The Telecommunications Industry Association (TIA) TR-8.15 Engineering Committee on the Project 25 (P25) Common Air Interface (CAI) issued a special call for interest to producer, user and general interest groups to contribute to the development of industry standards.NGA Policy Academy Works with States on Governance, Interoperability
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“TIA-102.BAAA-B FDMA – Common Air Interface” ensures that subscriber unit equipment interoperates at the physical and data link layers with subscriber unit equipment from different manufacturers and with radio systems for different agencies. This allows effective and reliable intra-agency and interagency communications in an all-digital mode for voice and data.
“TIA-102.BAAC-D Common Air Interface Reserved Values” is a supplement to the TIA-102.BAAA CAI standard and describes the CAI reserved values that may be used by communications equipment conforming to TIA-102 LMR standards.