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- ("Taken from the README in libss7")
- Tested Switches:
- ================
- Siemens EWSD - (ITU style) MTP2 and MTP3 comes up, ISUP inbound and outbound calls work as well.
- DTI DXC 4K - (ANSI style) 56kbps link, MTP2 and MTP3 come up, ISUP inbound and outbound calls work as well.
- Huawei M800 - (ITU style) MTP2 and MTP3 comes up, ISUP National, International inbound and outbound calls work as well, CallerID presentation&screening work.
- and MORE~!
- Thanks:
- =======
- Mark Spencer, for writing Asterisk and libpri and being such a great friend and boss.
- Luciano Ramos, for donating a link in getting the first "real" ITU switch working.
- Collin Rose and John Lodden, John for introducing me to Collin, and Collin for the first
- "real" ANSI link and for holding my hand through the remaining changes that had to be
- done for ANSI switches.
- To Use:
- =======
- In order to use libss7, you must get at least the following versions of DAHDI and Asterisk:
- DAHDI: 2.0.x
- libss7: trunk (currently, there *only* is a trunk release).
- Asterisk: 1.6.x
- You must then do a `make; make install` in each of the directories that you installed
- in the given order (DAHDI first, libss7 second, and Asterisk last).
- NOTE: In order to check out the code, you must have the subversion client installed. This
- is how to check them out from the public subversion server.
- These are the commands you would type to install them:
- `svn co http://svn.digium.com/svn/dahdi/linux/trunk dahdi-trunk`
- `cd dahdi-trunk`
- `make; make install`
- `svn co http://svn.digium.com/svn/dahdi/tools/trunk dahdi-tools`
- `cd dahdi-tools`
- `./configure; make; make install`
- `svn co http://svn.digium.com/svn/libss7/trunk libss7-trunk`
- `cd libss7-trunk`
- `make; make install`
- `svn co http://svn.digium.com/svn/asterisk/trunk asterisk-trunk`
- `cd asterisk-trunk`
- `./configure; make; make install;`
- This should build DAHDI, libss7, and Asterisk with SS7 support.
- In the past, there was a special asterisk-ss7 branch to use which contained the SS7 code.
- That code has been merged back into the trunk version of Asterisk, and the old asterisk-ss7
- branch has been deprecated and removed. If you are still using the asterisk-ss7 branch, it
- will not work against the current version of libss7, and you should switch to asterisk-trunk
- instead.
- CONFIGURATION:
- In /etc/dahdi/system.conf, your signalling channel(s) should be a "dchan" and your bearers should
- be set as "bchan".
- The sample chan_dahdi.conf contains sample configuration for setting up an E1 link.
- In brief, here is a simple ss7 linkset setup:
- signalling = ss7
- ss7type = itu ; or ansi if you are using an ANSI link
- linkset = 1 ; Pick a number for your linkset identifier in chan_dahdi.conf
- pointcode = 28 ; The decimal form of your point code. If you are using an
- ; ANSI linkset, you can use the xxx-xxx-xxx notation for
- ; specifying your linkset pointcode.
- adjpointcode = 2 ; The point code of the switch adjacent to your linkset
- defaultdpc = 3 ; The point code of the switch you want to send your ISUP
- ; traffic to. A lot of the time, this is the same as your
- ; adjpointcode.
- ; Now we configure our Bearer channels (CICs)
- cicbeginswith = 1 ; Number to start counting the CICs from. So if DAHDI/1 to
- ; DAHDI/15 are CICs 1-15, you would set this to 1 before you
- ; declare channel=1-15
- channel=1-15 ; Use DAHDI/1-15 and assign them to CICs 1-15
- cicbeginswith = 17 ; Now for DAHDI/17 to DAHDI/31, they are CICs 17-31 so we initialize
- ; cicbeginswith to 17 before we declare those channels
- channel = 17-31 ; This assigns CICs 17-31 to channels 17-31
- sigchan = 16 ; This is where you declare which DAHDI channel is your signalling
- ; channel. In our case it is DAHDI/16. You can add redundant
- ; signalling channels by adding additional sigchan= lines.
-
- ; If we want an alternate redundant signalling channel add this
- sigchan = 48 ; This would put two signalling channels in our linkset, one at
- ; DAHDI/16 and one at DAHDI/48 which both would be used to send/receive
- ; ISUP traffic.
- ; End of chan_dahdi.conf
- This is how a basic linkset is setup. For more detailed chan_dahdi.conf SS7 config information
- as well as other options available for that file, see the default chan_dahdi.conf that comes
- with the samples in asterisk. If you would like, you can do a `make samples` in your
- asterisk-trunk directory and it will install a sample chan_dahdi.conf for you that contains
- more information about SS7 setup.
- For more information, please use the asterisk-ss7 or asterisk-dev mailing
- lists (I monitor them regularly) or email me directly.
- Matthew Fredrickson
- creslin@digium.com
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