Make a phone call in one SIM and simultaneously browse with the other



  • I have a Samsung Galaxy S10e SM-G970F that I'd like to use for phone calls and simultaneously as an hotspot (WiFi tethering) to browse from my laptop.

    The phone has 2 sim cards.

    I'm unable to make a phone call in one sim and simultaneously browse with the other.

    As soon as a phone call begins in SIM1, the data connection drops in SIM2.

    I tried many different combinations settings of:

    • VoLTE calls SIM 1/2
    • Allow all SIMs to use data in calls
    • Dual SIM always on

    I also tried switching "Calls" and "Mobile data" between the 2 SIMs.

    So far no luck. Please, do you have any tips to achieve what I need?



  • https://m.gsmarena.com/samsung_galaxy_s10e-9537.php#sm-g970f/ds says your phone has SIMs in DSDS mode

    To achieve what you want you need a phone with SIMs in DSDA mode

    See https://android.stackexchange.com/q/69045/131553

    So, sorry, you won't be able to achieve what you want with your phone.


    For reference:

    • From the https://www.gsma.com/newsroom/wp-content/uploads//TS.37-v4.0.pdf

    Dual SIM Dual Standby (DSDS): both SIMs can be used for idle-mode network connection, but when a radio connection is active the second connection is disabled. As in the passive case, the SIMs in a DSDS device share a single transceiver. Through time multiplexing two radio connections are maintained in idle mode. When in-call on one network it is no longer possible to maintain radio connection to the second network, hence that connection is unavailable for the duration of the call. Registration to the second network is maintained

    Dual SIM Dual Active (DSDA): both SIMs can be used in both idle and connected modes. Each SIM has a dedicated transceiver, meaning that there are no interdependencies on idle or connected mode operation at the modem level. Note that in some DSDA devices the second transceiver may be 2G-only.

    • https://9to5google.com/2021/02/22/android-12-pixel-5g-dsds/amp/



Suggested Topics

  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2