Note 9 dual sim

[New-User9]

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.

[BandOfBrothers]

Hey @New-User9

Try looking in...

Settings  

Connections.

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.

 Edit.

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. 

[New-User9]

@Bnadof Brothers

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.