5bbbe11666
B-Netz: Rework on dialing start digit: New unknown type added
7 years ago
ce86f62b11
work on docs
7 years ago
b3b42e8bc4
Cleanup warnings at autoconfig files
7 years ago
a6bd841247
NMT: Various fixes for SMS support
7 years ago
3ef9ef88bd
B-Netz: Compiler switch to generate a dial sequence (for testing)
7 years ago
2137db0e01
NMT: Autoanswer for SMS/DMS calls
7 years ago
e7fa08b6df
NMT / SMS: Short Message Service support
7 years ago
64c829909b
NMT / DMS: User data facility support (required for SMS)
7 years ago
62b3712ce5
common code: Check and ignore events without callref set
7 years ago
f39ee2f15a
common code: Add support for main loop handler
7 years ago
26ab26db48
minor fix at MNCC socket
7 years ago
44ebf1616a
work on docs
7 years ago
ab9aba1a84
B-Netz: Reply the station ID correctly
...
It must be replied right after it has been received the first time.
It does not matter if this happens a bit later, even a second later.
Thanx to Hans Wigger for providing recording from his B-Netz tester to
figure this out.
7 years ago
54266a9937
Minor fixup to .gitignore: ignore test_compandor
7 years ago
f3fd01ebcd
ALSA code: Fixed corrupted sample at the end of a read
...
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.
7 years ago
4719be95bd
work on docs
7 years ago
2ee51022f4
Rename 'compander' to 'compandor'
7 years ago
86daa5a64a
AMPS: Add option to use the BUSY/IDLE bit on FOCC
7 years ago
76f6285846
AMPS: Show round trip delay of Filler frames in loopback mode
7 years ago
d851c37eac
common code: Release MNCC call 30 seconds after listening to announcement
7 years ago
b45b0c6bac
common code: Minor fix in main loop
7 years ago
f87e36fa47
AMPS: Detect difference between paging response and call response
...
Release call, if paging response was received, after call from fixed
network has already been released.
7 years ago
2b61a2ca4a
Work on docs
7 years ago
673aa74e6c
AMPS: Various minor fixes
7 years ago
4d52f955b3
common code: Add processing interval option to decrese CPU usage
7 years ago
e10898c1e8
C-Netz: Minor cosmetic fixes
7 years ago
d2c4ca4fa9
Implementation of Advanced Mobile Phone Service (AMPS)
7 years ago
7d5d3da8d3
Add function to display wave form from input/loop
...
Use 'w' to toggle display.
Move terminal input processing and main loop to main_common.c
7 years ago
4e0e13cb2d
work on docs
7 years ago
1d20119d85
common code: Call control allows to re-dial after disconnect
...
No hangup key required before that anymore.
7 years ago
7cfd11eb17
common code: Add feature to select debug category rather than showing all
7 years ago
051cc81b13
C-Netz: Move transaction routines to seperate file
7 years ago
26593ed034
NMT: fix minor bug
7 years ago
4d22b11855
common code: Add debug #define for capture generated singal
...
Used for fundamental debugging of encoded signal
7 years ago
c933250685
Add dsp mode change fuction to A and B Netz, fixed NMT
7 years ago
997f8eda43
B-Netz: Add timer for switching back from calling channel
...
The timer ensures that the paging sequence is sent out by sound card before
switching back to traffic channel
7 years ago
1ceb3026dd
Fixed link problem with alsa lib
...
Thanx to Martin for pointing to this problem.
7 years ago
90dbc0cbd7
C-Netz: Debug fixes
7 years ago
50136d7e8a
NMT: Typo in channel list
7 years ago
e9640c0cd8
C-Netz: Fix TX polarity selection
7 years ago
9ecb87f3e6
Fixing station ID command line parameter
7 years ago
7aa2445b47
Move amplitude (level) debugging to debug.c
7 years ago
adc3270dc0
Acknowledgements
7 years ago
60d9a7b496
C-Netz: Advice about requirement of emphasis done by software
7 years ago
c2cfce2373
wip: docs
7 years ago
46fa72894e
C-Netz: Calibration/fix processing of tone levels on TX and RX side
...
FSK and compander levels are adjusted.
Eliminate offsets between subsequent speech chunks. This is done by
high-pass filter. An offset is not passed to the filter.
Do correct audio processing chain:
time compress -> compressor -> scrambler / pre-emphasis -> TX
RX -> de-scrambler / de-emphasis -> expander -> time expand
7 years ago
5a9c9c7401
C-Netz: Send 5280 Hz test tone on idle speech channel
7 years ago
bbab972b51
NMT: Fixup paging on other channel
7 years ago
69ccdb99b5
NMT: Calibration of tone levels on TX and RX side
7 years ago
27e8b03df5
Fixup typo on jitter code
7 years ago
Andreas Eversberg