ISDN ANALYZER D1080 - messkom.de

USER’S MANUAL REV. 5 ISDN ANALYZER D1080
Figura 15-2
The Q bit identifies the transmitted packet as either data or
commands. The M bit indicates that the packet is the prosecution
of a previously transmitted packet. The bit D indicates that the
transmitted packet is acknowledged by the network or by the
remote DTE.
The instrument indicates the disconnection cause of active calls.
Two pages contain statistical data about the transmitted and
received frames, indicating the invalid frames received and the
frames with HDLC errors.
CHAPTER 15. X.25 TERMINAL SIMULATOR 171