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[25.June.2012][Dev] T-Mobile WiFi Calling Apps and Libs

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dublus

Senior Member
Apr 12, 2008
338
45

OK, it looks like both cLK and MAGLDR versions have the same problem now - only wifi data works once you flash the app. Of course each could have a unique cause.

I will try to get a logcat later tonight. It's not so easy because my son is now using the phone that had been my spare for testing and he isn't home much.

If anyone else can post logs as Tytung asked, please do so. I'm sure he would be happy to move forward once he as something to work with.
 

ceo4eva

Senior Member
Sep 30, 2008
741
42
30
Ellicott City
I installed this on MIUI 2.5.11 ICS ported by smokin901 I havnt actually made a call with WiFi but i know my text messages have not failed so far.. My only problem is that I would have no service as in 0 bars (its not showing no service) when i try to place a call it would immediately just end.. The WiFi calling logo would turn green and everything but the call will just end.. Idk if it's preventing me from getting calls but i just know that it will not make outgoing calls. My installation steps were pretty basic.. just downloaded the zip and installed it, no other steps was I wrong in doing that or will this only work on GB? I got my sim card yesterday 5/27/2012 so its new​
 
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kylew1212

Senior Member
Dec 1, 2011
485
281
Alabama
www.memoryx2.com
I did some testing today using parnoidandroid.

Task 29
Magldr
Flashed paranoid Android
Flashed wifi calling
Booted


I found out that I do have an invalid sim which causes my phone to freeze when trying to activate wifi calling. So if your phone seems to work normally but freezes when you activate wifi calling your sim is probably invalid also.

I tried my sisters sim and wifi calling did activate. However I had some problems. Text messages seemed to send fine. MMS messages didn't work (it is possible I didn't allow enough time but a 100kb pic shouldn't take 5mins to send over wifi). I also tried calling. I only made one call for just a few seconds and hung up because it was choppy and I couldn't understand anything.

I'm going to get another sim as soon as possible and provide better testing but I just wanted to give the information I have so far.


Sent from my HTC HD2 using xda premium
 
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kingman17

Member
Jul 18, 2010
32
1
WIFI calling app for HTC HD2 SD build_MIUI 2.3.30

Hello
Does any one know how to get wifi calling app for Android SD version for Leo, and how I can install it?
Rom MIUI 2.3.30
Please help
Thanks
 

muchelaguito

Senior Member
Jun 16, 2010
358
4
Rochester
OK, it looks like both cLK and MAGLDR versions have the same problem now - only wifi data works once you flash the app. Of course each could have a unique cause.

I will try to get a logcat later tonight. It's not so easy because my son is now using the phone that had been my spare for testing and he isn't home much.

If anyone else can post logs as Tytung asked, please do so. I'm sure he would be happy to move forward once he as something to work with.

I have exactly the same issue:
Installed the latest NexusHD2 v2.2 ICS ROM in a 200mb partition, RMNET and MAGLDR. I used it normally without wifi calling for 2 days. Installed WiFi calling today, and it worked... but it killed my mobile data. I have tried several things like turning off the app, etc, etc. Nothing brought my data back once WiFi was off. I flashed the RMNET_to_PPP_update.zip and that brought back my data... but WiFi Calling isn't connecting anymore. I guess I can collect logs and whatever necessary. Would somebody be kind enough as to point me to a link with information on how to do so? Oh, and I have an updated SIM.
 

kylew1212

Senior Member
Dec 1, 2011
485
281
Alabama
www.memoryx2.com
I have exactly the same issue:
Installed the latest NexusHD2 v2.2 ICS ROM in a 200mb partition, RMNET and MAGLDR. I used it normally without wifi calling for 2 days. Installed WiFi calling today, and it worked... but it killed my mobile data. I have tried several things like turning off the app, etc, etc. Nothing brought my data back once WiFi was off. I flashed the RMNET_to_PPP_update.zip and that brought back my data... but WiFi Calling isn't connecting anymore. I guess I can collect logs and whatever necessary. Would somebody be kind enough as to point me to a link with information on how to do so? Oh, and I have an updated SIM.

Download the Android developer tools. Tytung posted what's needed a few pages back. (I'm on my phone or I would link)

Once you get that go to terminal (Linux)

Type cd then type where your tools are located.

Once you are in your tools directory connect your phone and type

./adb logcat

Adb is located in the platform tools folder. So that is the directory you need.

