[VoIP] ITAD Gateway

[John R. Covert]

More fun for CNET subscribers.  A gateway to ITAD or ISN (Internet
Subscriber Number) dialing is now operating on CNET 1-263-ITAD (4823).

ISN dialling uses the format <subscriber-number>*<domain-number>#
So, for example, since Free World Dialup has been assigned the
Internet Telephony Administrative Domain "262", you would call the
FWD echo test by dialling the gateway and then 613*262#.  Or to
call any number at UCLA, you would dial the five digit extension,
a "*", and then 269#.  For example, UCLA Sports info: 66831*269#

There is a list of ITAD-enabled organizations at
http://www.iana.org/assignments/trip-parameters

You will find a lot of universities and 

Not every organization on this list has an operational system accepting
calls.  And there aren't any standards for what might be assumed to
be a main number.  It's a maze of twisty passages, all different.

Have fun.

/john

p.s.: Wish I'd been paying attention earlier when Jayson was having
trouble with his 2500.  I could have told him the IAXy has its
polarity reversed.  Since it supposedly doesn't matter anymore,
and engineers these days don't know how to read standards (they
can't understand "send-correctly, accept-permissively"), we have
lots of devices that are backwards, or even worse (the Sipura-3000)
actually change polarity under certain circumstances.