| T30_DIS |
Initial identification messages
From the called to the calling terminal. |
| T30_CSI |
[0000 0001] Digital identification signal |
| T30_NSF |
[0000 0010] Called subscriber identification |
| T30_DTC |
[0000 0100] Non-standard facilities
Commands to send
From a calling terminal wishing to be a receiver, to a called terminal which is capable of transmitting. |
| T30_CIG |
[1000 0001] Digital transmit command |
| T30_NSC |
[1000 0010] Calling subscriber identification |
| T30_PWD |
[1000 0100] Non-standard facilities command |
| T30_SEP |
[1000 0011] Password |
| T30_PSA |
[1000 0101] Selective polling |
| T30_CIA |
[1000 0110] Polled subaddress |
| T30_ISP |
[1000 0111] Calling subscriber internet address |
| T30_DCS |
[1000 1000] Internet selective polling address
Commands to receive
From a calling terminal wishing to be a transmitter, to a called terminal which is capable of receiving. |
| T30_TSI |
[X100 0001] Digital command signal |
| T30_NSS |
[X100 0010] Transmitting subscriber information |
| T30_SUB |
[X100 0100] Non-standard facilities set-up |
| T30_SID |
[X100 0011] Sub-address |
| T30_CTC |
[X100 0101] Sender identification
T30_TCF - Training check is a burst of 1.5s of zeros sent using the image modem |
| T30_TSA |
[X100 1000] Continue to correct |
| T30_IRA |
[X100 0110] Transmitting subscriber internet address |
| T30_CFR |
[X100 0111] Internet routing address
Pre-message response signals
From the receiver to the transmitter. |
| T30_FTT |
[X010 0001] Confirmation to receive |
| T30_CTR |
[X010 0010] Failure to train |
| T30_CSA |
[X010 0011] Response for continue to correct |
| T30_EOM |
[X010 0100] Called subscriber internet address
Post-message commands |
| T30_MPS |
[X111 0001] End of message |
| T30_EOP |
[X111 0010] Multipage signal |
| T30_PRI_EOM |
[X111 0100] End of procedure |
| T30_PRI_MPS |
[X111 1001] Procedure interrupt - end of procedure |
| T30_PRI_EOP |
[X111 1010] Procedure interrupt - multipage signal |
| T30_EOS |
[X111 1100] Procedure interrupt - end of procedure |
| T30_PPS |
[X111 1000] End of selection |
| T30_EOR |
[X111 1101] Partial page signal |
| T30_RR |
[X111 0011] End of retransmission |
| T30_MCF |
[X111 0110] Receiver ready
Post-message responses |
| T30_RTP |
[X011 0001] Message confirmation |
| T30_RTN |
[X011 0011] Retrain positive |
| T30_PIP |
[X011 0010] Retrain negative |
| T30_PIN |
[X011 0101] Procedure interrupt positive |
| T30_PPR |
[X011 0100] Procedure interrupt negative |
| T30_RNR |
[X011 1101] Partial page request |
| T30_ERR |
[X011 0111] Receive not ready |
| T30_FDM |
[X011 1000] Response for end of retransmission |
| T30_DCN |
[X011 1111] File diagnostics message
Other line control signals |
| T30_CRP |
[X101 1111] Disconnect |
| T30_FNV |
[X101 1000] Command repeat |
| T30_TNR |
[X101 0011] Field not valid |
| T30_TR |
[X101 0111] Transmitter not ready |
| T30_TK |
[X101 0110] Transmitter ready |
| T30_RK |
[1101 0010] Transmitter keys |
| T30_PSS |
[0101 0010] Receiver keys |
| T30_DES |
[1111 1000] Present signature signal (used only as FCF2) |
| T30_DEC |
[0000 0101] Digital extended signal |
| T30_DER |
[1100 1001] Digital extended command |
| T30_DTR |
[1100 1010] Digital extended request |
| T30_DNK |
[1000 1000] Digital turnaround request (conflicts with ISP) |
| T30_PID |
[X101 1001] Digital not acknowledge |
| T30_SPI |
[X011 0110] Procedure interrupt disconnect |
| T30_SPT |
[0000 1000] Security page indicator |
| T30_NULL |
[0000 0001] Security page type
Something only use as a secondary value in error correcting mode |
| T4_FCD |
[0000 0000] Nothing to say
Information frame types used for error correction mode, in T.4 |
| T4_RCP |
[0110 0000] Facsimile coded data |