I think that the windows commands are about the same I know cd is and maybe ./ (pretty much just means run)

Hope this helps some. Their are others here with more knowledge than me but that's a start :)


Sent from my HTC HD2 using xda premium
 

muchelaguito

Senior Member
Jun 16, 2010
358
4
Rochester
Sorry Guys, I wanted to help with this, but my HTC HD2 passed away recently. His heart gave up while riding the Maid of the Mists in Niagara Falls. Should have shown him some love and protection, but I forced him to take some pics even though it was pouring on top of us. May he rest in peace.

:"-((

Download the Android developer tools. Tytung posted what's needed a few pages back. (I'm on my phone or I would link)

Once you get that go to terminal (Linux)

Type cd then type where your tools are located.

Once you are in your tools directory connect your phone and type

./adb logcat

Adb is located in the platform tools folder. So that is the directory you need.

I think that the windows commands are about the same I know cd is and maybe ./ (pretty much just means run)

Hope this helps some. Their are others here with more knowledge than me but that's a start :)


Sent from my HTC HD2 using xda premium
 

kylew1212

Senior Member
Dec 1, 2011
485
281
Alabama
www.memoryx2.com
Sorry Guys, I wanted to help with this, but my HTC HD2 passed away recently. His heart gave up while riding the Maid of the Mists in Niagara Falls. Should have shown him some love and protection, but I forced him to take some pics even though it was pouring on top of us. May he rest in peace.

:"-((

Go buy a bag of rice. Get a bowl, put a thick layer of rice on the bottom. Then get your hd2 and take off the back cover, sim, battery, micro SD card and lay your phone on the rice. Pour more rice on top and then just leave it there for several days.

This worked for my phone although it took about a week and I already had an insurance replacement on the way..

Good luck

Sent from my HTC HD2 using xda premium
 

dandambeanu

New member
Jan 3, 2008
2
0
Download the Android developer tools. Tytung posted what's needed a few pages back. (I'm on my phone or I would link)

Once you get that go to terminal (Linux)

Type cd then type where your tools are located.

Once you are in your tools directory connect your phone and type

./adb logcat

Adb is located in the platform tools folder. So that is the directory you need.

I think that the windows commands are about the same I know cd is and maybe ./ (pretty much just means run)

Hope this helps some. Their are others here with more knowledge than me but that's a start :)


Sent from my HTC HD2 using xda premium
I was just wondering if WiFi calling is working on any SD roms be it ginger-bread or ICS. Currently I'm running ICS 2.3 from SD card since I'm not quite ready to give up Windows 6.5 because of one paid software that is not available in Android.
Issue is that after WiFi calling turns on, the data portion quits working. The comments I've seen so far do state that WiFi calling is not possible on RMnet without giving up data but it will work on PPP but has generally a lot more issues with speeds and drop-out that grossly outweighs the benefit.
 

tytung

Senior Member
Jun 21, 2010
3,574
15,005
sites.google.com
I was just wondering if WiFi calling is working on any SD roms be it ginger-bread or ICS. Currently I'm running ICS 2.3 from SD card since I'm not quite ready to give up Windows 6.5 because of one paid software that is not available in Android.
Issue is that after WiFi calling turns on, the data portion quits working. The comments I've seen so far do state that WiFi calling is not possible on RMnet without giving up data but it will work on PPP but has generally a lot more issues with speeds and drop-out that grossly outweighs the benefit.

WiFi Calling is not related to NAND ROM or SD build.

WiFi Calling and RMNET (3G) works well at the same time on Gingerbread.

However there're some 3G issues on ICS according to the user feedback.
 
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tytung

Senior Member
Jun 21, 2010
3,574
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Well, I found that it's HTC-RIL 4.0.0024HMQ (Mar 12 2012,16:31:54) in WiFi-Calling-htcleo-ICS*.zip releases.

However it's HTC-RIL 2.2.0054HM (Nov 30 2010,16:37:51) in WiFi-Calling-htcleo-GB*.zip releases.

Since our radio is old and cannot be upgraded, maybe you could use GB version of libhtc_ril.so while flashing WiFi-Calling-htcleo-ICS*.zip.
You may need GB version of libril.so as well.

No logcat, no feedback from you.
Besides, I cannot test it myself because I'm not a T-Mobile customer, so no progress is normal.
 
