The only page I found on UM is http://wiki.freeswitch.org/wiki/Exchange_2007_UM
and even there it’s stated “bypass_media_true was used because DTMF
was not interpreted by FreeSWITCH (bug ?)” so I guess they couldn’t
make it work as well.
In a working scenario (using SJPhone) the Event
Duration starts from 0 (in the first packet) and then 160, 320, 480 and so
forth until three identical packets of 2280. In the non-working scenario (no
pass though), it’s exactly the same but without the first packet of Event
Duration 0.
From:
freeswitch-users-bounces@lists.freeswitch.org
[mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Brian West
Sent: Sunday, June 29, 2008 6:02
AM
To:
freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users]
Exchange 2007 UM - DTMF problem
Starting at zero means forever doesn't it?
/b
On Jun 28, 2008, at 2:32 PM, Michael Jerris wrote:
It is an rfc violation to start at 0. Thats a bug in your other
device. In regards to the volume, it should not matter, we set it based
on what we had seen on a lot of other devices, we should probably make that
pass through in the same way we do duration. I doubt either of these
is the problem. Take a closer look at the pt used for 2833 compared to
what we negotiated, see if anything is amiss there. We have had
people successfully interop with exchange before, if they could chime
in, also, check the wiki as there is a page there.
Mike
On Jun 28, 2008, at 3:19 PM, UV wrote:
We’re almost done testing the
(initial) interoperability between Freeswitch and the Exchange 2007
Unified-Messaging server. I’ll be happy to share our conclusions once
we’re done.
I have a couple of questions in this
regards:
I’ve noticed the FS RFC2833 DTMF
doesn’t work. It does work once the call placed in either bypass_media or
pass-rfc2833. I’ve found the difference between the two scenarios was in
the “RFC 2833 RTP Event” payload:
Working scenario: Event Duration starts
from 0
Non-working scenario: Event Duration
starts from 160.
Is that by design or a bug? If by design,
how do I change that so the FS will start from 0?
I’ve also found the Volume
setting’s different: on FS it’s hardcoded 7 (/src/switch_rtp.c,
line 1047: “rtp_session->dtmf_data.out_digit_packet[1] = 7”).
Other devices usually use 10. Any reason for that number? Just curious.
Cheers,
UV
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