3400f555fe
Add common function to give hotkey help
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* Key to dial and hangup
* Key to display wave form
2016-12-09 16:42:38 +01:00
d52d0242bf
Output enhancements
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* no more flicker on wave form display while scrolling
* dialing console gets cleared/overwritten correctly
* fixes on stderr output
2016-11-29 07:49:21 +01:00
b1c452cf12
Changed command line options
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* All lower case options define common options
* All upper case options define network specific options
2016-11-27 22:06:47 +01:00
0a83b19a99
common code: Display wave form in color
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Show 0-line as blue and curve as green and channel number as white.
2016-11-17 19:38:36 +01:00
2a4abc62b2
Move realtime scheduling and signal handling to common code
2016-11-13 06:37:56 +01:00
4dacec9ceb
A-Netz: Use Operator number 010 when calling from mobile station
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Also use no caller ID (NULL). The call control code processes the
caller ID and dialed number correctly.
2016-11-13 06:04:54 +01:00
6c1b6119ad
common code: Display multiple wave forms for each channel used
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Use 'w' key to enable/disable RX wave form display.
2016-10-31 19:16:47 +01:00
c1a02a5029
common code: Fix double free bug
2016-10-28 16:55:39 +02:00
1ea95de120
C-Netz: Use emphasis with 200 uS time constant
2016-10-23 08:46:05 +02:00
27938d111e
Added and fixed extra compiler warnings
2016-10-07 08:55:18 +02:00
0cec2f28be
Add check if fromat at PDEBUG() is consistent (like printf)
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The bugs it found are fixed too.
2016-10-07 07:52:17 +02:00
Andreas Eversberg
b205cfcf03
B-Netz: Work on pilot signal generation
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The pilot signal to switch to channel 19 can be:
* a tone
* a tone that is turned off (notone)
* positive amplitude
* negative amplitude
2016-10-03 14:56:15 +02:00
8d7c7f4425
callref: Move callref from 'sender' to individual implementation of a, b, c-netz
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Cellular networks use transaction instances, so callref is now member of
transaction object.
2016-10-02 09:06:03 +02:00
7d111546c4
Alsa: Keep 8 samples in input buffer to avoid reading corrupted samples
2016-08-13 15:19:12 +02:00
541eafe59e
Common code: Add call state debugging
2016-08-07 17:23:56 +02:00
362b1cbb61
Common code: Fix sound card reset
2016-08-07 17:22:24 +02:00
e69d74ac45
Send test tone towards mobile when no headphone sound device is selected
2016-08-03 12:03:55 +02:00
038ce9d1b7
Add info key 'i' to show some states.
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Currently showing C-Netz attached subscribers
2016-08-03 12:03:49 +02:00
f729b32745
C-Netz: Fixed multi-transceiver mode and show channel in various logs
2016-07-31 18:48:19 +02:00
0593f7d066
Fix typos
2016-07-24 12:31:09 +02:00
6a5af9aeac
Typos: acknowledgement -> acknowledgment signalling -> signaling
2016-07-24 12:31:08 +02:00
c273bbc5ff
Remove console line before printing debugging and on exit
2016-07-24 12:31:08 +02:00
5807a49f49
Release active call, when disconnect is received from network
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If early disconnect is received, the connecion is kept established, so the
announcement can be heared by mobile subscriber.
2016-07-24 12:31:08 +02:00
4745b29115
NMT: Caller ID support
2016-07-24 12:31:07 +02:00
b3b42e8bc4
Cleanup warnings at autoconfig files
2016-07-24 12:31:06 +02:00
e7fa08b6df
NMT / SMS: Short Message Service support
2016-07-09 15:16:16 +02:00
64c829909b
NMT / DMS: User data facility support (required for SMS)
2016-07-09 11:27:24 +02:00
62b3712ce5
common code: Check and ignore events without callref set
2016-07-09 11:27:02 +02:00
f39ee2f15a
common code: Add support for main loop handler
2016-07-09 11:27:02 +02:00
26ab26db48
minor fix at MNCC socket
2016-07-09 11:27:02 +02:00
f3fd01ebcd
ALSA code: Fixed corrupted sample at the end of a read
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The last sample may get corrupted. It seems that this depends on the
card that is used. To fix this, the snd_pcm_avail is checked and
one sample less than available is read using snd_pcm_readi. This
sample remains in RX buffer until next read. Then it is not corrupted.
2016-07-02 08:04:43 +02:00
2ee51022f4
Rename 'compander' to 'compandor'
2016-06-20 19:37:56 +02:00
d851c37eac
common code: Release MNCC call 30 seconds after listening to announcement
2016-06-19 17:46:56 +02:00
b45b0c6bac
common code: Minor fix in main loop
2016-06-19 17:43:48 +02:00
4d52f955b3
common code: Add processing interval option to decrese CPU usage
2016-06-18 19:33:08 +02:00
d2c4ca4fa9
Implementation of Advanced Mobile Phone Service (AMPS)
2016-06-17 17:03:29 +02:00
7d5d3da8d3
Add function to display wave form from input/loop
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Use 'w' to toggle display.
Move terminal input processing and main loop to main_common.c
2016-06-17 17:03:28 +02:00
1d20119d85
common code: Call control allows to re-dial after disconnect
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No hangup key required before that anymore.
2016-06-12 16:16:37 +02:00
7cfd11eb17
common code: Add feature to select debug category rather than showing all
2016-06-12 16:14:29 +02:00
4d22b11855
common code: Add debug #define for capture generated singal
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Used for fundamental debugging of encoded signal
2016-06-12 16:11:20 +02:00
7aa2445b47
Move amplitude (level) debugging to debug.c
2016-05-15 20:37:06 +02:00
27e8b03df5
Fixup typo on jitter code
2016-05-13 09:37:02 +02:00
42eefe90bf
common code: Fixed de-emphasis by adding high pass filter
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This high-pass filter filters out DC and frequencies below 300 Hz.
Now de-emphases will not cause low frequencies to saturate audio level
range or cause too high levels on low frequencies.
2016-05-13 09:37:02 +02:00
57ba648ac4
C-Netz: Add tiny database to track if phones are online
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Reject calls, if not online.
Use an interval to check if the phones are still online.
2016-05-08 15:53:00 +02:00
bae12156a2
common code: Add input gain option
2016-05-08 15:49:45 +02:00
7434e21dc2
Multi transceiver support
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This can be multiple transceivers on multiple sound cards.
Two transceivers can be bundled on one sound device as well, using both channels.
2016-05-08 15:48:13 +02:00
28e7f1e9d1
common code: Remove DC level before using Goertzel filter
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A DC level degrades the quality of the filtered result
2016-05-01 15:15:19 +02:00
0c99848120
common code: Make preemphasis 0 dB @ 1000 Hz
2016-05-01 15:14:57 +02:00
16acdbf59d
Implementation of C-Netz (German mobile telephone system)
2016-04-24 15:19:00 +02:00
4b3e3385b5
common code: Fix sample rate conversion
2016-04-24 15:18:59 +02:00
Andreas Eversberg
Andreas Eversberg