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koz

Senior Member
Mar 11, 2006
197
10
Well, I found that it's HTC-RIL 4.0.0024HMQ (Mar 12 2012,16:31:54) in WiFi-Calling-htcleo-ICS*.zip releases.

However it's HTC-RIL 2.2.0054HM (Nov 30 2010,16:37:51) in WiFi-Calling-htcleo-GB*.zip releases.

Since our radio is old and cannot be upgraded, maybe you could use GB version of libhtc_ril.so while flashing WiFi-Calling-htcleo-ICS*.zip.
You may need GB version of libril.so as well.

No logcat, no feedback from you.
Besides, I cannot test it myself because I'm not a T-Mobile customer, so no progress is normal.

libhtc_ril.so from the GB zip dropped into ICS zip works. I have calls & sms working, but no mms through wifi (I'm not sure if this is normal).

There was no libril.so in the GB zip.

The rom I'm using is ParanoidAndroid 1.2a on NAND.

Thanks, tytung!
 

koz

Senior Member
Mar 11, 2006
197
10
Any differences between the ICS version of libhtc_ril.so and the GB version?

After some more testing, this is what I'm finding:
1. When I said 'it works', I should have been more specific. Previously, when I used the ICS zip, it killed my data. With the GB file included in the ICS zip, I no longer have the data problem. The problem is that I tried the ICS zip (without GB file) on another version of ParanoidAndroid ROM (v1.1). I'm now on PA v1.2, but I didn't try the unmodified ICS zip prior to the ICS zip with the GB file. So, I'm not sure if its a change in the ROM or the change with the libhtc_ril.so file (however, I'm guessing its the libhtc_ril.so).

2. Wifi calling doesn't register on the network unless 'wifi preferred' is selected under 'connection preferences'. It won't register under 'wifi only'. However, if I start the app under 'wifi preferred' it will register and then I can switch to 'wifi only'.

If you want, please PM me @ the logcat files if they'll be of more help.

Can you upload the hybrid file you created?

Sorry joshnchen - no offense, but I'd rather not clutter up this thread with files that aren't, for sure, working completely. If you'd like to duplicate what I did, all it involves is dragging and dropping one file (libhtc_ril.so) from this zip:
http://hotfile.com/dl/149602168/ba019b6/WiFi-Calling-htcleo-GB_for_NAND_v2.zip.html

to this zip
http://forum.xda-developers.com/attachment.php?attachmentid=1072593&d=1337524552

Then install it on your phone as you would any other zip.
 
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  • 44
    June 25 update:
    The latest WiFi Calling packages which support both MAGLDR and cLK with working mobile data.


    June 18 update:
    The universal update file for both MAGLDR and cLK is finished.
    Mobile data issue is fixed. It works well on MAGLDR. Please test with cLK.
    Please flash WiFi-Calling-htcleo-ICS_for_NAND_v2.zip and report your result.


    May 20 update:
    Included the latest ICS libs and app from the HTC Sensation ROM.
    Since I am not a T-Mobile customer, I cannot test it.
    But I think it may work for you.
    Please flash WiFi-Calling-htcleo-ICS_for_NAND_testing-0520.zip and report your result.


    Sep. 13 update:
    Included the latest lib and updated settings of default.prop from HTC Glacier ROM.


    Aug. 23 update:
    The universal update file for NAND is finished.
    I found that /system/default.prop has higher priority than /system/build.prop, so I moved WiFi Calling setup info from build.prop to default.prop.
    It's just a re-package for all Gingerbread ROMs. No new features.

    Known issues:
    If WiFi Calling makes yours phone freeze for whatever reasons, you should try the following steps.


    ====== The below info can be ignored. ======


    Aug. 2 update:
    Only build.prop is changed to match V2.9T NAND and SD.


    Jul. 9 update:
    Please replace wifi-calling-htcleo-gb-20110709_for_SD.zip (for WM6.5) after using NexusHD2-Gingerbread_V2.8_SD_(GB-2.3.4).7z on WM6.5.


    Jun. 28 update:
    Please flash wifi-calling-htcleo-gb-20110628.zip (for MAGLDR) after flashing NexusHD2-Gingerbread_V2.8_NAND_(Android-2.3.4)_update.zip.
    P.S. Only build.prop is changed to match V2.8T.


    Jun. 24 update:
    Good news here. WiFi Calling works well for most people now.
    Update your SIM card [pictures], then your phone won't get frozen. (It's very very important.)
    Reference post.



