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Welcome to the OpenBTS source code.


For free support, please subscribe to openbts-discuss@lists.sourceforge.net.
See http://sourceforge.net/mailarchive/forum.php?forum_name=openbts-discuss
and https://lists.sourceforge.net/lists/listinfo/openbts-discuss for details.
For additional information, refer to http://gnuradio.org/trac/wiki/OpenBTS.


These are the directories:

AsteriskConfig Asterisk configuration files for use with OpenBTS.
CommonLib Common-use libraries, mostly C++ wrappers for basic facilities.
Control Control-layer functions for the protocols of GSM 04.08 and SIP.
GSM The GSM stack.
SIP Components of the SIP state machines ued by the control layer.
SMS The SMS stack.
TRXManager The interface between the GSM stack and the radio.
Transceiver The software transceiver and specific installation tests.
apps OpenBTS application binaries.
doc Project documentation.
tests Test fixtures for subsets of OpenBTS components.



OpenBTS uses the following UDP port assignments:

5060 -- Asterisk
5061 -- reserved for local SIP softphone
5062 -- OpenBTS SIP interface
5063 -- reserved for local SIMPLE server
5700-range -- OpenBTS-transceiver interface

These can be controlled in the configuration file, apps/OpenBTS.config.


Releases 2.5 and later include the smqueue SMS server. It is NOT part of the
normal GNU build process with the rest of OpenBTS. To build smqueue, go
into the smqueue directory and just type "make".



Release history:

Release Name SVN Reposiory SVN Rev Comments

1.0 (none) SF.net ?? completed L1, L2

1.1 Arnaudville GNU Radio r10019 (trunk)

1.2 Breaux Bridge GNU Radio r10088 (trunk) GNU Build, very early assignment

1.3 Carencro KSP r1 (trunk) first post-injunction release

1.4 Donaldsonville KSP r23 (trunk) fixed Ubuntu build error

1.5 Eunice KSP r39 (trunk) fixed L2 bugs related to segmentation
removed incomplete SMS directory
moved "abort" calls into L3 subclasses

1.6 New Iberia KSP r130 (trunk) import of all 2.2 improvements to non-SMS release


2.0 St. Francisville KSP r54 (smswork) SMS support
file-based configuration

2.1 Grand Coteau KSP r70 (smswork) DTMF support
fixed more Linux-related build errors
-lpthread
TLMessage constructor
expanded stack to prevent overflows in Linux
moved gSIPInterface to main app
fixed iterator bug in Pager

2.2 Houma KSP r122 (smswork) added LEGAL notice
removed Assert classes
stop paging on page response
fixed Pager-spin bug
fixed Transceiver spin bugs
fixed 2^32 microsecond rollover bug
reduced stack footprints in Transceiver
fixed SMS timestamps
check LAI before using TMSI in LUR
reduced memory requirement by 75%
removed PagerTest
fixed stale-transaction bug in paging handler
fixed USRP clock rollover bug
faster call connection
new USRPDevice design

2.3 Jean Lafitte KSP r190? (trunk) check for out-of-date RACH bursts
better TRX-GSM clock sync
formal logging system
command line interface
emergency call setup

2.4 Kinder KSP rxxx (trunk) fixed BCCH neighbor list bug
support for neighbor lists
fixed support for non-local Asterisk servers
cleaner configuration management
more realtime control of BCCH parameters
proper rejection of Hold messages
fixed L3 hanging bug in MTDCheckBYE


2.4.1 Kinder KSP fixed lots of valgrind errors

2.4.2 Kinder KSP zero-length calling party number bug
g++ 4.4 #includes

2.5 Lacassine SMS server support
GNU Radio 3.2 compatibility
configurable max range and LU-reject cause
"page" & "testcall" CLI features
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