Appendix A: Loop Status Messages

Register SPID #1

The Express XL/XLT’s ISDN layer 1 and 2 is up and is now registering SPID 2 with the ISDN network.

RINGING

An incoming call is ringing.

B1 and B2 Bearer Channel Status Messages

56K

Connected at 56K call type.

64K

Connected at 64K call type.

Audio

Connected at audio call type.

Dialing

Dialing out.

Holding

Connection is on hold.

Idle

No call up.

Speech

Connected at speech call type.

Release

Call being hung up.

Retriv

Held call being retrieved.

Ringing

Incoming call.

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ADTRAN 1200070L2, 1200070L1 user manual B1 and B2 Bearer Channel Status Messages