[Freeswitch-users] Click to Dial using REFER

[Anthony Minessale]

it's probably possible but it would require additional features coded
into mod_sofia.


On Tue, Oct 12, 2010 at 11:24 AM, Neil Burgess
<neil.burgess at redmatter.com> wrote:
> Hi,
>
>
>
> We are looking at how to implement some “Click to Dial” functionality, and
> have come across a “REFER based” method documented on several sites, e.g.
> http://www.tech-invite.com/Ti-sip-service-19.html, which shows the
> possibility of a Switch or some other agent sending a SIP REFER to a Client
> which causes that client to make an outbound call to the “referred to” URI.
>
>
>
> This is also documented elsewhere as:-
>
>
>
> “First, the SIP server sends an INVITE to one of the phones because phones
> usually do not accept
>
> REFER without prior invitation.The INVITE contains 0.0.0.0 as the IP address
> in SDP, because
>
> there is no remote phone (the message is sent by user agent within the SIP
> server which does not
>
> deal with media).
>
> After that, the server sends a REFER method which will ask the phone to send
> INVITE
>
> somewhere else.The URI of the called party is passed to the phone in a
> Refer-To header field of
>
> the REFER method.”
>
>
>
> My question relates to whether or not it is possible to cause FS to issue
> this form of REFER via the Event Socket interface to implement this kind of
> click to dial functionality.
>
>
>
> Rgds,
>
> Neil
>
>
>
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>



-- 
Anthony Minessale II

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