On 03/21/2011 10:08 PM, Raj Mathur (राज माथुर) <r...@linux-delhi.org> wrote:
On Monday 21 Mar 2011, gurteshwar singh wrote:
Basically what is illegal to do in terms of VoIP is to say have a
PSTN/ISDN line plugged into your voip server and then lease that out
to somebody over IP. In effect selling it as a DID number over IP.
Most other cases are perfectly legal. There's tons of EPABX systems
being sold from vendors like Simens, NEC, etc for years. You plug in
an outside line, which could be PSTN or ISDN and distribute calls to
your extensions (either through IP or TDM). For IP, these systems
(Siemens for eg) come with some sort of a LAN card, which lets you
plugin that massive EPABX box on to your LAN switch and route all
incoming traffic to your softswitch (Asterisk for eg) and then
distribute calls to extensions which maybe IP phones or softphones.
In other words, you need an "air gap" (the words from the document that
defined this restriction) between your network and the rest of the
world. As you say, connecting your own network to your PSTN is
perfectly legal.
Yes, I remember reading somewhere that you can have a PBX without any
issues as long as it is isolated and cannot be used in any manner to
connect to the outside network. This essentially means, the asterisk
machine should not have access to the internet, or any third party network.
And if the DoT guys come and ask you - Why, you can easily connect it to
the internet, what's stopping you? - and you respond - Sir, it's
illegal, that's why we don't do it - and you'll be spared ;-)
Regards
Vivek Kapoor
http://exain.com
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