[SIP Beyond VoIP] Access to phone numbers

Saúl Ibarra Corretgé saul at ag-projects.com
Fri May 20 11:07:56 CEST 2011

On May 20, 2011, at 11:03 AM, Iñaki Baz Castillo wrote:

> 2011/5/20 Doug Hardie <bc979 at lafn.org>:
>> I am building a web application for a client who is going to use Blink for VoIP.  However, the user need to be able to press a button on the web page and have it pull down the phone number that the current call was called from and the number that was called.  Can this be done?
> This is the typical Click2Call scenario in which a user is logged in a
> web, presses a telephony number (a link), the web server "originates"
> a call (by means o any custom protocol, i.e: Asterisk AMI Originate)
> and the SIP server generates a calls with destination the phone
> (Blink) of the user.  When the phone answers the call, the SIP server
> generates a second call to the destination clicked in the web and
> brigdes both calls.

What I understood is that he wants to be able to query the information from a browser, not originate calls, but that could also be his case.

> Of course this mechanism is ugly as the user receives an incoming call
> in his phone (Blink). REFER out-of-dialog could be used for achieving
> this, but nobody implements REFER out-ofdialog.

SIPSIMPLE SDK does implement out-of-dialog REFER, but Blink does not use it, so many things could go wrong because of forking...


Saúl Ibarra Corretgé
AG Projects

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