williamp/osmocom-analog
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595fd845e060d0cdd9e469383d57531041aae1d4
Commit Graph

54 Commits

Author SHA1 Message Date
Andreas Eversberg
595fd845e0 NMT: Removed double implementation of caller ID encoding 2017-10-12 19:46:32 +02:00
Andreas Eversberg
534411d660 New common FSK implementation, replaces all individual implementations 2017-08-09 17:27:13 +02:00
Andreas Eversberg
8ce3ff455d Add incoming answer to call control, also allow to send recall tone 2017-08-09 17:27:08 +02:00
Andreas Eversberg
7c9ce960d7 Fixes of checking digits 2017-08-08 12:54:21 +02:00
Andreas Eversberg
6c64025717 Move FFSK modem from NMT to common code, so it can be used by other networks 2017-08-08 12:53:34 +02:00
Andreas Eversberg
3274812eab NMT-900 System implementation 
NMT can now be run as 450 or 900 Network.
 2017-08-08 12:52:45 +02:00
Andreas Eversberg
0c9de251be NMT: Implement Hagelbarger Code 
This will correct burst errors of received messages. If the message
is too corrupted, it will be ignored, because some element may not
match then. The digits and line signals are checked for consistency,
since they are repeated serveral times in a message.
 2017-08-08 12:52:29 +02:00
Andreas Eversberg
538b4a42ec Add wave file playback to replace TX audio 2017-07-15 07:38:16 +02:00
Andreas Eversberg
3774519631 NMT: Fixed "use after free" bug 2017-07-15 07:38:13 +02:00
Andreas Eversberg
7a9762e28e NMT: Disable Supervisory signal during DMS (SMS) transfer and use Timeout 
There is no Supervisory signal during DMS transfer, so there must be
no timeout for Supervisory signal. Instead, the SMS layer will timeout
after some seconds without receiving data.
 2017-06-11 08:13:52 +02:00
Andreas Eversberg
50b2021d21 NMT 450: Support for other European counties, like Belgium, Czech, Slovakia 2017-06-10 13:08:51 +02:00
Andreas Eversberg
e653475ff7 NMT: Allow NULL (B'0000') to be used as country selector in traffic area 2017-06-10 13:08:23 +02:00
Andreas Eversberg
6adfcf7466 Status display 
Alows to show status of current channels and users
 2017-06-10 13:08:21 +02:00
Andreas Eversberg
4d10ee7c82 No "sdr" audio device option required anymore (when using SDR) 2017-05-17 20:06:42 +02:00
Andreas Eversberg
0611f62b52 Show channel number and basic info when channel was created 2017-02-18 21:02:47 +01:00
Andreas Eversberg
7e45f556ce Correcting all levels and move all remaining integer samples to sample_t 
The leves are based on the standards of each mobile network. They
are adjusted to the specified frequency deviation now.
 2017-02-18 21:01:13 +01:00
Andreas Eversberg
7ea3bc188d Move samples of int16_t format to sample_t, that is of type double 
This prepares the correction of all levels
 2017-02-18 21:01:08 +01:00
Andreas Eversberg
8b9277615d Neu structure for the paging process (B-Netz) 
Paging tones are not created within sound_alsa.c
The audio API is now responsible to switch to paging channel.
In case of SDR, the sdr.c will switch frequency offset.
 2017-02-18 21:00:50 +01:00
Andreas Eversberg
9ff8c3bb25 Rework on audio interface 
Sound instance is now called audio instance and uses funcation pointers.
This gives a clean interface to be exchanged with other technologies,
linke SDR.
 2017-02-18 21:00:45 +01:00
Andreas Eversberg
d54d3ac265 prepare audio handling for multi carrier SDR 2017-01-07 06:28:24 +01:00
Andreas Eversberg
