Nexus 7 GSM phone add on? Anyone working on this? - Nexus 7 Q&A, Help & Troubleshooting

I find more that I am carrying around my nexus 7 so much, to the point where I could see leaving my phone out of my pocket at times...If I could reliably make phone calls on it using T-Mobile.
Yes, VOIP exists, but the lack of reliable latency over 4G makes "phone" service still essential.
Is there a way to hook up GSM hardware over USB to the Nexus 7 so phone calls can be made using a cell network? Is it something anyone is working on? Again, I'm NOT talking about VOIP, Google voice, etc.

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Web browsing/data while on a call

I can usually browse the web and use data while I'm on a phone call.
Tonight I tried it and had no data connection until disconnecting the voice call. Can anyone who has not installed the OTA verify that it is still working? Or anyone with the OTA? Maybe I'm just crazy and am remembering something that didn't happen? No, I'm sure I could do both before.
I would hate to lose it this feature.
Sent from my T-Mobile G2 using XDA App
Works for me.. I've heard people say this happend before the update too, but I've never had any issues with it. Best thing to do is call tmobile to help you. It might have something to do with a weak signal, or not enough signal to handle both at the same time.
Have you tried using wifi calling and then browse the web through your wifi? That would prove it was somehow related to network signal.
Sent from my T-Mobile G2 using XDA App
My net won't work on Edge during a call, and is kind of laggy on 3G.
Sent from my T-Mobile G(dos)
U can only use data and voice with 3g/4g.
Edge uses the same stream as voice so you cant do both on edga data.
But I always use data and voice, mainly when looking up addresses or phone numbers
Sent from my T-Mobile G2 using XDA App
So maybe it was because I was on an Edge only network at the time of the phone call? I'll have to experiment more. To tell the truth I hardly make any phone calls with my cell phone.
This was all during a 35 minute trip across town so it's hard to believe it's on Edge the entire time since I have really good H access around town.
I'll call T-Mobile soon if it doesn't fix itself.
I've also been using a SIM that came with my Sidekick which was two phones ago. Going to also ask them if I am on the best web plan.
Thanks for the help.
Bishybob said:
I can usually browse the web and use data while I'm on a phone call.
Tonight I tried it and had no data connection until disconnecting the voice call. Can anyone who has not installed the OTA verify that it is still working? Or anyone with the OTA? Maybe I'm just crazy and am remembering something that didn't happen? No, I'm sure I could do both before.
I would hate to lose it this feature.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
I have noticed this problem on my HD2 for a while now. I am sitting on a nice 3G signal and the moment a voice call connects, my data connection dies. it does eventually drop to Edge or GPRS but bounces back the instant I'm off my call. it's really consistent as in the moment I connect, it goes.
I've seen this behavior on both my Windows and Android builds on my HD2.
I'm starting to think this is either a hardware issue or perhaps a greater T-Mobile one.
Any thoughts?
Bishybob said:
So maybe it was because I was on an Edge only network at the time of the phone call? I'll have to experiment more. To tell the truth I hardly make any phone calls with my cell phone.
This was all during a 35 minute trip across town so it's hard to believe it's on Edge the entire time since I have really good H access around town.
I'll call T-Mobile soon if it doesn't fix itself.
I've also been using a SIM that came with my Sidekick which was two phones ago. Going to also ask them if I am on the best web plan.
Thanks for the help.
Click to expand...
Click to collapse
*#*#4636#*#*
Phone information
WCDM ONLY
Change it back when done
Sent from my T-Mobile G2 using XDA App
it usally takes about 30 sec for me to recover data on my phone sometime on 3g even on my tp2
I'm pretty sure now it was because I was on Edge. I've been able to use web while talking just fine recently.

