•Protocol: Layer 2 — Q921 (LAPD), Q.921-a, Q.921-b, LAPB, Layer 3 — Q931, Q.931-a, Q.931-b, X.25
•Bit select function: Arbitrary bit (bit 1 to bit 8) of each octet is extracted.
•Display method: Individual or simultaneous display of Layer 1, 2, 3, Japanese sequence/detailed translation display
•Storage capacity: RAM approx. 2 MB/ch, Disk Max. approx. 1 GB
•Time stamp: Resolution 1ms, Max. recording duration 127 days
•Search function: Time/frame/pattern/error
•Filter function: Layer 1 RR non-display, only specific Messages displayed
•Voice monitor function: A-law/u-law, 32k ADPCM/64k PCM by use of the 3.5 headset
•Statistic function: Error frame, total frame count