I have 2 sims in note 9. Sim 1 data sim 4g/3g(auto connect).
Sim 2 for calling 2g only.
During call on sim 2 , sim 1 stope working for internet.
When finish call on sim2, sim1 start for data.
Please update is there any kind of settings to enable sim 1 data during call on sim2.
Try looking in...
Sim Card Manager.
Dual Sim Always On.
Are both sim cards on the same network or different networks.
I ask as if they are both on the same network you may need to ask your network if they support surfing while making or receiving a call.
I have two different network sim cards in my phone so I'll check how mine behaves for you.
If I use the same sim for calls and internet then my internet stays On during a call.
If I use one sim for a call and then the 2nd sim for internet then internet disables during a call.
From googling I've read that some say having voLTE activated on the calls means internet remains !
Unfortunately as I'm a Payg Customer my UK Network isn't providing 4G calling aka voLTE to my account yet.
So in conclusion this looks to be a network restriction and not a restriction of the Phone itself.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 2.5/ Android 10.
thanks for your help.
Both sims from different networks.
But I checked with Samsung help & got that both sims can not work togeather. As per my case, when I will make or receive call on my 2nd sim then 1st sim will be stop working even its a data sim.
I've noticed that on Huawei P30 Pro you are allowed to use internet from both sims, why on Note is not the same? Very annoying, being in a call and no internet on the other sim