A phone sends a "message 1" to the tower to get its attention.

This "RAR" is what allows the phone to synchronize its timing and start downloading data. A file named "RNTG.rar" might be a capture of these specific network signaling packets.

Summary. This gene encodes a retinoic acid receptor that belongs to the nuclear hormone receptor family. Retinoic acid receptors ( National Institutes of Health (.gov)

5916 - Gene ResultRARG retinoic acid receptor gamma [ (human)]

The tower replies with a RAR message, which includes a temporary ID called a TC-RNTI (Temporary Cell Radio Network Temporary Identifier).