mscGsmBcFaxProtocolState 1.3.6.1.4.1.562.36.2.1.128.6.10.1.2

This attribute indicates the protocol state of the fax adaptor. The values are: setup, call setup state idle, idle state only transmitting Synchronize (SYNC) frames bcsRx, receiving Binary Coded Signal (BCS) packet from modem bcsTx, transmitting BCS packet to modem msgRx, receiving fax message from modem msgTx, transmitting fax message to modem