| Official Website： | https://www.att.com |
| Certification Type： | Compulsory |
| Certificate Validity： | No limit |
| Local Testing： | Required |
| Local Representative： | Not required |
| Marking Requirement： | 无 |
| Modular Approval： | Allowed |
AT&T, a U.S. based multinational conglomerate, is the nation's largest provider of fixed-line and mobile telecommunications services, as well as broadband and pay television services. A total of 150 million households were served, of which 85.1 million were wireless subscribers. The company is headquartered in downtown Dallas, Texas, USA.
AT&T certification test standard
TA Approval, the test content needs to be provided:
(1) FCC and PTCRB
(2) CTIA OTA and battery certification
(3) BT SIG test
(4) Laboratory test, the main test content is: #10776, testers include AT&T and authorized labs.
Field testing, which is designed to verify the interoperability, RF performance, and ease of use of a terminal in a commercial environment, is conducted by AT&T, authorized labs, and volunteers.#10776的测试用例分为Group A, Group C, Group D and Group E. If it's a new device or a new module, you need to execute all the use cases (A+C+D). If it's MR or EMR, you only need to execute the use case of Group C + Group D.
(5) Product Realization (PR) test, which mainly tests the use of AT&T's customized applications and services on the terminal, and the testers include AT&T and third-party application developers.
(6) AT&T All Access (AAA) test, AT&T All Access is an APP that monitors mobile phone traffic, which can be downloaded and used on a terminal or a personal computer. If the endpoint supports AAA, AT&T AAA interoperability testing is required. This test is performed by AT&T.
(7) Audio testing and AGPS Field Performance testing performed at Spirent/Metrico.