Hi,

i am wondering what will happen if you send a SIP REFER (transfer) after validating leg-a without actually answering the call; will it still cost you 2 * 1.44

:/

-mustafa

On Wed, Aug 25, 2010 at 10:33 AM, Malay Thakershi <mthakershi@gmail.com> wrote:

I am currently looking at Vitelity. They have 1.44 cents per minute. They do charge for incoming/outgoing both.

I am not literally dialing out to a phone. I want to dial a mobile number or any other US number for that matter.

Here is what I intent to do:

1. A US phone dials to Vitelity number -- comes to my FS box

2. I validate few things

3. Dial another US number and connect received call to that one

So as you said I will be charged 2 * 1.44 (since I can't terminate the arrived call after validation).

Is there any other way to the sequence I have specified above?

Are there providers similar to Vitelity but cheaper (with relatively same features)?

Thank you.

On Tue, Aug 24, 2010 at 6:06 PM, Anthony Cosgrove <acosgrov@gmail.com> wrote:

On Tue, 2010-08-24 at 13:58 -0500, Malay Thakershi wrote:
> Hello,
>
>
> It would be a great help if someone can guide me.
>
>
> 1. I would like to first receive a call, perform certain validations.
> (Able to do this via mod_managed application that handles call from
> dialplan).
>

That should not be a problem, I don't know your requirements so can't
provide a full answer.

>
> 2. Now, I would like to dial out to a PSTN number so that received
> call is connected to this new outbound number.
>

This can be done and is called hairpinning.

>
> How can this be done? Do I use Originate from within my .NET
> (mod_managed) code?
>

Yes, you would be bridging the two legs like any normal call. Instead of
going to an endpoint you're going back out over the PSTN.

>
> Do I get charged for both incoming and outbound call until the entire
> session ends? Is there a way to receive call, validate and then sort
> of transfer and then terminate the received call so I do not get
> charged for both?

That would depend on your provider but most likely yes. As for
terminating one end after validation that is not going to happen. A leg
terminates to you on an agreed fee schedule. No carrier that I know of
supports that. Now if you kept everything SIP... you could do a transfer
after the validation.



Anthony C.

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--
Ghulam Mustafa
cell: +92 333.611.7681
sip: cyrenity@ekiga.net
mail: mustafa.pk@gmail.com
web: cyrenity.wordpress.com

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