    Jun. 5 update:
    Please flash new wifi-calling-htcleo-gb-20110515 new for miui 1.5.20.zip. (Thanks to calculus.)
    P.S. Only build.prop is changed.


    May 18 update:
    Please flash wifi-calling-htcleo-gb-20110518.zip (for MAGLDR) after flashing NexusHD2-Gingerbread_V2.7_NAND_(Android-2.3.4)_update.zip.


    May 8 update: T-Mobile WiFi Calling on NexusHD2-Gingerbread V2.7T
    In order to enable WiFi Calling, we need to remove libhtc_ril_wrapper.so in init.rc and load libganril.so from build.prop instead.
    Thus, you must have MAGLDR 1.13 bootloader on device if you want to use WiFi Calling and 3G/HSDPA mobile network (RMNET).
    • CWM: backup and restore => Backup you current ROM first. (Required)
    • CWM: wipe data/factory reset to have a clean installation.
    Installation Guide for NexusHD2-Gingerbread V2.7:
    1. Flash MAGLDR
      • Download MAGLDR 1.13 (606 KB)
      • Enter SPL by holding VOL DOWN key while booting the phone. (Make sure you have HSPL.)
      • Run ROMUpdateUtility.exe to flash MAGLDR 1.13 (magldr.nbh).
    2. Flash ClockworkMod Recovery
      • Download MAGLDR_CWM_Recovery_v3.0.2.5_for_NexusHD2_135M.zip (5.1 MB)
      • Enter MAGLDR 1.13 by holding power key while booting the phone, and then select "USB Flasher" via "VolUp" and "VolDown". Confirm key is green "Call" button.
      • Edit flash.cfg and change "system ya 135M" to "system ya 145M". (Or use another method to enlarge your system space in order to provide enough space for WiFi Calling libs and apps.)
      • Run DAF.exe to flash ClockworkMod Recovery 3.0.2.5 (MAGLDR_recovery_3.0.2.5.img).
    3. Flash Android ROM
    4. Flash WiFi Calling libs and apps


    WiFi Calling works on HTC HD2 according to the following posts. (But some people still have wifi calling app freeze issues. No solution so far.)
    attachment.php


    Credits for WiFi Calling: zinx, unforgiven512, krohnjw, tytung, etc.

    Installation Guide for other ROMs:
    1. Make sure you have at least 15 MB free system space. Type adb shell df command to check the system space.
    2. Make sure you remove libhtc_ril_wrapper.so in init.rc.
    3. Make sure you add WiFi Calling settings in build.prop.
    4. Flash kernel_tytung_r10_update.zip (for Gingerbread 2.3.4 only)
      • Modify init.htcleo.rc and change service dhcpcd_eth0 to service dhcpcd before flashing kernel_tytung_r10_update.zip on Gingerbread 2.3.3.
    5. Flash wifi-calling-htcleo-20110508.zip
      • Get build.prop from your original ROM.
      • Edit build.prop with the following WiFi Calling settings.
        • Comment or remove rild.libpath=/system/lib/libhtc_ril.so
          Code:
          #rild.libpath=/system/lib/libhtc_ril.so
        • Add
          Code:
          # WiFi Calling #
          rild.libpath=/system/lib/librilswitch.so
          rilswitch.vendorlibpath=/system/lib/libhtc_ril.so
          rilswitch.ganlibpath=/system/lib/libganril.so
          mobiledata.interfaces=gannet0,rmnet0,rmnet1,rmnet2,ppp0,ppp1,ppp2
          # Extras #
          # Uncomment the following line if you enjoy having the 3G prefix :)
          #ro.ril.enable.3g.prefix=1
          ro.ril.def.agps.feature=1
      • Update your modified build.prop to /system/build.prop in wifi-calling-htcleo-20110508.zip before flashing it.

    If you're trying WiFi Calling and encounter any issues, please provide the logs of logcat. Thanks.
    Code:
    adb wait-for-device shell "logcat | grep 'KIPC\|GAN\|Kineto'" > logcat_Kineto.log
    adb wait-for-device shell "logcat -b radio" > logcat_radio.log
    adb wait-for-device shell "logcat" > logcat_ALL.log


    Below info is for NexusHD2-Gingerbread_V2.6T_WiFi-Calling_update_20110418.zip only.
    Apr. 25 update:
    Please flash tytung_r9_wificalling_update20110425.zip (for cLK and MAGLDR) after flashing NexusHD2-Gingerbread_V2.6T_WiFi-Calling_update_20110418.zip.


