from receiving calls?

It's not a problem if receiving a call turns off the data on the other SIM as I will not be browsing the Web in the middle of a call.

Let's treat the data SIM as SIM1, and voice/text SIM as SIM2.

There's no 4G+3G dual SIM dual active devices on the market yet, so it's not a choice.

4G+3G dual SIM dual standby devices:
- If SIM1 receives/makes a call, data can be made, but if no VoLTE, only 3G voice call, the network would be snail. SIM2 will not be able to make/receive calls and texts. If you're on WiFi you can still use WiFi to surf the web.

- If SIM2 receives/makes a call, data service will be stopped. SIM1 will not be able to use data, voice and text. If you're on WiFi, you can still use WiFi to surf the web.

- Data/WiFi on SIM1 would not mean SIM2 have no voice/text service, unless there is voice traffic on one SIM, another SIM will be affected.

Sent from Redmi Note 4 MTK using GAGT

 

[Avery5]

Let's treat the data SIM as SIM1, and voice/text SIM as SIM2.

There's no 4G+3G dual SIM dual active devices on the market yet, so it's not a choice.

4G+3G dual SIM dual standby devices:
- If SIM1 receives/makes a call, data can be made, but if no VoLTE, only 3G voice call, the network would be snail. SIM2 will not be able to make/receive calls and texts. If you're on WiFi you can still use WiFi to surf the web.

- If SIM2 receives/makes a call, data service will be stopped. SIM1 will not be able to use data, voice and text. If you're on WiFi, you can still use WiFi to surf the web.

- Data/WiFi on SIM1 would not mean SIM2 have no voice/text service, unless there is voice traffic on one SIM, another SIM will be affected.

So in short, SIM 2 can still receive calls when SIM1 has data turned on?
SIM1 will not receive voice calls. My only objective is not to miss calls from SIM 2.

 

[lohsenglte]

So in short, SIM 2 can still receive calls when SIM1 has data turned on?
SIM1 will not receive voice calls. My only objective is not to miss calls from SIM 2.

Yes.

Sent from Redmi Note 4 MTK using GAGT

 

[Elnin0]

There is dual standby phone available. Sim 1 on 3G or 4G (data) while sim 2 on 3G (call)

E.G. XiaoMi note 3, 4. XiaoMi Max.