RRQ, ARQ, DRQ, and IRR are all examples of ________ signaling messages.
A. H.225.0 RAS
B. Q.931
C. H.239
D. H.245
E. H.248
RRQ, ARQ, DRQ, and IRR are all examples of ________ signaling messages.
A. H.225.0 RAS
B. Q.931
C. H.239
D. H.245
E. H.248