----- Original Message -----
From: "Kristian Kielhofner" <[EMAIL PROTECTED]>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users@lists.digium.com>
Sent: Tuesday, September 26, 2006 4:28 PM
Subject: Re: [asterisk-users] PRI Outbound CallerID Question
Shawn Kelley wrote:
Hi all,
I've searched around and haven't found much of an answer to my issue. Any
advice from you would be appreciated.
Problem: Need to take an inbound call from our PRI and forward it to
another
PSTN user via the PRI, sending the original callers id with it.
I know this can be done since we currently use an 800 service that does
it.
You call the 800 number; they answer and put you on hold. They then
outcall
to the pstn numbers we have defined and the incoming call shows up with
the
original callers CID, we answer and have options to accept or reject the
call.
So I know the 800 provider is staying in the middle of the call and not
just
performing a redirect to us.
I've tried the various CID settings in Asterisk, but am not able to use
anything but our DID numbers for our outbound caller id.
My telco has been unresponsive to this issue. Does anyone know if it's
possible with a PRI or do you have to have some
other type of PSTN connection such as SS7?
Thanks!!
--Shawn
Shawn,
1) When a call comes in, put the original CALLERID(number) into a
variable. This way, if you mess with the real CALLERIDNUM through your
dialplan you can always set it back. I like to use KKFROMCID to make sure
that no scripts, Asterisk, etc mess with my original CID!
2) Get a telco that lets you set any CID. I don't know if I just look
trustworthy or something, but I have had no problems whatsoever getting
several LECs and CLECs in multiple states to let me set any CID I want.
Looking at the other posts, it seems that some people have problems with
that. I never considered it to be a big deal, just a cool privilege that
you gain with a PRI... It seems that isn't the case with some telcos.
3) I don't know if this works or not, but I could swear that there is a
redirect possible on PRI (similar to SIP 302). I don't know if
app_transfer (and your telco) support it, but it would be really cool
because it would save you in terms of the number of used channels. (Using
0 channels instead of 2).
Check this thread:
http://lists.digium.com/pipermail/asterisk-users/2003-May/004594.html
--
Kristian Kielhofner
There's a good chance that one reason they are unresponsive is the loss of
revenue - if you change the caller id number to something that is not
theirs.
James Taylor
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