[Serusers] call transfer INVITE / REFER

[Nils Ohlmeier]

If you believe in the Grandstream handbook, ask them why or how they do it or 
wrote it in their book.
Otherwise, like Samuel already wrote, read the sipping-service-examples draft.

  Nils

On Tuesday 05 July 2005 13:25, Iqbal wrote:
> but in the first instance is a INVITE sent, and then it drops to a
> REFER, cause that is what the grandstream handbook says
>
> Iqbal
>
> Nils Ohlmeier wrote:
> >Hi,
> >
> >take a look at the SDP of the INVITE. Probably it just puts the other side
> >on-hold before sending the REFER.
> >But I have no real clue how transfering without REFER should work. (Except
> > a cumbersome solution with Replaces and 3pcc, which I have never.)
> >
> >  Nils
> >
> >On Monday 04 July 2005 21:07, Iqbal wrote:
> >>Hi
> >>
> >>Should the call transfer use INVITE or REFER as a method, cause I seem,
> >>to be getting INVITE, but this then causes problems with authentication.
> >>
> >>A <-->B  then B transfer to C (all IP phones)
> >>
> >>This transfer seems fine, but it uses INVITE, no REFER . All phones on
> >>same sip domain/server
> >>
> >>Now when this setup changes
> >>
> >>pstn <---->B and then B tried to transfer to C, we get nothing, well we
> >>get 404 , it check the !location setting, and says ur not allowed.
> >>
> >>Is the REFER the first message to be sent, or is there a INVITE
> >>transaction first,
> >>
> >>Iqbal
> >>
> >>
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> >>http://lists.iptel.org/mailman/listinfo/serusers
> >
> >.