The key here is to not discuss this with the switch vendor as a
call-transfer. Discuss it as changing the media stream in mid-dialog
via a reinvite. I they are not forwarding the re-invite, a lot of
stuffs may happen in the RTP stream that will result to a corrupted
audio session.
1. SSRC
ugues Royer
Sent: Tuesday, September 21, 2010 5:53 PM
To: Discussion list for users of sipXecs software
Subject: Re: [sipx-users] REFER vs INVITE for transfers
His first post visible here:
http://forum.sipfoundry.org/index.php?t=msg&th=14230&start=0&S=5f984ee66be7b3320859480cb2bc256b
On 9/21/10 5:53 PM, Jean-Hugues Royer wrote:
His first post visible here:
http://forum.sipfoundry.org/index.php?t=msg&th=14230&start=0&S=5f984ee66be7b3320859480cb2bc256b
Says: "I have an ITSP that is currently battling with a switch vendor on
my behalf, because when we transfer a call from exte
His first post visible here:
http://forum.sipfoundry.org/index.php?t=msg&th=14230&start=0&S=5f984ee66be7b3320859480cb2bc256b
Says: "I have an ITSP that is currently battling with a switch vendor on
my behalf, because when we transfer a call from extension to extension,
we lose audio."
And they
He is not having an issue with audio. He is trying to use sipXbridge between
the ITSP and sipx and cannot because they dont support reinvites at all.
On Tue, Sep 21, 2010 at 5:34 PM, Jean-Hugues Royer wrote:
> I forget to add that in your case, if you are loosing the audio once
> re-invited (tran
I forget to add that in your case, if you are loosing the audio once
re-invited (transfered from your point of view) with an ITSP it usually
means that either you have router that erroneously does SIP ALG and
modifies the IPs inside the re-INVITEs SDPs or that the UDP/RTP packets
can not flow b
You can not do a real call transfer with re-INVITEs.
You can only connect two calls together (more precisely their RTP
stream) temporarily while you maintain the SIP sessions with both calls.
Regards.
Burden, Mike wrote:
OK, the ITSP got a response from the soft-switch vendor:
We ne
I think it is nice that they support it. Do they also support MOH from the
phone and consultative AND blind transfers? They would typically want to
insulate all the types of failure scenarios by letting you use a gateway/sbc
that uses refer locally and inserts its own MOH that will successfully
neg
OK, the ITSP got a response from the soft-switch vendor:
We need to clarify some points in order to be sure that we're on the same
page.
As was previously mentioned by my colleague according to our official
documentation and the list of currently supported RFC (2327, 2543, 3261,
3262, 32
From: sipx-users-boun...@list.sipfoundry.org
[sipx-users-boun...@list.sipfoundry.org] On Behalf Of Burden, Mike
[...@lynk.com]
The switch vendor is pointing out that they are not getting a REFER from us.
This, of course, is because sipXbridge translate
).
>>
>>>
>>>
>>> Anyone in the Grand Rapids, MI metro area with a good resume looking for
>>> an opportunity with a small company with growth potential? :)
>>>
>>>
>>>
>>> [image: cid:image001.jpg@01C85750.45790B60]
>>>
>
mage: Lynk.gif]*
> Lynk Systems, Inc*
>
> * e-mail:* m...@lynk.com
>
> * Phone:* 616-532-4985
>
>
>
>
>
>
>
>
> *From:* Tony Graziano [mailto:tgrazi...@myitdepartment.net]
> *Sent:* Tuesday, August 31, 2010 11:37 AM
> *To:* Burden, Mike
> *Cc:*
k.com>
Phone: 616-532-4985
From: Tony Graziano [mailto:tgrazi...@myitdepartment.net]
Sent: Tuesday, August 31, 2010 11:37 AM
To: Burden, Mike
Cc: sipx-users
Subject: Re: [sipx-users] REFER vs INVITE for transfers
I don't know of a way to do that unless you use an independent SBC instead
I don't know of a way to do that unless you use an independent SBC instead
of sipxbridge and tell it to allow REFER for that dialplan/trunk (provider).
At the same time I don't see how it would be desirable to introduce that
into sipxbridge (enable/disable refer).
I am assuming your ITSP is a res
Good morning,
I have an ITSP that is currently battling with a switch vendor on my behalf,
because when we transfer a call from extension to extension, we lose audio.
The switch vendor is pointing out that they are not getting a REFER from us.
This, of course, is because sipXbridge translates
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