Response: AT&T NumberSync Announcement
Response: AT&T NumberSync
AT&T Announced a new app call NumberSync. It promises to allow you to use your telephone number of several devices. It has one big caveat. You can't use it over Wi-Fi. That pesky fly in the ointment T-mobile wasted no time saying their version would be better. Apple Inside compared this to Apple's continuity.
What is NumberSync
Per the AT&T Consumer Blog:
a service that will use the power of our network to link your compatible devices to your primary mobile number. This means in the future you’ll be able to send and receive texts, as well as make and receive calls, from your tablet or wearable using the same number that your family, friends and colleagues recognize. This will work when your smartphone isn’t with you, nearby or even powered on.
Because it is a network-based service, NumberSync won’t be limited to just one device or operating system. You’ll only need to check one voicemail box (assuming you have friends that still leave voicemails).
AT&T also listed several futures.
I had to scratch my head about the caveat that it doesn't work over Wi-Fi. From a technical perspective LTE is an IP only network. That means this app will work over IP. What requires a network enabled device but restricts it from being used over Wi-Fi? The only answer that makes sense is that AT&T can use a custom APN to provide access to a secure server. That server is only accessible via the custom APN. That is what would exclude Wi-Fi connectivity.
I use continuity on my iMac and I love it. This app is not continuity and my fear is that limiting NumberSync to a custom APN and AT&T only devices will limit adoption to the point that it never gets off the ground. I hope I am wrong.
Please read my DISCLAIMER as this NOT an AT&T sponsored post but my own description and opinions.