    Apr. 23 update:
    Please flash cLK_tytung_r9_wificalling_update20110423.zip (for cLK and MAGLDR) after flashing NexusHD2-Gingerbread_V2.6T_WiFi-Calling_update_20110418.zip.


    Apr. 18 update:
    I have added Kineto Gan stuff in my r9 kernel to support WiFi Calling for T-Mobile USA users.
    Current WiFi Calling app works on Froyo and Gingerbread.
    I'm not a T-Mobile user, so I get Invalid SIM error and cannot do more testings when running WiFi Calling app.
    If you are a T-Mobile customer and want to test my modified NexusHD2-Gingerbread ROM, please follow the steps below.

    According to T-Mobile Wifi Calling thread in Nexus S forum, we need a compatible RIL (libhtc_ril.so) (maybe need a compatible radio too) that supports WiFi Calling.


    Installations:
    You should have either MAGLDR 1.13 or cLK 1.4 bootloader on device.
    • CWM (ClockworkMod) Recovery Version via SD card (Flash update.zip)
      • Installing CWM_Recovery_for_NexusHD2 (135MB system and 2MB cache) (Required)
      • For Android installation you need to enter CWM Recovery.
      • CWM: backup and restore => Backup you current ROM first. (Required)
      • CWM: wipe data/factory reset to have a clean installation. (Required)
      • CWM: install zip from sdcard: locate NexusHD2-Gingerbread_V2.6T_WiFi-Calling_update_20110418.zip to finish the Android installation.(Required)
    Installation Guide for MAGLDR 1.13:
    1. Flash MAGLDR
      • Download MAGLDR 1.13 (606 KB)
      • Enter SPL by holding VOL DOWN key while booting the phone. (Make sure you have HSPL.)
      • Run ROMUpdateUtility.exe to flash MAGLDR 1.13 (magldr.nbh).
    2. Flash ClockworkMod Recovery
      • Download MAGLDR_CWM_Recovery_v3.0.2.4_for_NexusHD2_135M_rboot.zip (RAW boot partition) (4.17 MB) (Apr. 16)
      • Enter MAGLDR 1.13 by holding power key while booting the phone, and then select "USB Flasher" via "VolUp" and "VolDown". Confirm key is green "Call" button.
      • Run DAF.exe to flash ClockworkMod Recovery 3.0.2.4 (MAGLDR_recovery_3.0.2.4.img).
    3. Flash Android ROM

    Installation Guide for cLK 1.4:
    1. Flash cLK
    2. Flash ClockworkMod Recovery
      • Download cLK_1.4_CWM_Recovery_v3.0.2.4.zip (4.2 MB) (Apr. 13)
      • Enter fastboot mode by holding back key (left arrow) while booting the phone.
      • Run fastboot_install_recovery.bat to flash ClockworkMod Recovery 3.0.2.4 (cLK_1.4_recovery_3.0.2.4.img).
    3. Flash Android ROM

    NexusHD2-Gingerbread_V2.6T_WiFi-Calling_update_20110418.zip uses PPP by default and is compatible with cLK and MAGLDR.
    You can delete /system/ppp file to switch to RMNET mode in MAGLDR. (cLK doesn't support RMNET.)
    Apr 25: After installing new tytung_r9_wificalling_update.zip, your phone will be changed to RMNET mode.
    7
    I was thinking of posting a new thread but may be Tytung can update his first page.
    I searched everywhere and finally found a working solution.

    Credit goes to krunalkp in miuiandroid.com

    T-MOUSA Wifi calling For HD2 fully functioning with working MIUI V11.1, and
    NexusHD2-Gingerbread V2.7. Here is the exact steps that I used.

    Make sure you do a clean install for Nexus and then wifi calling.
    1. in CWM, Wipe Dalvik cache, wipe cache partition, wipe data/factory reset
    2. Install nexus, wifi calling

    May want to do the same for Miui.
    Always test installation on a fresh install.
    Also call T-mobile to sign up for the free wifi calling.