b1c452cf12 Changed command line options 
* All lower case options define common options
* All upper case options define network specific options
 2016-11-27 22:06:47 +01:00
Andreas Eversberg
27938d111e Added and fixed extra compiler warnings 2016-10-07 08:55:18 +02:00
Andreas Eversberg
b205cfcf03 B-Netz: Work on pilot signal generation 
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
Andreas Eversberg
4c1c8eb6fb NMT: Fix on paging retry 2016-08-28 15:29:13 +02:00
Andreas Eversberg
8cecf13b1a NMT: Add transaction handling 2016-08-20 09:57:05 +02:00
Andreas Eversberg
55229a397c NMT: Fix, stop ringing timer at answer 2016-08-03 12:03:52 +02:00
Andreas Eversberg
28ae3e300f NMT: Fixed multi-transceiver mode and show channel in various logs 2016-08-03 12:03:51 +02:00
Andreas Eversberg
038ce9d1b7 Add info key 'i' to show some states. 
Currently showing C-Netz attached subscribers
 2016-08-03 12:03:49 +02:00
Andreas Eversberg
cc8631d4f9 NMT: Give warning of missing channel type AFTER creating all channels 2016-07-31 18:48:20 +02:00
Andreas Eversberg
eb8a22e2c2 NMT: Fix SMS deliver output message 2016-07-31 14:49:43 +02:00
Andreas Eversberg
0593f7d066 Fix typos 2016-07-24 12:31:09 +02:00
Andreas Eversberg
6a5af9aeac Typos: acknowledgement -> acknowledgment signalling -> signaling 2016-07-24 12:31:08 +02:00
Andreas Eversberg
123979a0f3 NMT: Minor fix at debug output 2016-07-24 12:31:08 +02:00
Andreas Eversberg
8741833948 NMT: Change 'index' of message to 'mt' (message type) 2016-07-24 12:31:08 +02:00
Andreas Eversberg
5807a49f49 Release active call, when disconnect is received from network 
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
Andreas Eversberg
4745b29115 NMT: Caller ID support 2016-07-24 12:31:07 +02:00
Andreas Eversberg
ba8bf0e9d5 NMT: Fix autoanswer 
If phone does not support autoanswer, the MTX proceeds with regular ringing.
 2016-07-24 12:31:07 +02:00
Andreas Eversberg
a6bd841247 NMT: Various fixes for SMS support 2016-07-24 12:31:05 +02:00
Andreas Eversberg
2137db0e01 NMT: Autoanswer for SMS/DMS calls 2016-07-09 15:16:17 +02:00
Andreas Eversberg
e7fa08b6df NMT / SMS: Short Message Service support 2016-07-09 15:16:16 +02:00
Andreas Eversberg
64c829909b NMT / DMS: User data facility support (required for SMS) 2016-07-09 11:27:24 +02:00
Andreas Eversberg
2ee51022f4 Rename 'compander' to 'compandor' 2016-06-20 19:37:56 +02:00
Andreas Eversberg
50136d7e8a NMT: Typo in channel list 2016-05-15 20:43:58 +02:00
Andreas Eversberg
bbab972b51 NMT: Fixup paging on other channel 2016-05-13 09:37:03 +02:00
Andreas Eversberg
bae12156a2 common code: Add input gain option 2016-05-08 15:49:45 +02:00
Andreas Eversberg
7434e21dc2 Multi transceiver support 
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
Andreas Eversberg
b73894ac49 B-Netz / NMT: minor changes at signal detection 2016-05-06 07:05:40 +02:00
Andreas Eversberg
4356c93afa common: Add pre and de emphasis, if the radio does not support it 
Connect to the oscillator of the transmitter - good girl!
You need to enable pre emphasis in this case.

Connect to the discriminator of the receiver - good boy!
You need to enable de emphasis in this case.
 2016-04-24 15:14:56 +02:00
Andreas Eversberg
c0cd74ac85 NMT: Show levels of received frames 2016-04-24 15:12:21 +02:00
Andreas Eversberg
9de121109d common code: Sample rate conversion now supports any rate above 8000 Hz 2016-04-17 16:49:39 +02:00