[VoiceOps] Unique DIDs vs. Custom extensions

Jay Ashworth jra at baylink.com
Sat Sep 19 11:32:41 EDT 2015

----- Original Message -----
> From: "Alex Balashov" <abalashov at evaristesys.com>

> On 09/15/2015 11:58 AM, Rafael Possamai wrote:
> > WIth that in mind, to me it looks like a big waste of DIDs, and I could
> > use custom extensions instead, with a single DID for everyone. Each
> > end-user is assigned a 5 digit code (an extension pretty much) and gets
> > re-routed accordingly. I believe using Asterisk and/or FreePBX I could
> > still collected all the data that is needed.
> So, you'd be okay with a two-stage process where the caller has to
> enter an extension from an IVR?

Indeed: the issue here is caller cognitive load, and hence it's a business
decision, not a technical one.  If the business case calls for "phone 
numbers", nothing is ever a substitute for DIDs.  

And DIDs are generally *cheap*, especially in blocks that large.

-- jra
Jay R. Ashworth                  Baylink                       jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates       http://www.bcp38.info          2000 Land Rover DII
St Petersburg FL USA      BCP38: Ask For It By Name!           +1 727 647 1274

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