telephony hardware

Does it exist on tis tab?
how about on
http://www.sierrawireless.com/Newsr...Wireless_4G_LTE_Mobile_Broadband_Network.aspx
which may be the card going in the xoom?
Lastly if the hardware exists on an lte device, should it be possible to make calls work by switching the sim card with a lte phone sim?
I think that if you would like to place phone calls with your Xoom using the cell radio its possible to find a way. Verizon might not be happy with it.
However, Its the hard way to place calls.
Sigh up with a VoIP provider, and use a SIP Client.
I like a provider named Vitelity. You can port your number to them if you would like. They are very inexpensive, and very reliable. (or use Skype, or anyone else.)
Then, use a SIP dialer and a Bluetooth headset on your Xoom. I am doing just that using Verizon 3g and it works great.
I have signed up for skype and have a number, but skype seems to have no interest in real BT support, neither does Google. If I could force Skype to use the mic on a BT< I could likely live with it, but AFAIK that is not possible.
This all be in another forum, however I am using CSIPSimple and it supports my plantronic BT voyager 510, (on Honeycomb)
http://www.plantronics.com/us/product/voyager-510&skuId=sku4610016
And, CSIPSimple opens the default Android Dialer (Which is in Honeycomb) to send and receive calls.
Would you mind testing it to be sure?
If so, place a call, leave your pad and walk like 15 feet and see if you are still heard.
Please don't be offended, I have just had WAY to many people say the same thing as you, only to find out A2DP let them hear, and they were using the tab mic without knowing it.
Hmmm.. I will check later tonight. That is a good question.
Thanks young... anyone else use csip too?
The hardware is capable, the problem is with the provisioning. Verizon adds feature codes to block voice and SMS on their tablet data plans.
what stops us from switching sims later to make our tablets look like a phone?
Morkai Almandragon said:
what stops us from switching sims later to make our tablets look like a phone?
Click to expand...
Click to collapse
There is no sim to switch.
Sent from my Xoom using Tapatalk
So then? Any tablet outside of the us ( or Verizon) is able
To standard phonecalls?
I'm in the uk and I was planning to buy the 3g version but if I still have to carry a phone to txt or call, i'll choose the WiFi one, save 200 bucks, and tether with my nexus when needed although I'm not very happy with the idea of carrying multiple devices...
Btw , 3g version has been priced in.....600 pounds! What are they playing at? If I finally choose wifionly I'll buy for sure in the US, screw carphone and pcworld..
Sent from my Desire HD using Tapatalk
I think you are asking a question that no one can answer at the moment.
LTE does use a SIM card, but, NO devices are currently available on Verizon's LTE network yet, so no one knows what happens if you switch LTE SIM cards between devices.
I also think that LTE devices use a VoIP type of voice connection, something different then how voice is done on CDMA. This new type of connection allows data and Voice to operate at the same time. This functionality, this Software dialer stack would need to be included in Honeycomb, which is not a phone Android distribution.
Young dud you test the bluetooth mic with csip?
Yes. I I have found is that I do have two way audio, all on the Bluetooth headset using csip, I walked around my house, leaving the Xoom several rooms away.
While in WiFi, Bluetooth audio was sketchy at best. For most calls, I could not get the headset in engage for the call. While in the call I would press Bluetooth on the dialer, and nothing would happen, or the audio would cut in and out, before engaging, or a few times I would have to press 'Speaker", then Bluetooth, then Speaker again before it would engage. When it would engage in WiFi I did have two way audio.
While in 3G, with WiFi Off, the connection with Bluetooth was perfect every time. No issues. The call call quality overall was a bit less then with WiFi, however Bluetooth worked correctly.
UPDATE: I just had a bad Bluetooth connection issue on 3G. So, it is spotty. It might be because CSip uses the default Android dialer which might be incomplete in some way on Honeycomb.
I should try another SIP app. But Bluetooth does have two way audio when I can get it to connect.

