Unable to call if SIM 1 data is enabled - Android Q&A, Help & Troubleshooting

I have a Dual SIM phone running Android 6.0.1 with two SIMs from two different operators. Once I enable mobile data on SIM No. 1 after some time I am unable to send and receive voice calls. To fix that I must turn the phone OFF / ON and it is then possible to make phone calls. But after some time the same problem is back. In case I deactivate mobile data on SIM No. 1 and activate it on SIM No. 2 the phone is working well and there is no any problem with incoming / outcoming calls on SIM No. 1 or SIM No. 2. Please help.

Related

Dual Sim Question - 1 Data Sim, 1 Voice/SMS Sim

(Redmi Note 3 Snapdragon)
I understand it is possible to use 1 sim slot for data (3G/4G) and the other with voice/sms (2G).
But will a voice call or sms come through while you are using data on the data sim?
Thanks
Yes...
while using data with Data SIM... you can receives SMS and Calls from Other SIM..
both of SIM will be active at same time.. so you won't have any problem with Call receiving while using Data with Another SIM...!!
its dual standby
F.A.I.S.A.L said:
Yes...
while using data with Data SIM... you can receives SMS and Calls from Other SIM..
both of SIM will be active at same time.. so you won't have any problem with Call receiving while using Data with Another SIM...!!
Click to expand...
Click to collapse
its dual standby not dual active bro.....
http://www.mi.com/in/note3/tech/

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.

Whether H860N asking which sim when call?

I want to buy dual sim phone, I think about H860N question is:
whether phone asking every call which sim-sim1 or sim2 or is possible to set call from sim1 only or sim2 only?
No, it does not ask every call, it's you who switch to one network or the other, and you can also assign a sim card to one or more contacts
In my old Nokia dual sim I have 2 options: assign 1 sim card to make call or ask every time which sim card-in H860N is same think?

Dual SIM issue

I have a strange issue with dual SIM.
I use a Telekom SIM in Slot 1 and a Vodafone SIM in slot 2.
Both Sims are correctly registered in their network and I can use data with either Sim card.
I settings I I did not preset any SIM for outgoing calls, so I can choose in the dialer which SIM I want to use for the call. However, no matter which SIM I use, always SIM 1 (Telekom) does the outgoing call.
if I deactivate SIM 1 and do a call, SIM 2 should automatically be used. But then I get an error "mobile network not available". Although data via the mobile network is working.
If I completely remove the Telekom SIM from the phone, everything works fine with the Vodafone SIM. So it is not a problem of the SIM card itself.
If I swap SIM cards and put Telekom in SIM2 and Vodafone in SIM1, also always the Telekom SIM is used. (SIM2 now).
I appreciate any help or ideas.
Same problem
I have the same problem and it is very strange why not people have noticed, I almost didn't find it in any reviews
I use 2 Sims as well be it 2 Swiss Providers but for me everything works as it should. I can choose to Use either Sim1 or Sim2 which works as it should. I can also set to use Data from either Sim1 or Sim 2 or even combined.
So it might not be that noone has noticed this problem - which could be provider specific - perhaps its just working fine for them, like it is for me
bill340 said:
I have a strange issue with dual SIM.
I use a Telekom SIM in Slot 1 and a Vodafone SIM in slot 2.
Both Sims are correctly registered in their network and I can use data with either Sim card.
I settings I I did not preset any SIM for outgoing calls, so I can choose in the dialer which SIM I want to use for the call. However, no matter which SIM I use, always SIM 1 (Telekom) does the outgoing call.
if I deactivate SIM 1 and do a call, SIM 2 should automatically be used. But then I get an error "mobile network not available". Although data via the mobile network is working.
If I completely remove the Telekom SIM from the phone, everything works fine with the Vodafone SIM. So it is not a problem of the SIM card itself.
If I swap SIM cards and put Telekom in SIM2 and Vodafone in SIM1, also always the Telekom SIM is used. (SIM2 now).
I appreciate any help or ideas.
Click to expand...
Click to collapse
Mines ok, I use 2 Vodafone UK sims and eveything is fine.
Sent from my [device_name] using XDA-Developers Legacy app
bill340 said:
I have a strange issue with dual SIM.
I use a Telekom SIM in Slot 1 and a Vodafone SIM in slot 2.
Both Sims are correctly registered in their network and I can use data with either Sim card.
I settings I I did not preset any SIM for outgoing calls, so I can choose in the dialer which SIM I want to use for the call. However, no matter which SIM I use, always SIM 1 (Telekom) does the outgoing call.
if I deactivate SIM 1 and do a call, SIM 2 should automatically be used. But then I get an error "mobile network not available". Although data via the mobile network is working.
If I completely remove the Telekom SIM from the phone, everything works fine with the Vodafone SIM. So it is not a problem of the SIM card itself.
If I swap SIM cards and put Telekom in SIM2 and Vodafone in SIM1, also always the Telekom SIM is used. (SIM2 now).
I appreciate any help or ideas.
Click to expand...
Click to collapse
I had this issue with EE UK and Three a full system reset fixed it for me
Tokolosh said:
I use 2 Sims as well be it 2 Swiss Providers but for me everything works as it should. I can choose to Use either Sim1 or Sim2 which works as it should. I can also set to use Data from either Sim1 or Sim 2 or even combined.
So it might not be that noone has noticed this problem - which could be provider specific - perhaps its just working fine for them, like it is for me
Click to expand...
Click to collapse
How Can you use combined data for sim1&sim2
Envoyé de mon LYA-L29 en utilisant Tapatalk
Hi Guys,
Just realized a quick fix for myself.
Settings-> Apps -> Apps -> Tap on Settings (3 Vertical Dots on right hand top corner) - > Show system Processes -> Type Search for "Phone"
Clear Cache and Data for:
1. Phone Services
2. Phone/Messaging Storage
Reboot. the calling function on both the sims should get functional.
Cheers!

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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