1. mdandashly's Avatar
    Got my Nexus 4 in the mail today and plugged in my SIM. I am on ATT coming from an S3. For some reason I cannot talk on the phone and use mobile data at the same time. If I am on the phone, it tells me I have no data connection. I have never had a problem with this before using an iPhone or the S3.

    Note: I did change my APN settings to the ones recommended by some users on the forum.

    What gives? Any ideas?
    12-06-2012 04:14 PM
  2. captsoto's Avatar
    I read it does not do voice and data at the same time.
    12-06-2012 04:31 PM
  3. mdandashly's Avatar
    I read it does not do voice and data at the same time.
    That can't be right...
    12-06-2012 04:35 PM
  4. captsoto's Avatar
    12-06-2012 07:01 PM
  5. Xelion's Avatar
    Data and calls work for me at the same time. I don't know if this is the reason, but when I went to ATT to get my new sim card, they needed the IMEI number. I was told it was so I could use my data plan. No idea if its true.
    12-06-2012 07:30 PM
  6. mdandashly's Avatar
    Data and calls work for me at the same time. I don't know if this is the reason, but when I went to ATT to get my new sim card, they needed the IMEI number. I was told it was so I could use my data plan. No idea if its true.
    So after messing around with my APN settings a bit I do have it working. My speeds normally are around 3-6 download. However, when I'm on a call they drop down to like 500 kbs or lower. So I basically cant load any pages, or it takes me quite a while to.

    I am switching from an S3 so I have an lte data plan. When I called ATT and gave them my IMEI, they told me it is a 2g phone and could only put a 2g plan on it...

    I am a little disappointed because on my previous androids and iphones I could always talk and surf, and now I can't. I really need this functionality in order to work, etc.
    12-06-2012 07:51 PM
  7. Dramer77's Avatar
    Data and calls work for me at the same time. I don't know if this is the reason, but when I went to ATT to get my new sim card, they needed the IMEI number. I was told it was so I could use my data plan. No idea if its true.
    Did they put you on a basic smartphone plan or a 4g plan? And did you change your APN settings or use he default

    Sent from my Amazon Kindle Fire using Android Central Forums
    12-06-2012 07:55 PM
  8. mdandashly's Avatar
    Did they put you on a basic smartphone plan or a 4g plan? And did you change your APN settings or use he default

    Sent from my Amazon Kindle Fire using Android Central Forums
    I am on the 4g plan that I've had since buying my GS3. The default APN settings worked for mobile data (cingular.wap or something), but not for data while on a call, but they were very slow.
    12-06-2012 08:04 PM
  9. Xelion's Avatar
    So after messing around with my APN settings a bit I do have it working. My speeds normally are around 3-6 download. However, when I'm on a call they drop down to like 500 kbs or lower. So I basically cant load any pages, or it takes me quite a while to.

    I am switching from an S3 so I have an lte data plan. When I called ATT and gave them my IMEI, they told me it is a 2g phone and could only put a 2g plan on it...

    I am a little disappointed because on my previous androids and iphones I could always talk and surf, and now I can't. I really need this functionality in order to work, etc.
    Did they put you on a basic smartphone plan or a 4g plan? And did you change your APN settings or use he default

    Sent from my Amazon Kindle Fire using Android Central Forums
    It is still unlimited 4g. I had this same plan on my HTC inspire 4g, so nothing had to change. Although, when I went in and they said they needed to activate my phone, I made it very clear that I wanted nothing changed to my plan. No contract renewal. No nothing. Just a sim card that would work. She said that's all she was doing anyways. It is slow while on my phone when I'm talking, so I'm not sure what that is about. Also, if you have to upgrade your data plan, then good luck keeping unlimited if that's what you have.
    12-06-2012 10:56 PM
  10. jd914's Avatar
    I read it does not do voice and data at the same time.
    That's misinformation, I tested this various times and the N4 does data and voice simultaneously. I'm on ATT LTE unlimited Data plan.

    Sent from my Nexus 4 using Tapatalk 2
    12-06-2012 11:17 PM
  11. Dramer77's Avatar
    It is still unlimited 4g. I had this same plan on my HTC inspire 4g, so nothing had to change. Although, when I went in and they said they needed to activate my phone, I made it very clear that I wanted nothing changed to my plan. No contract renewal. No nothing. Just a sim card that would work. She said that's all she was doing anyways. It is slow while on my phone when I'm talking, so I'm not sure what that is about. Also, if you have to upgrade your data plan, then good luck keeping unlimited if that's what you have.
    What APN setting did you use

    Sent from my Nexus 4 using Android Central Forums
    12-07-2012 01:42 AM
  12. Xelion's Avatar
    What APN setting did you use

    Sent from my Nexus 4 using Android Central Forums
    Default.

