T8C06:How is over the air access to Internet Radio Linking Project (IRLP) nodes accomplished?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T8C06 is By using Dual-Tone Multi-Frequency (DTMF) signals.
Use this action or method: By using Dual-Tone Multi-Frequency (DTMF) signals. It is the choice that directly completes the job described in the question.