Hello everyone!
I am trying to connect two different boxes with a crossover cable both having Digium TE410P cards installed. Box-A is running asterisk and Box-B is running Yate. Configuration files are as below:
Box-A:
system.conf:
span=4,4,0,ccs,hdb3,crc4
mtp2=94
bchan=95-124
chan_dahdi.conf:
linkset=2
signalling=ss7
usecallerid=yes
ss7type=itu
ss7_called_nai=dynamic
ss7_calling_nai=dynamic
ss7_internationalprefix=00
ss7_nationalprefix=0
ss7_explictacm=yes
context=from-yate
switchtype=euroisdn
pointcode=2505
adjpointcode=2526
defaultdpc=2526
networkindicator=national
group=1
cicbeginswith=2
channel=95-124
sigchan=94
Box-B:
system.conf:
span=3,0,0,ccs,hdb3,crc4
dchan=63
bchan=64-93
zapcard.conf:
[span3]
type=E1
offset=62
sigchan=1
start=0
dtmfdetect=disable
voicechans=2-31
readonly=no
ysigchan.conf:
[isup_Trunk3]
enable=yes
type=ss7-isup
pointcodetype=ITU
service=5
pointcode=2526
defaultpointcode=2526
remotepointcode=2505
priority=regular
network=linkset3
lockgroup=no
earlyacm=no
sls=cic
offset=1
voice=span3
strategy=random
channelsync=1000
ringback=yes
presentation=allowed
screening=user-provided
format=alaw
print-messages=yes
slsshift = false
checklinks=true
checkfails=true
[linkset3]
enable=yes
type=ss7-mtp3
netindicator=national
netind2pctype=ITU
route=ITU,2505,0
local=ITU,2526
autostart=yes
link=link3
link3.sig=span3
[link3]
type=ss7-mtp2
autostart=yes
emergency=yes
filllink=no
rxunderrun=0
link3.sig=span3
sig=span3
Here is the output of ss7 show linkset 2 from asterisk CLI:
localhost*CLI> ss7 show linkset 2
SS7 flags: 0x0
SS7 linkset 2 status: Down
SS7 calling nai: -1
SS7 called nai: -1
SS7 nationalprefix: 0
SS7 internationalprefix: 00
SS7 unknownprefix:
SS7 networkroutedprefix:
SS7 subscriberprefix:
Switch type: ITU
SLS shift: 0
numlinks: 1
numsps: 1
---------------------------------
Adjacent SP PC: 2526 STATE: DOWN
TRA: SENT T19: not running T21: not running
Routes:
DPC State T6 T10
Link ADJ_PC:SLC: 2526:0 NetMngSLS: 0
State: INSERVICE, UP
STD Test: passed
Got, sent :
Inhibit:
Changeover: NO
Tx buffer: 0
Tx queue: 0
Retrans pos 0
CO buffer: 0
CB buffer: 0
Last FSN: 1
MTP3timers:
as you can see mtp2 is up but mtp3 is not and I get a lot of Got ISUP message on link while MTP3 state is not UP! in Box-A. This is really odd because running status sig linkset3 in rmanager of Yate returns:
%%+status:sig linkset3
module=sig,component=linkset3,type=ss7-mtp3;status=operational
%%-status
which means mtp3 is operational!!!
BTW, If I just replace Yate with asterisk on Box-B then ISUP will be operational and I can call each box from another!. Any idea what's causing this behavior?
UPDATE 1:
Something is looking wrong to me... I am seeing NET_MNG messages being sent from yate to asterisk having SLC=0xF and asterisk is dropping them with following message: Received message for slc 0xf, but we are 0x0. Dropping
[2] Len = 9 [ 84 ab 06 80 c9 c9 71 f2 17 ]
[2] FSN: 43 FIB 1
[2] BSN: 4 BIB 1
[2] <[2503:0] MSU
[2] [ 84 ab 06 ]
[2] Network Indicator: 2 Priority: 0 User Part: NET_MNG (0)
[2] [ 80 ]
[2] OPC 2503 DPC 2505 SLS 15
[2] [ c9 c9 71 f2 ]
[2] H0: 7 H1: 1
[2] Message type: TRA
[2] [ 17 ]
