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Hi Timothy,<br>
<br>
Thanks for reply.<br>
The regions are set to use G711 between each other.<br>
Audio Parameters are already set to 0x00150015.<br>
<br>
any other idea?<br>
<br>
Thanks<br>
Marcelo<br>
<br>
<br>
Frazee, Timothy escreveu:
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cite="mid:723FA17C6AA4C4428CDF572DCAEE08D408C2C308@EXCHANGEDS01.ds.ad.adp.com"
type="cite">
<pre wrap="">Are the regions that the device pools that the devices configured to use
set to use G.729 between each other?
Fax stuff kinda freaks a little bit when it gets downmixed to G.729. You
can change the Audio Parameters on the ATAs to 0x00150015 to force G.711
all the time
Timothy Frazee
-----Original Message-----
From: <a class="moz-txt-link-abbreviated" href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>
[<a class="moz-txt-link-freetext" href="mailto:cisco-voip-bounces@puck.nether.net">mailto:cisco-voip-bounces@puck.nether.net</a>] On Behalf Of Marcelo Zilio
Sent: Friday, March 13, 2009 10:05 AM
To: <a class="moz-txt-link-abbreviated" href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>
Subject: [cisco-voip] ATA-to-ATA Fax transmission
I have a problem with fax transmissions over WAN.
In the following situation, it doesn't work.
ATA186(1) ---- Router --- IP WAN --- Router --- ATA186(2)
Call is established, users can talk each other, but when fax
transmission starts, it fails.
Both ATAs are using a Region which places calls in G711 codec between
them.
If I transmit fax over PSTN, at the same FAX machines and ATAs, it works
fine.
PSTN --- Router --- ATA186
I've followed this guide to configure passthroug mode.
<a class="moz-txt-link-freetext" href="http://www.cisco.com/en/US/docs/voice_ip_comm/cata/186_188/3_0/english/a">http://www.cisco.com/en/US/docs/voice_ip_comm/cata/186_188/3_0/english/a</a>
dministration/guide/sccp/sccpaapd.html
Am I missing anything or FAX transmissions in ATA-to-ATA scenario
doesn't work?
CallManager 5.1.3
ATA SCCP 3.02.03(051201A)
Thanks
Marcelo
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