Signaling

When the line type is inband---for channelized T1---the type of inband signaling protocol in use:

r2generic

Generic R2 signaling for E1 lines---similar to multifrequency R2 (MFR2), but without tone signaling.

mfr2

One of several multifrequency R2 signaling profiles for E1 lines.

norbs

Protocol for IMT lines that supports all switch types except 1A (E1 default).

rbs

Protocol for IMT lines that supports robbed bit signaling. Use this protocol only if the IMT is connected to a 1A switch.