Re: [asterisk-biz] CallBack/ Call Through SIM Adapter

These of you that are interested in such functionality and more, we are
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http://www.tikalnetworks.com/voip/index.php?cid=18

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________________________________________

From: asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] On Behalf Of Moshe Maeir

Sent: Tuesday, May 20, 2008 12:23 AM

To: Commercial and Business-Oriented Asterisk Discussion

Subject: Re: [asterisk-biz] CallBack/ Call Through SIM Adapter

Nigel,

I think you are looking at it backwards...

The sim does not do the callback. All it does is dial an access number
automatically. If that access number than triggers a call back, it does,

What interests me more is the callthru. In many countries you can have a
discounted rate to a specific number. So if you get a discounted rate

to the access number which gives you low international rates, you can save
money. Here's how.

Say your regular minutes cost you 15 cents and your provider charges 1.00
to call international. So if you dial direct you pay 1.15. Now of course you
can use a calling card which charges you 3 cents for the same destination so
you will pay 0.18. Big savings, but big pain also. However if the access
number is programmed in the sim, the customer dials as he always does, but
the call goes out thru the access number instead directly.

You save

1. On using an access number which is a discounted number. So you pay less
for for the local minutes

2. You pay less for international minutes

3. you do not have the pain of renewing PIN numbers and entering them, like
on a calling card.

Moshe

nigel.dennis@sympatico.ca wrote:

I can not see this sim card making callbacks. This sim from viewing it
simply bridges your telephone book in your cell phone after initiating a ANI
callback from a callback service. It also can NOT do a dail through without
you incurring charges from your cellular provider. To do a callback you must
have a source calling your phone that has free incoming minutes from your
provider then you can answer, access your phone book and initiate the call.
The sim card must have the capability to provide a direct inward system
access to give you a dial tone so that you can use it to bridge the phone
book of your cell phone to make the call for a dial through. Just my imput
from running a callback/call through service.

________________________________________

From: Moshe Maeir <m345@netvision.net.il>

Reply-To: Commercial and Business-Oriented Asterisk
Discussion<asterisk-biz@lists.digium.com>

To: Commercial and Business-Oriented Asterisk
Discussion<asterisk-biz@lists.digium.com>

Subject: Re: [asterisk-biz] CallBack/ Call Through SIM Adapter

Date: Mon, 19 May 2008 23:24:36 +0300

>Has anyone tried it?

>I have used a resident s/w program that does the same. But this seems

>easier to sell since you do not need a smartphone.

>Another issue is if you set it to call thru a specific number how does

>it handle roaming?

>

>Moshe

>

>Michael Wen wrote:

> > This SIM Dailer could overcome the inconvenience of cellular CallBack
system:

> >
http://www.tangshop.com/sim-dailer-adapter-smart-card-gsm-phones-callback-ca
lling-card.html

> >

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