3G N7 as phone

Anyone know if it's likely the 3G N7 will work as a phone when connected to a Bluetooth headset? I don't think other 3G tablets (Android or IOS) have this functionality enabled, do they?
I'm not sure on your question specifically. However, I wonder if the 3G will support the use of VoIP technology so you can use something like GrooveIP lite (via google voice) to make phone calls (as many do over WIFI) - the only problem being that it's not the most efficient use of bandwidth/min of talk time.
I dare say the 3G connection would support it so long as VoIP is allowed by your carrier.
I was thinking more of using it as a GSM phone replacement. If I have my N7 with me anyway, I could use something like this maybe as the 'handset'
http://gigaom.com/mobile/can-bluetooth-handsets-help-the-smartphone-to-tablet-switch/
Short answer is probably no.
Look up tablet talk on the play store though, as long as your phone is in your bag/pocket you could use that to do what you're talking about
Sent from my Nexus 7 using xda app-developers app
Calls on HTC Flyer works. So maybe some devs will implement this feature...
Kearkan said:
Short answer is probably no.
Look up tablet talk on the play store though, as long as your phone is in your bag/pocket you could use that to do what you're talking about
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I have TabletTalk. It's good for what it does, but I'm wondering if I can go forwards with essentially one device with 1 SIM (plus headset) not a tablet + phone.
I suppose I could "emulate" what I want with a small phone tethered to a WiFi N7 with WiFi, plus TabletTalk. But the phone will be running WiFi hotspot mode on all the time and battery life will be awful on it, right? Better to be able to use the tablet as a rather large phone and a bluetooth headset connected to it for calls. This scenario will also be a mess when I move to an area with it's own WiFi, as I don't think I can have the tablet connected to another WiFi connection at the same time as the phone. And I can connect the phone using Bluetooth for TabletTalk, but I can't use the Bluetooth connection effectively for tethering to the phone for data.
crazy cat said:
Calls on HTC Flyer works. So maybe some devs will implement this feature...
Click to expand...
Click to collapse
Well, I guess there's a chance it will anyway on the N7, but you'd have thought it would have been a promoted feature if it was going to be possible out of the box...

Bounty for Wifi Calling ??

