1. anacrusis's Avatar
    I just switched from my HTC Lte 4g and love my S6 except I can't be on a call and use the Internet at the same time. I did this every weekday on my HTC. Is that normal?
    04-14-2015 04:29 AM
  2. hiattech's Avatar
    I'm on Verizon and have the same issue. I used to do browsing and be on the phone a lot but now when I make a call it drops to 1x... I'm not really happy about this. Is there a setting that fixes that or is that just how it works? If so I'll be switching to something else.
    04-14-2015 11:47 AM
  3. Almeuit's Avatar
    Unfortunately you cannot do this anymore on Sprint. I will list below as to why.

    The older phones had two CDMA radios put in them (such as the S3 on Sprint). One dedicated to voice -- another dedicated to data. Therefore you could do voice and data. GSM has always been one radio .. because that one radio can do both tasks at the same time. They got around it on CDMA by simply adding another radio in there and dedicating each one to one task.

    Now a days they're getting rid of that second CDMA radio. So therefore you can only use talk, or data -- not both at the same time. Now if you're using VoLTE it will allow voice and data since the call will be going through LTE (as data) and .. data will be data. So it is technically then all data.
    04-14-2015 12:12 PM
  4. hiattech's Avatar
    OK strike that. I figured out the problem. You have to enable your HD calling for 4G to remain on during calls. You don't have to make the HD call but you have to have that feature enabled. To find it, go to settings, advanced calling, activate advanced calling. Once it's activated, you can choose to turn HD calls on or off. I understand that they do use data so making calls while on WiFi is fine but if you're limited on data plan, I would suggest disabling it when calling via 4g
    04-14-2015 12:13 PM
  5. Almeuit's Avatar
    OK strike that. I figured out the problem. You have to enable your HD calling for 4G to remain on during calls. You don't have to make the HD call but you have to have that feature enabled. To find it, go to settings, advanced calling, activate advanced calling. Once it's activated, you can choose to turn HD calls on or off. I understand that they do use data so making calls while on WiFi is fine but if you're limited on data plan, I would suggest disabling it when calling via 4g
    Advanced calling (VoLTE) will work for you since you're on Verizon. For him being on Sprint he can't do this since they do not have VoLTE yet.

    Also on a side note .. VoLTE will not use your data for normal calls. The call is technically data but won't count against your cap.
    04-14-2015 12:15 PM
  6. hiattech's Avatar
    good to know. Thanks
    04-14-2015 12:54 PM
  7. Zoostation's Avatar
    Looking to replace my HTC Droid DNA with an S6 and we've been considering getting away from Verizon, but I lose high speed data while calling if I switch from Verizon to Sprint?
    04-14-2015 01:15 PM
  8. hiattech's Avatar
    That's what it sounds like. It may be something to discuss with Sprint if you're considering. I'm guessing it depends on the phone. Personally, I'd stick with Verizon. Yes they cost a little more but they have a lot going for them that the other companies don't.
    04-14-2015 01:59 PM
  9. Almeuit's Avatar
    Looking to replace my HTC Droid DNA with an S6 and we've been considering getting away from Verizon, but I lose high speed data while calling if I switch from Verizon to Sprint?
    Yes.
    04-14-2015 02:00 PM
  10. Zoostation's Avatar
    Yes.
    Does that apply to areas with Spark coverage?
    04-14-2015 02:19 PM
  11. Almeuit's Avatar
    Does that apply to areas with Spark coverage?
    Even with Spark it won't work at this time (if I recall correctly) -- Since Sprint doesn't have VoLTE. That is why Verizon is pushing VoLTE so hard because they know the functionality of the dual radios has been removed. Also mainly because (one day) in the future they want to get rid of the old network and be all LTE.
    04-14-2015 02:27 PM
  12. anacrusis's Avatar
    Thanks for all the info. It sucks but I can live with it. The only reason I stick with Sprint is for my company discount.
    04-14-2015 05:00 PM
  13. anacrusis's Avatar
    Does At&t have the same issue?
    04-16-2015 03:38 AM
  14. linebusy's Avatar
    Does At&t have the same issue?
    No.

