[asterisk-ss7] Asterisk+ss7 to NEC SV8300

[Richard Kenner]

I'm new to Asterisk and SS7 and I'm trying to see if I can use it to
connect a NEC SV8300 to Asterisk.  I'm using a Digium card and was able to
make a PRI connection to a CD-PRTA card on the SV8300.  I now added a
CD-CCTA card and using ss7 instead of PRI, but this time am having
problems.  The linkset doesn't come up and it appears that no messages are
being recieved from the SV8300.  Does anybody have any suggestions for a
next step?  Has this ever been tried?  I'm using 

span=2,2,0,esf,b8zs
# termtype: te
bchan=25-47
mtp2=48
echocanceller=mg2,25-47

in system.conf.