2N BRI Lite/Enterprise v1.8 - Manual (Page 103)

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6.4 Status Messages
ISDN Layer 1 Message Status
ID Name Description
0 DEACT Deactivation – no signal received
1 ACTIVE Activation – full synchronisation achieved (frame,multiframe,crc)
2 SIGNAL Signal received – no synchronization
3 SYNC Signal received – only partial synchronization (frame)
ISDN Layer 2 Message Status
ID Name Name acc. to ITU–T Q.921
0 NOTEI TEI Unassigned
1 AWTEI Assigned Awaiting TEI
2 AWTEST Establish Awaiting TEI
3 OKTEI TEI Assigned
4 AWEST Awaiting Establishment
5 AWREL Awaiting Release
6 OKEST Multiple Frame Established
7 TIMREC Timer Recovery