    1. For NexusHD2-Gingerbread V2.7 users.
    reflash Flash ClockworkMod Recovery following:
    Edit flash.cfg and change "system ya 135M" to "system ya 175M"
    Flash the following modified file. (this is modified so don't download any
    other version. )
    Modified pack for MIUI 1.5.20
    http://www.multiupload.com/NF1K78B1KP

    2. For HD2 NDT MIUI GINGER ROM V11.1
    http://forum.xda-developers.com/showthread.php?t=1010498
    reflash Flash ClockworkMod Recovery following:
    Edit flash.cfg and change "system ya 135M" to "system ya 175M"
    Flash the following modified file. (this is modified so don't download any
    other version. )
    Modified pack for MIUI 1.5.13
    http://www.multiupload.com/DKOQYZHUYH

    Finally i got T-mobile wifi calling for both my MIUI V11.1 and Nexus working...
    My miui apps ( music, file explorer, gallery etc ) are working... i don't see any problems
    at all.. and also wifi calling is working gr8... I can make and receive calls.
    I haven't tried other rom, but any rom with tytung's r10 update should work.
    You can probably mix and match both modified pack. I just happen to install them
    this way. Good luck everyone.

    I like using NexusHD2-Gingerbread V2.7 as it's more lean, faster and stable than the
    Miui V11.1. It also has build in VOIP dialer, so if tmobile wifi doesn't work, you can still
    call with it. Also Nexus has App2SD with apps install right onto my memory card. I don't
    need to perform another Ext4 partition.

    One more thing. Tmobile wifi calling seems to work on my prepaid card, as well as
    post paid plan with even more plus.

    thanks GOES TO TYTUNG FOR SUCH A GR8 JOB...

    Final update:
    Get the latest Sim card from Tmobile, then everything should work.
    6
    Well, the real problem is not PPP itself, but the ppp wrapper libhtc_ril_wrapper.so.

    The original rild.libpath property is /system/lib/libhtc_ril.so which supports RMNET only.

    But we need to set rild.libpath=/system/lib/libhtc_ril_wrapper.so for PPP.
    Code:
    # for PPP data connection
    rild.libpath=/system/lib/libhtc_ril_wrapper.so
    rild.libargs=-d /dev/smd0

    And we need to set rild.libpath=/system/lib/librilswitch.so for Wi-Fi Calling.
    Code:
    # T-Mobile Wi-Fi Calling #
    rild.libpath=/system/lib/librilswitch.so
    rilswitch.vendorlibpath=/system/lib/libhtc_ril.so
    rilswitch.ganlibpath=/system/lib/libganril.so
    ro.ril.enable.ganlite=1

    So they are conflict. We can only set rild.libpath to one value.

    Not sure if it will work, but you can try this:

    1) rename "libhtc_ril.so" to "libhtc_orig_ril.so"
    2) Right here (line 750), change "libhtc_ril.so" to "libhtc_orig_ril.so", compile the lib (i am noob at android development so don't really know how you guys compile shared objects..)
    3) rename libhtc_ril_wrapper.so to libhtc_ril.so
    4) change vendor ril to "libhtc_ril.so" (this is actually the ppp wrapper) and you can use rild.libpath as /system/lib/librilswitch.so

    I'm in hurry so maybe i was not clear, but i hope you understand what i meant.
    6
    Are you effin kidding me? Is this a work in progress or a test of something real?

    Will follow directions and report back.

    T Mobile USA Here!!

    THANKS!!

    A test of something real, but I cannot guarantee it will work.
    Some devs said that WiFi Calling is dependent on the radio firmware.
    Since our radio is designed for Windows Mobile 6.5, and it should not support WiFi Calling on WM.
    However, the test is still worth it.
    6
    I know what you said.
    But I don't think this name changing method will work.
    According to some posts below I refer to when I make WiFi Calling working for GB.
    http://forum.xda-developers.com/showpost.php?p=11643634&postcount=103
    http://forum.xda-developers.com/showpost.php?p=11744801&postcount=118

    Code:
    D/RILSWITCH(  129): Sending RIL_REQUEST_OEM_HOOK_RAW (GSM_AUTH) to vendor RIL
    RILSWITCH will send RIL_REQUEST_OEM_HOOK_RAW (GSM_AUTH) to vendor RIL directly.
    But the vendor RIL is now the ppp wrapper which cannot handle this request.

    Code:
    grep -i 'ril_request_oem' ./libhtc_ril_wrapper.c
    case RIL_REQUEST_OEM_HOOK_RAW: return "OEM_HOOK_RAW";
    case RIL_REQUEST_OEM_HOOK_STRINGS: return "OEM_HOOK_STRINGS";

    worth a try, it is just passing all the request to the original ril except for data requests which it manipulates, so it should do the job in theory.