)
Values for CAPI v2.0 message command/subcommand:
Cmd/SubCmd	Name			Description
 01h/80h    ALERT_REQ		indicate compatibility with incoming calls
 01h/81h    ALERT_CONF		confirm receipt of ALERT_REQ
 02h/80h    CONNECT_REQ		establish B-channel connection
 02h/81h    CONNECT_CONF	confirm start of connection establishment
 02h/82h    CONNECT_IND		indication from CAPI of incoming connection
 02h/83h    CONNECT_RESP	accept incoming connection
 03h/82h    CONNECT_ACTIVE_IND	indication that B-channel connection complete
 03h/83h    CONNECT_ACTIVE_RESP	confirm connection-complete indication
 04h/80h    DISCONNECT_REQ	request shutdown of B-channel connection
 04h/81h    DISCONNECT_CONF	confirm shutdown of B-channel connection
 04h/82h    DISCONNECT_IND	indication that B-channel is shutting down
 04h/83h    DISCONNECT_RESP	confirm that application knows of shutdown
 05h/80h    LISTEN_REQ		enable signalling on incoming events
 05h/81h    LISTEN_CONF		confirm enabling of incoming event signalling
 08h/80h    INFO_REQ		send protocol information for physical connect
 08h/81h    INFO_CONF		confirm INFO_REQ
 08h/82h    INFO_IND		indicate event for physical connection
 08h/83h    INFO_CONF		confirm receipt of INFO_IND
 41h/80h    SELECT_B_PROTOCOL_REQ   change protocol on already-active connect
 41h/81h    SELECT_B_PROTOCOL_CONF  confirm receipt of SELECT_B_PROTOCOL_REQ
 80h/80h    FACILITY_REQ	control optional facilities
 80h/81h    FACILITY_CONF	confirm acceptance of FACILITY_REQ
 80h/82h    FACILITY_IND	indicate facility-dependent event
 80h/83h    FACILITY_RESP	confirm receipt of FACILITY_IND
 82h/80h    CONNECT_B3_REQ	establish Level 3 connection
 82h/81h    CONNECT_B3_CONF	confirm start of connection establishment
 82h/82h    CONNECT_B3_IND	indication of incoming Level 3 connection
 82h/83h    CONNECT_B3_RESP	accept incoming connection
 83h/82h    CONNECT_B3_ACTIVE_IND  indication that Level 3 connection complete
 83h/83h    CONNECT_B3_ACTIVE_RESP confirm connection-complete indication
 84h/80h    DISCONNECT_B3_REQ	request shutdown of Level 3 connection
 84h/81h    DISCONNECT_B3_CONF	confirm shutdown of Level 3 connection
 84h/82h    DISCONNECT_B3_IND	indication that Level 3 is shutting down
 84h/83h    DISCONNECT_B3_RESP	confirm that application knows of shutdown
 85h/80h    GET_B3_PARAMS_REQ	request Level 3 parameters
 85h/81h    GET_B3_PARAMS_CONF	return Level 3 parameters
 86h/80h    DATA_B3_REQ		send data on Level 3
 86h/81h    DATA_B3_CONF	confirm sending of Level 3 data
 86h/82h    DATA_B3_IND		indication of incoming Level 3 data
 86h/83h    DATA_B3_RESP	confirm receipt of Level 3 data
 87h/80h    RESET_B3_REQ	request resetting of a logical connection
 87h/81h    RESET_B3_CONF	confirm logical connection reset
 87h/82h    RESET_B3_IND	indication from CAPI that logical conn. reset
 87h/83h    RESET_B3_RESP	confirm receipt of RESET_B3_IND
 88h/82h    CONNECT_B3_T90_ACTIVE_IND  indicate switch from T.70 to T.90
 88h/83h    CONNECT_B3_T90_ACTIVE_RESP confirm receipt of T90_ACTIVE_IND
 FFh/80h    MANUFACTURER_REQ	vendor-specific request
 FFh/81h    MANUFACTURER_CONF	vendor-specific request confirmation
 FFh/82h    MANUFACTURER_IND	vendor-specific notification
 FFh/83h    MANUFACTURER_RESP	vendor-specific notification confirmation
SeeAlso: #04071,#04072