TechTalkz.com Logo Ask the Experts!

Go Back   TechTalkz.com Technology & Computer Troubleshooting Forums > Tech Support Archives > Telecom

ISDN2e COLP & COLR

Telecom

 
 
 
Thread Tools Display Modes
Old 26-11-2007, 07:22 AM   #1
David Quinton
Guest
 
Posts: n/a
ISDN2e COLP & COLR

A couple of questions please:

1) We have various non-geographic (0870, 090x) numbers delivered to BT
National Numbers.
Am I correct in thinking that if I ask for COLR, then callers using
ISDN will not be able to see / find out the geographic number to which
the calls are delivered?

2) For incoming calls, does the data include the *dialled* number
(rather than the delivered to number) anwhere?
--
Locate your Mobile phone: <http://www.bizorg.co.uk/news.html>
Great gifts: <http://www.ThisBritain.com/ASOS_popup.html>
 
Old 26-11-2007, 07:22 AM   #2
R. Mark Clayton
Guest
 
Posts: n/a
Re: ISDN2e COLP & COLR


"David Quinton" <usenet_2005D_email@REMOVETHISBITbizorg.co.uk> wrote in
message news6hh73t6sdtbrnrctn3f2lcti7btpgijua@4ax.com...
>A couple of questions please:
>
> 1) We have various non-geographic (0870, 090x) numbers delivered to BT
> National Numbers.
> Am I correct in thinking that if I ask for COLR, then callers using
> ISDN will not be able to see / find out the geographic number to which
> the calls are delivered?


Unfortunately you are correct. This allows rip off phone scamsters to
operate with relative impunity. How does yours work?

>
> 2) For incoming calls, does the data include the *dialled* number
> (rather than the delivered to number) anwhere?
> --
> Locate your Mobile phone: <http://www.bizorg.co.uk/news.html>
> Great gifts: <http://www.ThisBritain.com/ASOS_popup.html>



 
Old 26-11-2007, 07:22 AM   #3
David Quinton
Guest
 
Posts: n/a
Re: ISDN2e COLP & COLR

On Wed, 20 Jun 2007 11:16:10 +0100, "R. Mark Clayton"
<nospamclayton@btinternet.com> wrote:

>> Am I correct in thinking that if I ask for COLR, then callers using
>> ISDN will not be able to see / find out the geographic number to which
>> the calls are delivered?

>
>Unfortunately you are correct. This allows rip off phone scamsters to
>operate with relative impunity. How does yours work?


.... with relative impunity <G>.

We're thinking of migrating some of our customers' 090x services onto
an Asterisk box and I wanted to make sure that we asked BT for the
right thing when we ordered the lines.

thanks
--
Locate your Mobile phone: <http://www.bizorg.co.uk/news.html>
Great gifts: <http://www.ThisBritain.com/ASOS_popup.html>
 
Old 26-11-2007, 07:22 AM   #4
JW
Guest
 
Posts: n/a
Re: ISDN2e COLP & COLR

David Quinton wrote:
> A couple of questions please:
>
> 1) We have various non-geographic (0870, 090x) numbers delivered to BT
> National Numbers.
> Am I correct in thinking that if I ask for COLR, then callers using
> ISDN will not be able to see / find out the geographic number to which
> the calls are delivered?
>


That's the purpose of COLR, though the caller would need to
have ISDN with a COLP subscription to see the number. A
presentation number can also be used to mask the connected
line number.

> 2) For incoming calls, does the data include the *dialled* number
> (rather than the delivered to number) anwhere?


The exchange will only send DDI or MSN digits, plus the
caller's ID/PN, if not restricted. I'm not aware of any
indication of forwarding, though there could be a flag
somewhere in the protocol.
 
 

Thread Tools
Display Modes



< Home - Windows Help - MS Office Help - Hardware Support >


New To Site? Need Help?

All times are GMT. The time now is 12:38 AM.


vBulletin, Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO
Copyright © 2005-2013, TechTalkz.com. All Rights Reserved - Privacy Policy
Valid XHTML 1.0 Transitional