    Name: ATT WAP
    APN: wap.cingular
    Proxy: wireless.cingular.com
    Port: 80
    Username: Not set
    Password: Not set
    Server: cingulargprs.com
    MMSC: http://mmsc.cingular.com
    MMS proxy: wireless.cingular.com
    MMS port: not set
    MCC: 310
    MNC: 410
    Authentication type: Not set
    APN type: default,supl,mms
    APN protocol: IPv4
    APN roaming protocol: IPv4
    APN enabled
    Bearer: unspecified
    12-07-2012 09:16 AM
  13. Dramer77's Avatar
    Default.

    Name: ATT WAP
    APN: wap.cingular
    Proxy: wireless.cingular.com
    Port: 80
    Username: Not set
    Password: Not set
    Server: cingulargprs.com
    MMSC: http://mmsc.cingular.com
    MMS proxy: wireless.cingular.com
    MMS port: not set
    MCC: 310
    MNC: 410
    Authentication type: Not set
    APN type: default,supl,mms
    APN protocol: IPv4
    APN roaming protocol: IPv4
    APN enabled
    Bearer: unspecified
    Well that could be one problem.. Your using basic smartphone setting which are actually wrong... Did you make sure they changed your plan to the proper smartphone 4G plan?

    Here's a screenshot of the proper settings, I've seen some people giving out the wrong settings to people on here..

    Create a new APN and use these settings.. Then make sure you click the circle on the right to select it after you save it and back out... Then restart your phone

    Sent from my Nexus 4 using Android Central Forums
    Attached Thumbnails No mobile data when on the phone AT&T-uploadfromtaptalk1354895147276.jpg   No mobile data when on the phone AT&T-uploadfromtaptalk1354895160659.jpg   No mobile data when on the phone AT&T-uploadfromtaptalk1354895181135.jpg  
    Phil Nickinson likes this.
    12-07-2012 09:47 AM
  14. Dramer77's Avatar
    Sent from my Nexus 4 using Android Central Forums
    Attached Thumbnails No mobile data when on the phone AT&T-uploadfromtaptalk1354895388188.jpg  
    Phil Nickinson likes this.
    12-07-2012 09:49 AM
  15. Xelion's Avatar
    Well that could be one problem.. Your using basic smartphone setting which are actually wrong... Did you make sure they changed your plan to the proper smartphone 4G plan?

    Here's a screenshot of the proper settings, I've seen some people giving out the wrong settings to people on here..

    Create a new APN and use these settings.. Then make sure you click the circle on the right to select it after you save it and back out... Then restart your phone

    Sent from my Nexus 4 using Android Central Forums
    I'm not having a problem other than slower data while talking on the phone. But that seems better than no data while talking. Will changing my APN cause that? And I'm pretty sure I have the 4g smartphone data plan. It doesn't specifically say 4g, but it says my data plan required unlimited data before upgrading to the 4g device. Pics below.

    Edit: Well speedtest works now. Forgot to mention that. It would show 0 download and ~1mbps upload. Now it shows 5.3mpbs download. So I guess those APN settings make some difference. Thanks! Limited testing seems to show data only working during phone calls when the other person isn't speaking. But it could just be weird timing.


    12-07-2012 10:08 AM
  16. Dramer77's Avatar
    I'm not having a problem other than slower data while talking on the phone. But that seems better than no data while talking. Will changing my APN cause that? And I'm pretty sure I have the 4g smartphone data plan. It doesn't specifically say 4g, but it says my data plan required unlimited data before upgrading to the 4g device. Pics below.

    Edit: Well speedtest works now. Forgot to mention that. It would show 0 download and ~1mbps upload. Now it shows 5.3mpbs download. So I guess those APN settings make some difference. Thanks! Limited testing seems to show data only working during phone calls when the other person isn't speaking. But it could just be weird timing.

    http://i.imgur.com/5Rex8.png
    http://i.imgur.com/YX4zb.png
    Yes the APN setting make a huge difference, and your not on a 4 G plan that's a basic smartphone plan, which will only give you HSPA not hspa+... you need to get them to switch it to a 4g HSPA+ smartphone plan... for some reason when the nexus imei is entered into the system at att it only pulls up a basic smartphone plan.. the basic CS rep will prob have issues with this, higher tier reps have the ability to just change plans at will, or managers at att corporate stores...once you get the right plan provisioned you speeds will likely almost double... I've seen 8.89DL on mine at my house...

    Sent from my Amazon Kindle Fire using Android Central Forums
    12-07-2012 12:11 PM
  17. Joel_Urano's Avatar
    Does anyone have any ideas on how to get a tablet from China on the AT&T 3G network? I have a sim on a 3GB 4GLTE Tablet plan but can only get 2G throughput. Thoughts?
    12-28-2012 12:38 PM

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