bsc-tests: Add BTS_Simulation, RSL_Tests and .cfg file
diff --git a/bsc/README.txt b/bsc/README.txt
new file mode 100644
index 0000000..aa82f32
--- /dev/null
+++ b/bsc/README.txt
@@ -0,0 +1,72 @@
+Integration Tests for OsmoBSC which we can perform from TTCN-3
+
+= exhaustion of resources
+
+* send many CHAN RQD (any) and count if all channels get actually allocated
+** verify BTS_CTR_CHREQ_TOTAL reflects number sent on RSL
+** verify how quickly they get released again
+** verify that CHAN RQD with same RA + FN get only on allocation
+* verify that we get IMM_ASS_REJ once channels are exhausted
+** verify BTS_CTR_CHREQ_NO_CHANNEL increments accordigly
+* verify for particular channel type / cause values
+* verify that IMM.ASS.REJ has increasing back-off
+* verify how BSC reacts to AGCH overload (DELETE IND)
+
+
+= paging
+
+* page by TMSI vs. page by IMSI
+* verify if CCCH_LOAD_IND(PCH) slot count is observed
+* verify paging expiration
+* paging with different identity (lac/cgi/...) on A interface -> expect on right BSC(s)
+
+= hand-over
+
+* intra-BSC HO
+* handover detect when not expected
+
+= erroneous channel release
+
+* no response to CHAN ACT
+* CONN FAIL IND from BTS
+** verify counter increment of BTS_CTR_CHAN_RF_FAIL
+* no (or late?) response to RF CHAN REL
+* no (or late?) response to RLL RELEASE REQ
+* RLL messages on not-activated channels
+
+= misc
+
+* SMS-CB
+* behavior in case of CHAN ACT NACK
+* EST REQ for SAPI3 originating from core
+* behavior of BSC in various error cases (ERR IND)
+** BTS_CTR_CHAN_RLL_ERR increment on T200_EXPIRED
+* MODE MODIFY with ACK / NACK / no response
+
+= IPA voice related
+
+* expect IPA CRCX, send UDP flows, expect them on AoIP
+* expect RTCP
+* missing RTP flow?
+* missing RTCP?
+* missing / drop-outs in RTP flow[s]
+* no response to IPA CRCX / MDCX / DLCX
+
+= counters
+
+* test each and every counter in BSC, validate via CTRL interface
+** RSL/OML failure: drop link, expect BTS_CTR_BTS_xxx_FAIL +1
+** paging
+*** send PAGING from MSC side
+*** expect BSC_CTR_PAGING_ATTEMPTED increase by one
+*** expect BSC_CTR_PAGING_EXPIRED on T3113 expiration
+** BTS_CTR_CODEC_* on CHAN_ACT_ACK
+* new counter ideas
+** number of SCCP CR timeouts
+** number of incoming RESET from MSC
+
+= VTY based/corresponding tests
+
+* changes in BCCH FILLING
+* changes in SACCH FILLING
+