[Asterisk-Dev] OT - Regulatory hurdles for Zaptel and Japanese PRI

[James Sharp]

> J1 requires hardware support from the framer, but this is no problem. 
> The framer chip used on the TE405P and TE410P cards supports J1. The 
> framers for the other Digium cards probably do too. The current driver 
> software probably doesn't, but the necessary changes should be minor.

yes.  It requires twiddling 2 bits on the framer chip (at least in the 
T100P).  I made changes to the T100P driver to support this, but never 
could test it.

>
> All countries require approval for hardware like a T1/E1/J1 card. The 
> EU and US have a sort of self-certification waver scheme now, but 
> approvals are essentially still required. If you change something 
> re-approval is required. The self-certification thing certainly helps 
> there, but self-certification might expose you to greater liabilities.
>
> INS-1500 is the Japanese ISDN protocol spec. It is based on the Q.9xx 
> specs., like everyone else's ISDN spec. It should not be hard to adapt 
> libpri for it. The other ISDN protocols only differ in minor ways, 
> which is why a single libpri can handle them all.

 From the reading I did a while ago, it seems that INS-1500 is a strange 
mix of EuroISDN and NI-2.  Just different enough to make things not 
work right.