[Asterisk-Users] attended transfer issue

[Damon Estep]

Not sure, but the fact that the # xfer in asterisk releases the call
without the ability to do an attended transfer is an asterisk issue,
maybe not a "defect", but a design issue inconsistent with typical PBX
behavior.

To be "typical" it would act like this;

Press pound to get secondary dial tone
Dial the number for the transfer
Either hang up or stay on the line after progress (ring)
If you stay on the line the transfer completes when you hang up
If you hang up during the ring the call is blind transferred
If you press the same feature access key (#) again you get the call back
and terminate the transfer.

Make sense?

Is this feature already there? If it is it would be easy to code the
feature key on the phone to use the sip feature server function, if it
is not there then it is hard to have a phone ask asterisk to do
something it does not know how to do.

I agree that this feature could be built into the phone firmware, but it
would be different for every phone. Putting it in asterisk provides a
bit of consistency on a feature every business uses every day.

Damon

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> bounces at lists.digium.com] On Behalf Of John Novack
> Sent: Friday, April 14, 2006 2:22 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [Asterisk-Users] attended transfer issue
> 
> 
> 
> Damon Estep wrote:
> 
> >There is some kind of issue with SIP transfer interaction between
some
> SIP phones and asterisk, I have personal experience with Polycom
phones
> not being able to do a blind xfer using the feature key.
> >
> >
> >
> Is that a Polycom or Asterisk defect?
> 
> >We have to use the asterisk # blind xfrer functionality for blind
> >transfers
> >
> >
> 
> >The phones will drop the call if you initiate a transfer with the
> >feature key but do not wait for the remote line to answer before
> >releasing the call. In other words, if you hit transfer on the phone,
> >wait for the remote phone to ring, and hang up, you will drop the
call.
> >
> >
> >
> Not so good.
> Asterisk or Polycom doing that?
> 
> John Novack
> 
> >If you wait for the remote phone to answer (live or voicemail) the
> >transfer will complete.
> >
> >It IS confusing to users to have 2 transfers, # for blind and the
> >feature key for attended.
> >
> >Damon
> >
> >
> >
> >
> >
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