WIFI Calling IssueSupport


  1. LunchBB

    LunchBB Well-Known Member

    Sorry if it has been covered. My MT4G WIFI calling sound quality is horrible. It's choppy just like talking in bad reception area.

    My friend's MT4G is even worst. It always turn off automatically by itself. He tried different settings too. Also, when he came home where his home has poor to no Tmo reception, WIFI never turn on automatically.

    Any idea?

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  2. UMAuser

    UMAuser New Member

    Try turning off Bluetooth. It worked great for me.
  3. LunchBB

    LunchBB Well-Known Member

    I tried that. BT was off
  4. carmendiva

    carmendiva Well-Known Member

    I absolutely hate the wi-fi calling feature on my mytouch 4g

    It's decent when you have no signal but it does not work at all how it was advertised

    and the mytouch 4g has such a low wi-fi signal
    I am in the room right next to where my router is located
    and if i barely touch the left hand corner, it loses reception(mind u i am one room over)

    However, if i am in the same room...of course it works perfectly and the wi-fi calling works flawlessly
  5. raincity

    raincity Member

    I too have been disappointed with the extremely poor quality of WiFi calling on the Mytouch 4G. I even went so far as to buy a new high-end router and set my phone's wireless connection for the highest priority QOS thinking it might resolve the problem. Bluetooth is a requirement for me and unfortunately the new router didn't make much of a difference in call quality. After two firmware upgrades to the phone in the past year I couldn't believe that the problems discussed here hadn't been resolved.

    After doing some investigation online I discovered that severe interference between Bluetooth and 2.4 gig Wifi (802.11g) can be a problem on many devices. It seems the Mytouch 4g is especially prone to such issues.

    The solution was switching the phone to the 5 gig Wifi band (802.11a). The MT4G specs don't include this capability in most reviews and product sheets. It also doesn't show up on either the T-Mobile or HTC web page, but the phone works great on that band. For the first time I'm able to use the Wifi calling feature with my Bluetooth headset. Call quality has been just fine.
  6. LunchBB

    LunchBB Well-Known Member

    I'm not a WIFI expert but I think 802.11a is a very old standard. There are 11b, 11g, and 11n is the latest one. It is not necessary 11a be the solution. You only need to get any wifi router that broadcast in 5.8ghz frequency. My current Linksys router support both 2.4ghz and 5.8ghz.
  7. raincity

    raincity Member

    I too have been disappointed with the extremely poor quality of WiFi calling on the Mytouch 4G. I even went so far as to buy a new high-end router and set my phone's wireless connection for the highest priority QOS thinking it might resolve the problem. Bluetooth is a requirement for me and unfortunately the new router didn't make much of a difference in call quality. After two firmware upgrades to the phone in the past year I couldn't believe that the problems discussed here hadn't been resolved.

    Apparently something HAS been changed in the latest firmware. Wifi calling now works fine and so does my Bluetooth headset. I've found various articles online that discuss the severe interference that can occur between Bluetooth and 2.4 gig Wifi (802.11g). It seems the Mytouch 4g is especially prone to such issues. The solution for getting the headset to work was switching the phone to the 5 gig Wifi band (802.11a). The MT4G specs don't include this capability anywhere I've found including either the T-Mobile or HTC web page, but the phone works great on that band. For the first time I'm able to use the Wifi calling feature with my Bluetooth headset. Call quality has been just fine.
  8. jrizal

    jrizal Active Member

    It may be old but much less devices uses the 5.8ghz frequency/bandwidth making it much better than b/g/n/
  9. jimiki

    jimiki New Member

    Try NetTalk app, it cannot receive calls, but at least you may learn something. Sounds like your internet is slow. How does it preform on another wifi?

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