How to reach Customer Care with questions; Puerto Rico customers send written notices to a separate address
For questions or concerns the page does not address, customers can contact T-Mobile Customer Care online at T-Mobile.com, through the T-Life app, by calling 1-800-937-8997 or 611 from their device, or by writing to T-Mobile Customer Relations, P.O. Box 37380, Albuquerque, NM 87176-7380. Customers in Puerto Rico must send written notices to T-Mobile Customer Relations, B7 Tabonuco Street, Suite 700, Guaynabo, Puerto Rico 00968-3349, Attn: Customer Care Manager.
Supporting quotations
For questions or concerns not addressed here, please contact our Customer Care department at [www.T-Mobile.com](http://www.t-mobile.com/), through the T-Life app, by calling 1-800-937-8997 or 611 from your device, or by writing to: T-Mobile Customer Relations, P.O. Box 37380, Albuquerque, NM 87176-7380. Puerto Rico customers must direct written notices to: T-Mobile Customer Relations, B7 Tabonuco Street, Suite 700, Guaynabo, Puerto Rico 00968-3349, Attn: Customer Care Manager.
Qualifications & exceptions
Puerto Rico customers must use the Guaynabo address for written notices.
Account & Service Control · User right or choice
Customers may use any compatible GSM, 4G LTE or 5G device as long as it does not harm the network
T-Mobile customers may use any compatible GSM, 4G LTE or 5G device, such as a tablet or smartphone, to access the Broadband Internet Access Services, provided the device does not cause harm to T-Mobile's network. This freedom is qualified by T-Mobile's right to limit activations of compatible devices on older technologies while it moves its network to newer technologies (see the companion card).
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T-Mobile customers may use any compatible GSM, 4G LTE, or 5G device, such as a tablet or smartphone, to access our Broadband Internet Access Services, as long as they do not cause harm to our network.
T-Mobile may limit activations of compatible devices on older technologies as we transition our network to newer technologies.
Qualifications & exceptions
The device must be compatible and must not cause harm to the network.
T-Mobile may limit activations of compatible devices on older technologies during its network transition.
Not stated here
Compatibility criteria are on a linked network page not supplied here.
The FAQ question this answers is missing from the extracted text.
Account & Service Control · Restriction or exception
T-Mobile may limit activations of compatible devices on older technologies during its network transition
T-Mobile may limit activations of compatible devices on older technologies as it transitions its network to newer technologies. This is a limit on the general freedom to use any compatible device.
Supporting quotations
T-Mobile may limit activations of compatible devices on older technologies as we transition our network to newer technologies.
Qualifications & exceptions
Applies to compatible devices on older technologies, during the transition to newer technologies.
Not stated here
Which technologies count as older, and the timing of the transition, are not stated here.
Devices not bought from T-Mobile: no determination of call quality, performance or functionality
If a customer did not buy their device from T-Mobile, T-Mobile has not made any determination about the call quality, performance or other functionality that device provides. Customers bringing their own device therefore have no assurance from T-Mobile about how it will perform.
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If you did not purchase your device from T-Mobile, please be aware that T-Mobile has not made any determination as to the call quality, performance, or other functionality provided by the device.
Qualifications & exceptions
Applies to devices not purchased from T-Mobile.
Account & Service Control · Context
Spectrum bands and device attachment requirements are published on a linked network page, not supplied here
Details of the spectrum bands T-Mobile operates in and the requirements a device must meet to attach to T-Mobile's network are on a separate linked network page. Those details are not part of this source, so the compatibility criteria behind the device-choice answer cannot be described from it.
Supporting quotations
Find additional details on the spectrum bands T-Mobile operates in and on device requirements to attach to T-Mobile’s network
Not stated here
The linked network page with spectrum bands and device requirements is not supplied.
Customers may block certain sites or the whole Internet on individual lines, for example for child safety
Customers may choose to block the use of certain Internet sites, or the Internet generally, on individual lines, for example for child safety reasons. T-Mobile points to its Web Guard device content filter and Family Mode pages for consumer details, and tells business and government customers to use their service details or sales representative. This customer-chosen blocking is the kind of 'customer-chosen service' that the no-content-blocking statement carves out.
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Customers may block use of certain Internet sites or the Internet generally on individual lines, e.g., for child safety reasons.
or through your business or government service details or sales representative.
Qualifications & exceptions
Applies on individual lines, at the customer's choice.
Business and government customers get details through their service details or sales representative.
Not stated here
The Web Guard and Family Mode pages are not supplied; the exact tools, costs and age limits are not in this source.
The FAQ question this answers is missing from the extracted text.