[oldhifi]

Does the Leap work on TMobile? If not what Blackberrys work on tis network? I need wi fi calling, since I have very weak signal.

[dhs1000]

If it works on ATT and is unlocked, a TM sim will work. This assumes TM has service in your area.

DHS

[propayne71]

Wifi calling through T-Mobile won't work because it's not a T-Mobile branded device.

Other than that, I'm using my Leap on T-Mobile and all features work (LTE, HSPA+, etc.)

[jmastrol]

And to the OPs original question:

Check out the Blackberry Leap specifications and you will find the following for North America:
North America
FD-LTE: 1, 2, 4, 5, 7, 13, 17 (2100/1900/AWS/850/2600/700 MHz)
HSPA+ 1, 2, 4, 5/6 (2100/1900/AWS/850 MHz)
Dual Carrier 42 HSPA support
Quad Band GSM/GPRS/EDGE 2, 3, 5, 8 (1900,1800,850,900 MHz)

T-Mobile in North America uses:
LTE bands 2, 4, and 12.
3G(UTMS), 3.5G(HSPA+) bands 1700 and 1900

So, LTE, HSPA+, and EDGE all work just fine, as mentioned by another poster in this thread. If you live outside the US of A the following applies:

Europe, Middle East, Africa and Asia-Pacific
FD-LTE: 1, 3, 7, 8, 20 (2100/1800/2600/900/800 MHz)
HSPA+ 1, 2, 5/6, 8 (2100/1900/850/900 MHz)
Dual Carrier 42 HSPA support
Quad Band GSM/GPRS/EDGE 2, 3, 5, 8 (1900,1800,850,900 MHz)

You can match up the appropriate carrier frequency with those if you need to. Sources are plentiful.

:-)

Regards.

[Jim Wolfson]

Wifi calling through T-Mobile won't work because it's not a T-Mobile branded device.

Other than that, I'm using my Leap on T-Mobile and all features work (LTE, HSPA+, etc.)

My factory-purchased unlocked Z10 works fine on T-Mobile and supports WiFi Calling running on Ting under 10.2.1, which uses the T-Mo network. Unless it's a Leap-specific issue, the Leap should support it as well if the Leap supports OS 10.2.

[mahgnal]

I'm on T-Mobile in OKC and only getting 4G today first day with Leap

Posted via CB10

[mahgnal]

How strange. After two hours in same areas it just now updated to LTE

Posted via CB10

[msnguy81]

I power cycled my Leap after inserting my SIM and 4G showed up after doing so on my T-Mobile service

[Soapm]

How do you know if you're using VoIP?

I get 4G LTE, is that the same?

[dubbsix]

Yep I'm using my leap on tmobile with lte

Posted via CB10

[Sarah Goodfriend]

My T-Mobile store says that my blackberry leap won t .read the aim card been to T-Mobile several times .please if you have an idea let me thanks

[Chuck Finley69]

My T-Mobile store says that my blackberry leap won t .read the aim card been to T-Mobile several times .please if you have an idea let me thanks

Did for me about 2 1/2-3 years ago without problems when I tested service. Did it stop functioning recently?