Specifications

Chapter 3 – Fax Class 2 Commands
Multi-Tech Systems, Inc. SocketModem MT5600SMI/MT5656SMI Reference Guide (S000306B) 88
Service Class 2 DCE Responses
The DCE sends information responses to the DTE as a facsimile session proceeds. They indicate the
state of the facsimile session and convey needed information. These messages are solicited messages
generated in execution of DTE action commands.
The DCE precedes and follows the information responses with <CR><LF>.
The DCE provides the on-line status of several session parameters when they are available during T.30
handshaking. These include the remote ID string and the DIS/DCS parameters. These responses report
the T.30 session parameter frames.
Command: +FCON Facsimile Connection Response
+FCON indicates connection with a fax machine. It is released by detection of HDLC flags in the first
received frame. +FCON is generated in response to an Originate or Answer command.
Command: +FDCS: Report Current Session Capabilities
Description: +FDCS:<string> reports the negotiated parameters. Phase C data will be
formatted as described by the subparameters. This message may be
generated in execution of +FDT or +FDR commands before the CONNECT
result code if new DCS frames are generated or received.
Syntax: +FDCS:VR,BR,WD,LN,DF,EC,BF,ST
Command: +FDIS: Report Remote Station Capabilities
Description: +FDIS:<string> reports remote facsimile station capabilities and intentions.
The parameters are provided in ASCII notation. This message is generated in
execution of Originate, Answer, +FDT, or +FDR commands.
Syntax: +FDIS:VR,BR,WD,LN,DF,EC,BF,ST
Command: +FCFR Indicate Confirmation to Receive
Description: The DCE sends a +FCFR response to the DTE upon reception of an
acceptable TCF training burst and a valid DCS signal from the remote
machine. This indicates that the DCE will receive Phase C data after the
remote station receives the local DCE's CFR message. The +FCFR message
is generated in execution of a +FDR command.
Syntax: +FCFR
Command: +FTSI: Report the Transmit Station ID
Description: This response reports the received transmit station ID string, if any. This
message is generated in execution of Originate, Answer, +FDT, or +FDR
commands.
Syntax: +FTSI: “<TSI ID string>” Transmit Station ID
Command: +FCSI: Report the Called Station ID
Description: This response reports the received called station ID string, if any. This
message is generated in execution of Originate, Answer, +FDT, or +FDR
commands.
Syntax: +FCSI: “<CSI ID string>” Called Station ID