[Asterisk-Users] DID on analog line

Apu Islam apuislam at gmail.com
Thu Oct 13 12:49:24 MST 2005


Matt,
 thanks. do you know if the cheaper fxo cards will handle it ? this is
basically for a test to check some billing engines.
I am wondering if anyone had done this in the past. any clue whether Qwest
provides this kind of services on U.S. ?
  -apu

 On 10/13/05, Matthew Crocker <matthew at crocker.com> wrote:
>
>
> Yes, DID on analog line is possible. Your carrier may or may not
> support it. For the most reliable service you'll want a 'wink
> start' line with DMTF digits. With a DID line you supply
> 'battery' (-48VDC) to the phone company. They bring the tip to
> ground for a second to signal an incoming call. You reverse polarity
> (the wink) on the battery to signal you are ready for digits. They
> DTMF the digits down the line and connect the audio channel. You
> can have them send 10 or less digits, the more digits, the longer it
> takes to signal for each call.
>
> I don't know if Asterisk supports analog DID but I assume it would as
> it supports just about everything else.
>
> -Matt
>
> On Oct 13, 2005, at 3:20 PM, Apu Islam wrote:
>
> > Is DID on analog line possible ? ( my telco is qwest) . Just
> > wondering if there is any way to test it on anlog wcfxo cards.
> >
> > -apu
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> --
> Matthew S. Crocker
> Vice President
> Crocker Communications, Inc.
> Internet Division
> PO BOX 710
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> http://www.crocker.com
>
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