dahdi_tools 分析（六）fxstest

本文介绍: dahdi _tools 分析（六）fxstestusa g eUsa g e: fxstest <dahdi device&g t; <cmd&g t; where cmd i s on e of: stats – reports voltag es reg dump – dumps ProSLIC registers t on es – plays a series of t on es polar i t y – tests polar ity re v

dah di _tools 分析（六）fxstest

usa g e

Usage: fxstest <dahdi device> <cmd>
       where cmd is one of:
       stats - reports voltages
       regdump - dumps ProSLIC registers
       tones - plays a series of tones
       polarity - tests polarity reversal
       ring - rings phone
       vmwi - toggles VMWI LED lamp
       hvdc - toggles VMWI HV lamp
       neon - toggles VMWI NEON lamp
       dtmf <sequence> [<duration>]- Send a sequence of dtmf tones ("-" denotes no tone)
       dtmfcid - create a dtmf cid spill without polarity reversal

实测

fxstest 1 stats 查看线路电压

root@localhost:/# ./fxstest 1 stats
TIP: 49.0000 Volts
RING:  0.0000 Volts
VBAT: 49.0000 Volts

fxstest 1 reg dump

# ./fxstest 1 regdump
Direct registers: 
  0. 60    1. d5    2. 35    3. c0    4. b8    5. ea    6. f9    7. c6  
  8. 02    9. 00   10. 00   11. 00   12. 50   13. f2   14. ee   15. c6  
 16. 38   17. ec   18. 41   19. c7   20. 81   21. 00   22. 00   23. 00  
 24. b8   25. ea   26. f9   27. c6   28. 00   29. 00   30. 00   31. 00  
 32. 80   33. b9   34. 35   35. c0   36. 5d   37. 41   38. 87   39. 9a  
 40. ff   41. fe   42. fe   43. fe   44. a4   45. 87   46. 07   47. bf  
 48. 2c   49. 63   50. c9   51. c0   52. 00   53. f4   54. 97   55. c6  
 56. f8   57. ef   58. f9   59. c6   60. 00   61. 70   62. 44   63. 07  
 64. b0   65. d9   66. 33   67. c0   68. 30   69. 0c   70. b0   71. c6  
 72. 00   73. 04   74. 00   75. 00   76. 02   77. 00   78. 00   79. 00  
 80. 00   81. 08   82. 00   83. 00   84. 00   85. 00   86. 00   87. 00  
 88. 00   89. c8   90. 92   91. c6   92. 36   93. 00   94. 00   95. 00  
 96. a0   97. 93   98. 06   99. bf  100. 00  101. e0  102. 4b  103. c6  
104. d0  105. 8c  106. 06  107. bf  108. 30  

Indirect registers: 
  0. c6b0    1. 0000    2. 0000    3. 0000    4. c648    5. 808c  
  6. bf16    7. 0000    8. 0000    9. ac10   10. bf06   11. 0000  
 12. 0000   13. e49c   14. c035   15. 0000   16. 0000   17. 0000  
 18. 0000   19. 0000   20. 0000   21. 00fe   22. 0000   23. 0000  
 24. c648   25. fafc   26. beda   27. da26   28. 4004   29. 0000  
 30. 0000   31. 0000   32. c656   33. 0036   34. 0000   35. 0000  
 36. 0000   37. 17f4   38. bf07   39. 0000   40. 0000   41. aa54  
 42. c050   43. 9000   44. c799   45. 0002   46. 0000   47. eff8  
 48. c6f9   49. f250   50. c6ee   51. da3d   52. 8140   53. 0c30  
 54. c6b0   55. fb7c   56. beda   57. 0000   58. c648   59. 0000  
 60. c648   61. 0000   62. c656   63. 0036   64. 0000   65. f100  
 66. bf06   67. f000   68. ffff   69. 1204   70. c020   71. 0000  
 72. c656   73. 0142   74. 0000   75. 0000   76. 0000   77. 0ed8  
 78. c036   79. f250   80. c6ee   81. e990   82. c741   83. 0f34  
 84. 102b   85. 0007   86. 0000   87. 901b   88. c799   89. 0ff0  
 90. 0000   91. 0000   92. 0000   93. 2bb0   94. c757   95. eff8  
 96. c6f9   97. 0101   98. 0000   99. 0002  100. 0000  101. 02f2  
102. 0000  103. 0000  104. 0000

显示所有寄存器的值

fxs 1 tones

plays a series of tones

播放一组信号音—-拨号音，忙音等。
fxs 1 ring

fxs 1 dt mfcid

./fxstest 8 dtmfcid
Going to send a set of DTMF tones >A5551212C<[156775.876836] ioctl:    Start OnHookTrans, card 7
  
Phone is ringing
Ringing Done

发送振铃和DTMF 格式的CID

分析

主要分析 dtmfcid ，代码如下

在这里插入图片描述

发送的CID 为5551212，须先用 A C 包裹起来，即 A5551212C ，参考 https://what–when–how.com/vo ip/dtmf-based-caller-id–vo ip/
将字符转成 DTMF 音频发送出去
以 50ms , 50ms 的间隔频率发送
发完 DTMF CID 后再开始振铃