SS7 on osmocom-3G

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Harald Welte laforge at gnumonks.org
Fri Apr 6 12:10:26 UTC 2018


On Fri, Apr 06, 2018 at 09:27:20AM +0000, Radiarisainana Sitraka wrote:
> My quesitonn is , with the osmocom-3G and the box nanocell3G for example; it is possible to send ss7 message like sri-for-sm, ...!?

FYI: SRI-for-SM is not a SS7 Message, but a MAP message.   MAP runs several
layers on top of SS7.  However, SS7 is used for much more than just MAP.

In the osmocom stack, we currently do not support TCAP/MAP.

There have been several attempts in the past, like

* C language libosmo-tcap + libosmo-map (abandoned ~ 2012)
* Erlang language "signerl" used in some real-world scenarios but 
  development discontinued in 2013):
  http://git.osmocom.org/erlang/signerl/

* A Smalltalk implementation that Holger did (I don't have a source code
  link around)

There has never been any contribution (in terms of code or funding) to have
a proper MAP implementation in the Osmocom stack.  Today, the best approach
to do this is to implement a proxy between the GSUP protocol and TCAP/MAP
on the other side.

Regards,
	Harald

-- 
- Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
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