asterisk users - Sep 2004 - Transfering incoming calls using same line

Hey all,

Wondering if this is possible..  Incoming call is
answered through X100P, then an extension is dialed
using the same X100P card.  Basically I want to dial
in, enter 9 + <phone#> and have it do a flash then
have it dial *08 <the same phone number> + # on the
same PSTN line to have it transfer my call to another
phone number.  I realize this isn't very safe, but I
would like to be able to make long distance calls to
any number while I'm out with my cell phone so I want
to take advantage of my free LD package on my PSTN
line.  Thanks in advance!

Jon Miron wrote:
> Hey all,
> 
> Wondering if this is possible..  Incoming call is
> answered through X100P, then an extension is dialed
> using the same X100P card.  Basically I want to dial
> in, enter 9 + <phone#> and have it do a flash then
> have it dial *08 <the same phone number> + # on the
> same PSTN line to have it transfer my call to another
> phone number.  I realize this isn't very safe, but I
> would like to be able to make long distance calls to
> any number while I'm out with my cell phone so I want
> to take advantage of my free LD package on my PSTN
> line.  Thanks in advance!
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> 
Well, the X100P is a single-span FXO interface, meaning it can only ever 
have one incoming PSTN line attached to it. And this would be the same 
as your using your regular phone -- if you're already talking on the 
line to someone, you can't very well make another phone call on the same 
line without hanging up the first call.

So you will not be able to do what you're talking about here. Perhaps 
you should look into getting Digium's TDM400P in a 1 FXO and 1 FXS 
module. And you'd also need to have two separate PSTN lines.

The "programming logic" that you talk about here certainly can be done
with the * dialplan. Just the physical aspects that need addressing.

Cheers.

On Wed, 22 Sep 2004 10:20:58 -0400 (EDT), Jon Miron <nxe@rogers.com>
wrote:
> Hey all,
> 
> Wondering if this is possible..  Incoming call is
> answered through X100P, then an extension is dialed
> using the same X100P card.  Basically I want to dial
> in, enter 9 + <phone#> and have it do a flash then
> have it dial *08 <the same phone number> + # on the
> same PSTN line to have it transfer my call to another
> phone number.  I realize this isn't very safe, but I
> would like to be able to make long distance calls to
> any number while I'm out with my cell phone so I want
> to take advantage of my free LD package on my PSTN
> line.  Thanks in advance!
Three applications that would allow you to achieve something like that
- disa, flash and senddtmf.

This is untested, but some logic like the following might help:

Use something like the following in your IVR.

exten => 10,1,DISA,1234|calltransfer

Then, add the context and code like:

[calltransfer]

exten => _X.,1,Flash
exten => _X.,2,Wait,1
exten => _X.,3,SendDTMF(*08${EXTEN}#)
exten => _X.,4,Hangup

I'm not sure off hand how you could terminate a number with #, but
DISA will proceed after 10 seconds anyway.

I'd be curious to see if it works - so let us know.

-Shaun