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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * fcf.h - ITU T.30 fax control field definitions
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2003 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: t30_fcf.h,v 1.9 2006/10/24 13:45:28 steveu Exp $
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26 */
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27
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28 /*! \file */
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29
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30 #if !defined(_T30_FCF_H_)
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31 #define _T30_FCF_H_
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32
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33 /*! Initial identification messages */
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34 /*! From the called to the calling terminal. */
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35 #define T30_DIS 0x80 /*! Digital identification signal */
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36 #define T30_CSI 0x40 /*! Called subscriber identification */
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37 #define T30_NSF 0x20 /*! Non-standard facilities */
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38
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39 /*! Commands to send */
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40 /*! From a calling terminal wishing to be a receiver, to a called terminal
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41 which is capable of transmitting. */
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42 #define T30_DTC 0x81 /*! Digital transmit command */
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43 #define T30_CIG 0x41 /*! Calling subscriber identification */
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44 #define T30_NSC 0x21 /*! Non-standard facilities command */
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45 #define T30_PWD 0xC1 /*! Password */
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46 #define T30_SEP 0xA1 /*! Selective polling */
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47 #define T30_PSA 0x61 /*! Polled subaddress */
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48 #define T30_CIA 0xE1 /*! Calling subscriber internet address */
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49 #define T30_ISP 0x11 /*! Internet selective polling address */
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50
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51 /*! Commands to receive */
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52 /*! From a calling terminal wishing to be a transmitter, to a called terminal
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53 which is capable of receiving. */
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54 #define T30_DCS 0x82 /*! Digital command signal */
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55 #define T30_TSI 0x42 /*! Transmitting subscriber information */
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56 #define T30_NSS 0x22 /*! Non-standard facilities set-up */
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57 #define T30_SUB 0xC2 /*! Subaddress */
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58 #define T30_SID 0xA2 /*! Sender identification */
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59 /*! T30_TCF - Training check is a burst of 1.5s of zeros sent using the image modem */
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60 #define T30_CTC 0x12 /*! Continue to correct */
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61 #define T30_TSA 0x62 /*! Transmitting subscriber internet address */
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62 #define T30_IRA 0xE2 /*! Internet routing address */
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63
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64 /*! Pre-message response signals */
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65 /*! From the receiver to the transmitter. */
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66 #define T30_CFR 0x84 /*! Confirmation to receive */
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67 #define T30_FTT 0x44 /*! Failure to train */
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68 #define T30_CTR 0xC4 /*! Response for continue to correct */
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69 #define T30_CSA 0x24 /*! Called subscriber internet address */
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70
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71 /*! Post-message commands */
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72 #define T30_EOM 0x8E /*! End of message */
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73 #define T30_MPS 0x4E /*! Multipage signal */
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74 #define T30_EOP 0x2E /*! End of procedure */
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75 #define T30_PRI_EOM 0x9E /*! Procedure interrupt - end of procedure */
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76 #define T30_PRI_MPS 0x5E /*! Procedure interrupt - multipage signal */
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77 #define T30_PRI_EOP 0x3E /*! Procedure interrupt - end of procedure */
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78 #define T30_EOS 0x1E /*! End of selection */
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79 #define T30_PPS 0xBE /*! Partial page signal */
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80 #define T30_EOR 0xCE /*! End of retransmission */
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81 #define T30_RR 0x6E /*! Receiver ready */
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82
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83 /*! Post-message responses */
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84 #define T30_MCF 0x8C /*! Message confirmation */
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85 #define T30_RTP 0xCC /*! Retrain positive */
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86 #define T30_RTN 0x4C /*! Retrain negative */
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87 #define T30_PIP 0xAC /*! Procedure interrupt positive */
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88 #define T30_PIN 0x2C /*! Procedure interrupt negative */
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89 #define T30_PPR 0xBC /*! Partial page request */
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90 #define T30_RNR 0xEC /*! Receive not ready */
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91 #define T30_ERR 0x1C /*! Response for end of retransmission */
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92 #define T30_FDM 0xFC /*! File diagnostics message */
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93
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94 /*! Other line control signals */
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95 #define T30_DCN 0xFA /*! Disconnect */
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96 #define T30_CRP 0x1A /*! Command repeat */
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97 #define T30_FNV 0xCA /*! Field not valid */
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98 #define T30_TNR 0xEA /*! Transmit not ready */
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99 #define T30_TR 0x6A /*! Transmit ready */
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100 #define T30_PID 0x6C /*! Procedure interrupt disconnect */
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101
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102 /*! Something only use as a secondary value in error correcting mode */
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103 #define T30_NULL 0x00 /*! Nothing to say */
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104
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105 /*! Information frame types used for error correction mode, in T.4 */
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106 #define T4_FCD 0x06 /*! Facsimile coded data */
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107 #define T4_RCP 0x86 /*! Return to control for partial page */
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108
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109 #endif
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110 /*- End of file ------------------------------------------------------------*/
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