Is the last digit of a phone number random?

Posted by sehugg on Stack Overflow See other posts from Stack Overflow or by sehugg
Published on 2010-04-28T17:50:46Z Indexed on 2010/05/05 8:38 UTC
Read the original article Hit count: 186

Filed under:

telephony

|

voicexml

I have a telephony app which has a prompt which requires user choice. I made the app select one of 10 different phone prompts based on the last digit of the caller's phone number. Then I measure whether the user responds to the prompt (accept) or decides to skip to the next step (reject). I thought this would work well enough as a random selection, but I think I may be wrong.

What I'm finding is that the exact same prompt has a dramatically different response rate (25% vs 35%) for two different last digits. Now I'm curious why this is. Does anyone know how phone numbers are assigned and why the last digit would be significant?

© Stack Overflow or respective owner

Related posts about telephony

telephony + exchange 2010 (unified messaging)

as seen on Server Fault - Search for 'Server Fault'
ok i am a complete n00b when it comes to telephony ... i was wondering we are beginning to play with exchange 2010 in the office ... How can i connect a telephone line into the server? so we can ring in and get our emails via phone (we have a spare direct line) I'm going to guess it's not as easy… >>> More
Telephony RESTful API

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm looking for a simple telephony API for use with Rails application. The application must be able to make a notification call through the API and receive confirmation code from the dialpad. >>> More
Welcome to Telephony Daily

as seen on Internet.com - Search for 'Internet.com'
Our new portal newsletter will bring you the latest in VoIP and IP communications information Monday through Friday. >>> More
Virtualization: The Future of Telephony?

as seen on Internet.com - Search for 'Internet.com'
Siemens, Microsoft, and Mitel have all made recent moves in that direction. What does it mean? >>> More
Does anyone provide a Skype connection service?

as seen on Super User - Search for 'Super User'
Is there a way of offering Skype access to incoming calls while keeping all telephony traffic over our chosen business telephony provision? Is there a 3rd party who can route incoming Skype calls to our telephone system? The business has had requests from contacts wanting to call us via Skype… >>> More

Related posts about voicexml

VoiceXML Prompt & SSML <mark> element. How to read prompt from the specified position?

as seen on Stack Overflow - Search for 'Stack Overflow'
<mark> element informs that reading went on to some point. But is there a way we could read the prompt again from the specified position returned by mark (name) id? It could be useful in such a scenario: we are reading a long text. Then the user commands: PAUSE. We stop. Then the user would… >>> More
Voicexml grammar

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I try to use grammar in my voicexml file. At first i tried an In-line grammar. I used an example from a website, but it doesn't work. here is the code: <?xml version="1.0" encoding="UTF-8"?> <vxml [...] version="2.0"> <form id="test"> <field name="var"> <prompt>choose</prompt> <… >>> More
Voicexml how to store input into a global variable

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I'm creating a voicexml appliacation. I want to store an user input into a global variable. I wondered, the input should be stored in the fieldvar. shouldn't it? After I tried it with this, i tried to store it in an global variable: <assign name="myvar" expr="'myinput'"/> but somehow… >>> More
Visual VoiceXML/VXML development tool?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, all. Does anyone know of any tools out there that will let me run and debug a VXML application visually? There are a ton of VXML development tools, but they all require you to build your application within them. I have an existing application that uses JSPs to generate VXML, and I'm looking… >>> More
What is voice xml?

as seen on Stack Overflow - Search for 'Stack Overflow'
While looking for a way to use speech recognition with flash I crossed paths with voice xml. I've gone through the wc3 description of it but still I got a few big doubts. Can I simply create a vxml doc and place it on my webserver? what are the requirements? Will it work? Can I input with a microphone… >>> More