[asterisk-users] Calls Transfers

[Elliot Murdock]

Thanks!

Although there is no difference between SIP or any other technology,
how does Asterisk reconcile the channel variables?

For example:
1. A calls B
2. B answers
3. B transfers A to C
4. C picks up call

Now, when B makes a transfer (say by pressing the transfer button on a
sip phone), what channel variables and contexts are being used?  Does
Asterisk take all of Channel variables (context, accountcode, etc.)
that would normally be assigned to B and apply that to the channel A
is currently using or is something more sophisticated going on?

Thanks,
Elliot

On Wed, Jan 5, 2011 at 4:08 PM, Danny Nicholas <danny at debsinc.com> wrote:
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Elliot Murdock
> Sent: Wednesday, January 05, 2011 4:58 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] Calls Transfers
>
> Hello!
>
> I am trying to figure out how call transfers work in SIP.  What
> extension does the transferring and transferee devices go to?
>
> Elliot
>
> A call transfer is not a SIP/DAHDI or any other type of technology/branch
> function.  A call transfer is simply the reassignment of leg B of a call to
> a new leg B.  If I call from SIP/100 to SIP/101 and SIP/101 transfers me to
> DAHDI/5551212, the same actions take place as if they had sent me to
> SIP/102.
>
>
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