How can we get this badboy working with wifi calling, im well aware of tmobiles IMS service and how difficult it will be ( nothings impossible with XDA ) to get Tmobiles wifi calling working on this phone .. but im sure that some people like myself really depend on it !! Socal area sucks Id be willing to put 30$ towards the bounty to get this started .. anyone else interested ?
Try putting it in 2g mode for better signal
Sent from my Galaxy Nexus using Tapatalk 2
ac3theone said:
Try putting it in 2g mode for better signal
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
It doesnt make a difference, and its a known issue in this area that all the carriers suck
alleyezondisromo said:
It doesnt make a difference, and its a known issue in this area that all the carriers suck
Click to expand...
Click to collapse
I too would be willing to donate to this cause. However, I've been testing with GrooveIP over Wifi, and it works extremely well. Call quality is excellent and you can use it for incoming and outgoing calls without using your plan minutes. I'm using the $5 pro version which integrates with the native dialer, so you makes calls just like you would normally. I know this isn't the same thing as T-Mobile's Wifi calling, but it's a good solution nonetheless.
Best chances of it happening will be when opitmus g with JB is released by T-Mobile. Need system dump with rils, maybe some libs and maybe an apk will be in there. That's what we had to do with the G2 and many older devices when ICS came out. But might be a few months before u see anything. I heard rumors T-Mobile are setting up SIP support but its just rumors
I second the endorsement of GrooVe IP. I don't have my N4 yet (caught in Play Store limbo, like so many others), but in anticipation I've been testing GrooVe IP lightly on my LG G2x and have found it to be very good, with audio quality noticeably better than wifi calling.
sipdroid with a free pbxes account. disable all codecs except speex. excellent.
I really wish google would improve the native sip client...
i'm in for $30 for nexus 4 wifi calling. a lack of wifi calling is only thing holding me back from getting a nexus 4. I have zero tmobile signal inside my house.. (okay, a little at one corner, but not where my home office is.. )
I'd love to get a nexus 4.. but only if it has wifi calling.. even if it is a terrible cm7/gb2.3 hack to get it working.. Obviously, IMS calling would be best.. but as long as it works..
I use groove Ip for my wifi calling. I fwd all my calls to my phone anyway since google voice is my main number, when I get home and connect wifi, groove IP takes over and I receive calls on my phone anyway.
I haven't had any issues using this method on the nexus 4.
dellenrules said:
I use groove Ip for my wifi calling. I fwd all my calls to my phone anyway since google voice is my main number, when I get home and connect wifi, groove IP takes over and I receive calls on my phone anyway.
I haven't had any issues using this method on the nexus 4.
Click to expand...
Click to collapse
Using your Nexus 4 for wifi calling with Groove ip do the people ever mention echo or dropped words? I ask that because using my tablet for such calls I can hear a little of both. I have fixed some of it via settings for Groove ip but it is still there some and I was wondering if it worked better with the phone?
It might be possible if the T-Mobile version of the LG Optimus phones with the same hardware have it. Assuming someone can hack it together, and the differences in OS aren't a show stopper.
donec said:
Using your Nexus 4 for wifi calling with Groove ip do the people ever mention echo or dropped words? I ask that because using my tablet for such calls I can hear a little of both. I have fixed some of it via settings for Groove ip but it is still there some and I was wondering if it worked better with the phone?
Click to expand...
Click to collapse
My testing has mostly been by calling my other voicemail line and listening to the recording, so it's only been short segments, but I haven't detected any echoes or dropouts so far.
I've made hour long calls to landline and mobiles with absolutely no drops or issues. In fact the quality is better than what I experienced on vzw. I would say it is on par with my FiOS landline phone. It will of course depend on the quality of your WiFi connection, particularly jitter and latency.
Sent from my Nexus 4 using Tapatalk 2
arvonn said:
i'm in for $30 for nexus 4 wifi calling. a lack of wifi calling is only thing holding me back from getting a nexus 4. I have zero tmobile signal inside my house.. (okay, a little at one corner, but not where my home office is.. )
I'd love to get a nexus 4.. but only if it has wifi calling.. even if it is a terrible cm7/gb2.3 hack to get it working.. Obviously, IMS calling would be best.. but as long as it works..
Click to expand...
Click to collapse
try giving T-mobile a call, they might give you a cell booster
donec said:
Using your Nexus 4 for wifi calling with Groove ip do the people ever mention echo or dropped words? I ask that because using my tablet for such calls I can hear a little of both. I have fixed some of it via settings for Groove ip but it is still there some and I was wondering if it worked better with the phone?
Click to expand...
Click to collapse
I had echoing when I first used it, but solved it by enabling the basic echo canceller. It send a beep when the call connects then auto magically adjust the device for echoes.
Haven't had a problem since.
dellenrules said:
I had echoing when I first used it, but solved it by enabling the basic echo canceller. It send a beep when the call connects then auto magically adjust the device for echoes.
Haven't had a problem since.
Click to expand...
Click to collapse
Yes, I forgot to mention that I had enabled the basic echo canceling as well. Seems to work fine in my testing.
wmm said:
Yes, I forgot to mention that I had enabled the basic echo canceling as well. Seems to work fine in my testing.
Click to expand...
Click to collapse
I didn't realize google voice costs $20 to port my number to them. PLus the $5 for GrooVe IP, I'm going to be into this for $25, but at least I should be able to use my phone in my house again.
Has anyone tried Bobsled for this?
u are not alone in this hunt... good news is... 2013 is a good year for voip.
so first off all let me just tell u, ive been hunting for a good FREE VOIP, 4 wayyy to frigging long.
but i have finally got the perfect COMBO of apps that get the job done, and might i add quite well too!
first go set up ur google voice account and get u a free number....
download google voice.... pray ur phone has had service at one point or another....and google acceepts ur phone to allow u to use google voice (google voice is a pain in the ass to get it to register sometimes)...for some reason they want only people with active service to use their service... which makes no sense at all.....but... sometimes those free texting apps that give u 10 FREE minutes calling will do it....
then go download gv+ or mo+ (same friggin thing_ same devoloper) - seems like when one is acting up i can uninstall it and download the other and it will work perfectly for about 2 months then i gota switch back to the other again... its odd...
but i can call anywhere in america for free.... no questions asked... as long as i download voice and install it also. idk
i actually use voice for all my texting and then when i wana call sum1 then i use the mo+ app. and it works flawlessly. no weird numbers, no grainy calls, no echo... its wonderful!