    That's why I'm switching to AT&T as soon as the gold version is available (though I really wanted blue). Verizon's extended area are where I make my living, so I cannot use VoLTE. If I can't use VoLTE, I can't have simultaneous V/D. If I can't have simultaneous V/D, then I'm getting off their network and moving to GSM/HSPA via AT&T, which is and always has been able to support both, even in the 3g days, with a single radio.
    04-16-2015 07:50 AM
  15. linebusy's Avatar
    BTW....

    We have a sticky in the S6 and M9 forums for the radio information (which is what this topic is about... radio)
    04-16-2015 07:53 AM
  16. Almeuit's Avatar
    BTW....

    We have a sticky in the S6 and M9 forums for the radio information (which is what this topic is about... radio)
    Very true but some may not understand it (as in not knowing how they did the radios in the past versus now and why).. So no harm in asking .
    04-16-2015 09:38 AM
  17. linebusy's Avatar
    Very true but some may not understand it (as in not knowing how they did the radios in the past versus now and why).. So no harm in asking .
    For sure. Just directing them to more conversation/information. Titled "radio" some might not make the connection.
    04-16-2015 11:36 AM
  18. billyj32's Avatar
    had the same problem went in my phone was on global changed to lte/cdma solved the problem i can text and talk and send email while on the phone
    04-16-2015 08:02 PM
  19. devinjotyler's Avatar
    HERE IS WHAT YOU DO TO FIX THE ISSUE (if with verizon)

    1. turn phone off
    2. turn phone back on
    3. dial #832 and call
    4. hangup when you hear "your test call has been successful

    Your issue should now be resolved. Place a phone call and browse the internet to check.
    09-29-2015 07:59 AM
  20. odarellmc's Avatar
    had the same problem went in my phone was on global changed to lte/cdma solved the problem i can text and talk and send email while on the phone
    That won't solve the talk and data issue, lte was disabled when I tried to make a call using lte/CDMA network setting

    Posted via the Android Central App
    10-13-2015 08:32 AM
  21. stephanie_thomas's Avatar
    I just switched from my HTC Lte 4g and love my S6 except I can't be on a call and use the Internet at the same time. I did this every weekday on my HTC. Is that normal?
    12-26-2015 10:07 PM
  22. D.P.G.'s Avatar
    With AT&T and T-Mobil simultaneous Voice and Data works perfectly. With Verizon it will only work using VoLTE and with Sprint it does not work at all. With this said back in April when I switched to Sprint and the S6 it raised a concern and I'm sure the level of this issue will vary between an individuals usage but I gave Sprint a try and for the substantial cost savings in my case this was the correct decision. Sprint network is remarkably fast call quality is good and over these 9 months only twice did this issue come up and it simply put the data on hold I took the call when complete the data resumed. In 9 months I saved $720.00 with Sprint compared to Verizon so it just makes sense. Before everyone jumps in about carries performance I understand location has everting to do with how well a carrier performs and I must happen to be in an area that Sprint does well.
    12-27-2015 09:59 AM
  23. enufsk8er's Avatar
    I had this problem when I first switched to sprint, and I'm surprised to see such little available information on this topic as I have thoroughly researched this topic time to time.

    I switched to sprint to save money, I bought the new M9 and was very excited to have unlimited data. I added hotspot to use on my laptop for work because in my warehouse I do not have direct internet lines in my makeshift office. After realizing my internet broke up every time I received a call I was furious to find out most of the new Sprint phones no longer have dual antenna's or radios..BULL****. Determined to find a way... I stumbled upon my gf's phone by accident, she could have voice and data simultaneously on her samsung galaxy s4 model 720. Now there's two model 720 models you need make sure you get the right one with dual radios. So inevitably I traded in my M9 for a S4, but now I'm rooted with hotspot and big middle finger to sprint and unlimited data. The s4 is so good with hotspot I watch HD netflix, and dont have a internet bill!
    odarellmc1 likes this.
    12-28-2015 08:06 PM
  24. jthunter5's Avatar
    I am noticing that every time I reach out & grab my phone to look at a Text, or FB or do something else, that suddenly the phone starts ringing with a new call coming in?? Why is this happening only when the Samsung S6 detects movement or activity with the phone?

    Does Samsung have some sort of movement detection system that activates the phone when picked up?

    It's a bit frustrating as I am trying to perform another task and a phone call starts to come in - happens often!
    03-08-2017 03:16 PM

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