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  • 75. Re: WiFi Calling & WiFi Sharing

    I don't know all of the technical aspects, but my understanding is that the current solution utilized by Android devices uses many of the same network components as UMA, except that there is a different netowrk component than the UNC that "receives" the call into the GSM network.  Since the UNC, functionaing as a BSC, is not involved, handoff capability is not available.  IMS technology supposedly only uses the switch portion of the network, bypassing most other GSM network components, which then frees up those network components to better handle regular tower-based calls.  Also, since IMS uses the Session Initiation Protocol (SIP), there are future services that could be offered that simply cannot be offered over UMA.

     

    I have not heard whether T-Mobile intends to use VCC at some point in the future.  I do know that right now, handoff from tower to wi-fi, or wi-fi to tower will not be available when the IMS technology launches.

  • 76. Re: WiFi Calling & WiFi Sharing
    oryan_dunn

    It makes sense why T-Mobile would move to IMS, and once the SGS2 and Amaze are updated, will have feature parity with their other Android phones.  It just kinda stinks that from the end-user perspective, WiFi calling has regressed in features, since I've had the pleasure of using UMA on my Blackberry Pearl 8120 and my Curve 8520.

     

    I would hope that VCC would be in the cards for T-Mobile in the future.  If not, the whole exercise of moving to IMS from UMA seems kinda silly.

     

    What other features does T-Mobile intend to use of IMS?  Reading the tech articles on IMS, they all kinda read like dry tech specs, and don't really spell out what IMS really gets you/the carrier.

  • 77. Re: WiFi Calling & WiFi Sharing

    I don't know of any specific features at this time.  It was probably more of a jump to the other technology so T-Mobile is ready to deploy new features and to get manufacturers to start supporting the new technology so customers who purchase new phones now can use the new features as they roll out, rather than having to upgrade again later to use the new features.  As a long-time BlackBerry UMA user who just converted to Android last year when wi-fi calling became available on that platform, I understand the concern around lack of handoff, but I personally haven't found it to be a big issue.  While I do occasionally want or need to continue a call, that I started at home, once in my car, I have learned to just let the person know I will call them right back because I'm leaving the house and the call will drop.  I know this won't work for everyone, but for me, it's better than not having any coverage in my home at the edge of the coverage area.

  • 78. Re: WiFi Calling & WiFi Sharing

    dedmund speaks the truth - the T-Mobile move to SIP/IMS and the new SIM cards that support this new flavor of wifi calling is tied to more advanced and efficient technology as compared to current UMA/GAN, which provides more call capacity and also supports the evolution of future services over wifi. 

     

    of course, those future services are TBA.  

  • 79. Re: WiFi Calling & WiFi Sharing
    oryan_dunn

    Just having WiFi calling would be nice, even without handoff.  When at home, I'd like handoff, but when overseas, lack of handoff is a feature, since I couldn't start a call on free WiFi, then move to $3.60/min call on cell network (cough India roaming cough).

  • 80. Re: WiFi Calling & WiFi Sharing

    it's coming in the near future, we just dont have a firm date locked down yet.  stay tuned

  • 81. Re: WiFi Calling & WiFi Sharing
    nearmsp

    For me, if there is no Wi-Fi only calling, then I see no difference between T-mobile and other companies. I have used BBs for years now for the UMA feature. I did not go for the iphone 4 for this very reason. I have been waiting patiently to buy the SGS2 when Wi-Fi calling comes. If it is confirmed that Wi-Fi only calling does not work of SGS2/T-mobile, then sadly I will be looking at other options.

  • 82. Re: WiFi Calling & WiFi Sharing
    nearmsp

    I thought November 13th was announced as "the" date. Was that information incorrect?

  • 83. Re: WiFi Calling & WiFi Sharing

    it WILL work on the Galaxy S II, but is not quite there.  Software update is in the works.  Near future.

  • 84. Re: WiFi Calling & WiFi Sharing

    nearmsp wrote:

     

    For me, if there is no Wi-Fi only calling, then I see no difference between T-mobile and other companies. I have used BBs for years now for the UMA feature. I did not go for the iphone 4 for this very reason. I have been waiting patiently to buy the SGS2 when Wi-Fi calling comes. If it is confirmed that Wi-Fi only calling does not work of SGS2/T-mobile, then sadly I will be looking at other options.

    What do you mean by "Wi-Fi only" calling?  The SGS2 is going to support Wi-Fi calling.  It's just a matter of waiting until the IMS supported wi-fi calling software is available for the device through a software update/maintenance release.  The phone is going to support 4G/3G/2G and Wi-Fi calling.

