Re: (ASCEND) Dialout on Max TNT

[Peter Lalor <plalor@infoasis.com>]

>From: Oliver Stettner <os@landshut.org>
>
>Oliver Stettner wrote:
>
>>  > > I am trying to convince the Max TNT to initiate a dialout call, but I'm
>>  > > not yet successfull. :-(
>>  > >
>>  > > I wanted to use the example from the documentation:
>
>>  > set telco-options answer-originate = ans-and-orig
>>  > set telco-options data-service = 64k-clear      # default is 56k that
>>  > means the TNT uses V.110 56kbps on German-Trunks when dealing out :-(
>
>>  That was it! Thanx very much. :-)
>
>OK - now I have the dialout solution working. Via RADIUS I can create an
>IP-route to a subnet which can be reached by dialing out.
>
>But now I want even more. ;-)
>
>Our company wants to sell a solution called "D-Channel-Signaling". This
>means, we call the customer, the customer's router sees our call, but
>does not answer and calls us back. The only problem is: if the
>customers's router answers the call, we are charged by the telephone
>company - which of course we don't want.

We do exactly that.

>Is there a possibility to ensure that the customers's router (which is
>not under our administration!) does not answer the call?

Only if the customer does not have access to their router. ;-)

>The only solution I came across so far ist to set max-dialout-time [in
>SYSTEM] to a very short period. But I'm not sure if that's the best
>solution.

That won't really help.

The customer must have Caller ID. You set the customer router to 
_require_ CLID auth and set the connection profile to callback. It 
will then refuse the call and call back, and you won't incur any 
charges. If CLID Auth is not set to require and/or the connection 
profile is not set to call back, you will pay for the call. In that 
case, the only solution I'm aware of is something in the contract for 
"D-Channel Signalling. I'd suggest requiring that the customer not 
have control of their router if you want to be sure.

One nice trick with all this: You only need a single PRI able to 
place outbound calls for all your customers. It probably doesn't even 
need to be in the same TNT as the one the customer will call, or even 
local to the customer. When you call the customer (for free), they 
will call back whatever number is in the connection profile, which 
can be on inbound-only PRI on a POP local to them. That POP needn't 
even have Caller ID.
-- 

Peter Lalor           Infoasis
plalor@infoasis.com   http://www.infoasis.com/

"Where's my burrito?" -- Homer
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