[Q] Magicjack with T-Mobile

Just curious if anyone else has T-Mobile and also a Magicjack?
Up until a few weeks ago this was working fine, and had been for 2 years. But recently we are no longer able to RECEIVE calls from a T-Mobile cell phone. When you call the magicjack number from the cell you get a message stating "all circuits are busy now, please try your call again later. Message NC26955".
I am, however, able to call the call a T-Mobile cell phone just fine. So basically, OUTGOING calls to T-Mobile cell phones work fine, but INCOMING calls do not.
I have already verified that Verizon phones work fine, as do land lines. The problem is isolated to T-Mobile cell phones.
I have also spent hours dealing with both magicjack and T-Mobile support, both of whom claim that there is no issue with their service.
I have also verified that the correct ports (5060 and 5070 UDP) are open to the magicjack. Anyway, nothing there has changed either.
Anyone have any other ideas of things to try?
at4r1 said:
Just curious if anyone else has T-Mobile and also a Magicjack?
Up until a few weeks ago this was working fine, and had been for 2 years. But recently we are no longer able to RECEIVE calls from a T-Mobile cell phone. When you call the magicjack number from the cell you get a message stating "all circuits are busy now, please try your call again later. Message NC26955".
I am, however, able to call the call a T-Mobile cell phone just fine. So basically, OUTGOING calls to T-Mobile cell phones work fine, but INCOMING calls do not.
I have already verified that Verizon phones work fine, as do land lines. The problem is isolated to T-Mobile cell phones.
I have also spent hours dealing with both magicjack and T-Mobile support, both of whom claim that there is no issue with their service.
I have also verified that the correct ports (5060 and 5070 UDP) are open to the magicjack. Anyway, nothing there has changed either.
Anyone have any other ideas of things to try?
Click to expand...
Click to collapse
Obviously this should not be happening. It does sound like a magic jack issue. If you like you can pm me the mj# and I'll give it a try from here in San Diego. Are there any other ports you can use btw? Just to cover all the bases?
Sent from my Nexus 7 (2013)
Berrydroidcafe said:
Obviously this should not be happening. It does sound like a magic jack issue. If you like you can pm me the mj# and I'll give it a try from here in San Diego. Are there any other ports you can use btw? Just to cover all the bases?
Sent from my Nexus 7 (2013)
Click to expand...
Click to collapse
I was convinced it was a magicjack issue, until my brother called me from his verizon phone. The only phones that can't call me are tmo cell phones. However, I can turn around and call a tmo phone just fine.
I spoke with tmo support again today and they are going to send me a cell signal booster. So hopefully I won't even need the magicjack anymore if I can get our cell phones to work inside the house.
As far as the ports go, those are the ones that magicjack uses for VOIP.
at4r1 said:
I was convinced it was a magicjack issue, until my brother called me from his verizon phone. The only phones that can't call me are tmo cell phones. However, I can turn around and call a tmo phone just fine.
I spoke with tmo support again today and they are going to send me a cell signal booster. So hopefully I won't even need the magicjack anymore if I can get our cell phones to work inside the house.
As far as the ports go, those are the ones that magicjack uses for VOIP.
Click to expand...
Click to collapse
Ok. My wife use to use magic jack. She's in the Philippines and we never had any problems with it. I'm with tmo, that's why I volunteered to call you if you wanted. I would suggest wifi calling, but I'm not sure if tmo still offers that!
Well, hopefully this cell signal booster works for you.
Sent from my Nexus 7 (2013)
Yeah, if WiFi calling worked on the nexus 4 that would be awesome.
Sent from my Nexus 4 using xda app-developers app
Magic Jack error NC26955
Please advise on the procedure to solve this problem. Thanks
at4r1 said:
Just curious if anyone else has T-Mobile and also a Magicjack?
Up until a few weeks ago this was working fine, and had been for 2 years. But recently we are no longer able to RECEIVE calls from a T-Mobile cell phone. When you call the magicjack number from the cell you get a message stating "all circuits are busy now, please try your call again later. Message NC26955".
I am, however, able to call the call a T-Mobile cell phone just fine. So basically, OUTGOING calls to T-Mobile cell phones work fine, but INCOMING calls do not.
I have already verified that Verizon phones work fine, as do land lines. The problem is isolated to T-Mobile cell phones.
I have also spent hours dealing with both magicjack and T-Mobile support, both of whom claim that there is no issue with their service.
I have also verified that the correct ports (5060 and 5070 UDP) are open to the magicjack. Anyway, nothing there has changed either.
Anyone have any other ideas of things to try?
Click to expand...
Click to collapse
There is no solution that i know of.
Sent from my Nexus 4 using xda app-developers app

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