Response to Question 7

0010-EX-PL-2006 Text Documents

AT&T; CORP.

2006-01-09ELS_74057

                                       Exhibit 3

Item 7

This application requests the grant of experimental authorization to enable AT&T Corp.
(AT&T) to engage in experiments to test RF equipment, RF propagation, new and
developing technologies, and enhancements to existing technologies and services. The
application proposes the use of a variety of modulation techniques and power levels in
the 3.5GHz band. Depending on the experiment in question, the tests may be conducted
in numerous and varied locations, and using resources from the multiple AT&T locations
in the States of Utah and New Mexico, thereby necessitating that the experimental license
be granted for statewide use.

Specific components of the testing are expected to include procedures to:
 1) Evaluate the performance of pre-WiMAX and WiMAX (IEEE 802.16) systems
       for point-to-multipoint configured services in line-of-sight and non-line-of-sight
       environments.
 2) Correlate the actual performance of various systems with predictive software-
       based algorithms using multiple trial base locations and remote sites to assess
       effects of propagation and interference.
 3) Assess the effectiveness of various technologies and designs in providing high
       speed data, Internet access, and voice services to typical customer locations.
 4) Evaluate the installation, provisioning, monitoring and maintenance of systems
       tested.

AT&T is constantly engaged in the process of developing and testing the suitability of
technologies for new services to ensure that innovative and competitive services can be
commercially deployed at the earliest time. In order to enable AT&T to engage in the
experimental testing required to bring new and innovative services to the public, AT&T
submits that grant of this application would serve the public interest, convenience, and
necessity.



Document Created: 2006-01-09 10:48:44
Document Modified: 2006-01-09 10:48:44

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