  • 85. Re: WiFi Calling & WiFi Sharing

    It was mistakenly announced by one source and then immediately retracted, but some folks had already run with it by then.  A retraction was sent out immediately after but as you can see at least a couple of people stated 11/13 and it's still assumed to be correct if they haven't read any of the updates since then. 

     

    Short answer is that it is coming in the near future, not going to be a long wait.  However no specific date has been communicated yet. 

  • 86. Re: WiFi Calling & WiFi Sharing

    nearmsp wrote:

     

    I thought November 13th was announced as "the" date. Was that information incorrect?

    This was never a date officially released by T-Mobile.  it was published on Tmonews.com and is pure heresay until something official is released by T-Mobile.  The network is there.  We are just waiting until the software is available for the phones and I am not aware of any specific dates yet.  I am hoping it comes soon, though, as I think it's exciting to be able to offer this feature on this great phone and am, myself, waiting to upgrade to this device once Wi-Fi calling is available.  Until then, I'm sticking with my MyTouch 4G.

  • 87. Re: WiFi Calling & WiFi Sharing

    It appears that the new myTouch by LG and the myTouch Q are the first two phones to launch with support for the new IMS based Wi-Fi calling.  Other devices already launched will still need to get a maintenance release to support this.  You must also be sure to activate the new SIM that came in the kit, as only new GBA SIM cards will support the IMS Wi-Fi calling.  You can identify these SIMs by looking for TM9177 printed on them.  Finally, you must have an E911 address set up on the line that is going to use the Wi-Fi calling.  You can do this without having to call in by logging in to your account at http://www.t-mobile.com, then selct "Your Profile" near the top of the page and selct "Customer Info" from the drop-down that appears.  Enter your E911 address, then save changes.  Unlike UMA or the "old" Android Wi-Fi calling application, the new IMS based Wi-Fi calling will NOT work without an E911 address.  If you try to place a call without one, you will get an error message on the device telling you that you need to add an E911 address to your line.

  • 88. Re: WiFi Calling & WiFi Sharing

    joel wrote:

     

    It was mistakenly announced by one source and then immediately retracted, but some folks had already run with it by then.  A retraction was sent out immediately after but as you can see at least a couple of people stated 11/13 and it's still assumed to be correct if they haven't read any of the updates since then. 

     

    Short answer is that it is coming in the near future, not going to be a long wait.  However no specific date has been communicated yet.

    I was one of many who were duped into believing this phone would be capable of Wi-Fi Calling out of the box.

    These departments all assured me it was available at the time of purchase but in the end, they were all wrong. A memo from Samsung confirmed them to be all wrong.

     

    • T-Mobile Phone Sales
    • T-Mobile Live Chat
    • T-Mobile Tech Support Tier 1
    • T-Mobile Tech Support Tier 2
    • T-Mobile Buyer's Remorse
    • T-Mobile Customer Loyalty

     

     

    As a temporary solution (since I sold my HTC Sensations) was to offer me Data & Text only plan for $40 that is usually reserved for the hearing impaired. I said I would sleep on it anc call back if I wanted to accept the offer. I attempted to make SMS/MMS texts over Wi-Fi just to be sure it would work and it does not so that would not be a viable option. I've been with TMO since 2007 for the main reason being WiFi Calling/Texting (95% of usage) due to no cell towers in our area and none are going to be installed according to TMO survey team. There next solution was to offer me to drive 60miles to nearest corporate store to pickup loaner phones, which dont have WiFi calling, so that was not a viable solution. The next solution was to return the Galaxy SII's and rebuy HTC Sensations. The reason I was granted the override to purchase the Galaxy SII's was due to the hardware design flaw in the WiFi antenna of the HTC Sensation. The next solution was to lower my rate plan to less minutes since I would not be using hardly any minutes on WiFi or Mobile Network. Honestly, I still feel like I am being ripped off. I am paying $80/line x 2 for 5% service usgage. I said I would accept for the first month, but that if the update is not released 11/13/2011, then I am witholding payment (except 5% or $8) for those two lines until said update is released. I understand its new technology and needs time to be implimented, but I am not going to keep feeding TMO $160/mo for 5% service. $8 is about all they will get out of me until situation is resolved.

  • 89. Re: WiFi Calling & WiFi Sharing
    gandecab

    you had 14 days (20 days if bought online?) to return the phone.  since you use wifi calling 95% of the time, you should have returned it day 1.  seems like TMO has been very generous with you, good luck getting any sympathy by not paying your bill.

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