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<font face="Times New Roman">Hi Alex,<br>
during call setup, 7942 shows ilbc and 7941 shows g711 as codecs.<br>
As soon as someone picks up the phone the conversation is in g729.<br>
So, there is no way to talk in ilbc between 2 regions even if a have
transcoders?<br>
But that why a transcoder is needed; to join 2 devices that cannot
support the same codecs.<br>
And why does the voice gateway uses the transcoder?<br>
<br>
Thanks<br>
Anthony<br>
</font><br>
Alex wrote:
<blockquote cite="mid:BLU138-DAV322AFDF363E2F8120E17EA5010@phx.gbl"
type="cite">
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<div><font color="#000000" face="Courier New" size="2">I'll give it a
stab.</font></div>
<div><font color="#000000" face="Courier New" size="2">Device A/7941
and Device B/7942 share 2 common codecs: G.711 and G.729a.</font></div>
<div><font color="#000000" face="Courier New" size="2">Your region
config as described below allows iLBC as MAX codec BW (max BW per call
== 24 kbps, see <a moz-do-not-send="true"
href="http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/6_0_1/ccmcfg/b02regio.html#wp1055534">http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/6_0_1/ccmcfg/b02regio.html#wp1055534</a>)</font></div>
<div><font color="#000000" face="Courier New" size="2">The transcoder
does not get invoked between 2 IP phones in the same cluster if
they share a common codec.</font></div>
<div><font color="#000000" face="Courier New" size="2">As to why iLBC
shows in call stats, I have no idea - it should not as 7941 does not
support iLBC.</font></div>
<div><font color="#000000" face="Courier New" size="2">Rgds</font></div>
<div><font color="#000000" face="Courier New" size="2">Alex</font></div>
<blockquote
style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;">-----
Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>From:</b>
<a moz-do-not-send="true" title="akoul@dataways.gr"
href="mailto:akoul@dataways.gr">Anthony Kouloglou</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>To:</b>
<a moz-do-not-send="true" title="burns.jason@gmail.com"
href="mailto:burns.jason@gmail.com">Jason Burns</a> </div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Cc:</b>
<a moz-do-not-send="true" title="cisco-voip@puck.nether.net"
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>
</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Sent:</b>
Monday, December 01, 2008 2:53 PM</div>
<div
style="font-family: arial; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><b>Subject:</b>
[cisco-voip] g729 is used instead of iLBC</div>
<div><br>
</div>
<font face="Times New Roman">Hi all,<br>
i really can't understand this behavior:<br>
<br>
</font><font face="Times New Roman">Phone A (7941) is in device
pool A which has region A. <br>
Registered IOS Enhanced Transcoder has device pool A and is configured
for iLBC.(It is physically located at site A)<br>
<font color="#cc0000">There is no media resource group or list
configured in all the cluster.</font> So all the resources are shared
equally upon request i guess.<br>
<br>
Phone B (7942) is in device pool B which has region B. (another siteB)<br>
<font color="#cc0000">Region A<-> Region B has iLBC
configured.</font><br>
Hub_none location is configured in device_pool A.<br>
Location B has 80kbps configured and is lossy configured versus
hub_none.<br>
Location B is in device pool B<br>
<br>
Phone A can talk with phone B whoever calls the other.<br>
When A calls B or B calls A before the other answers the call, ilbc is
shown in call statistics.<br>
<font color="#cc0000">When the call setup is finished and they
talk, the codec on both ends is g729!</font>!! I have nowhere
configured g729 in any region!! how is this possible?<br>
Also, phone B calls through the voice gateway in site A and through
PSTN. The codec from phone B to router is iLBC!!<br>
Also, phone B calls a trunk configured in site A and listens to
voice-mail. The call is also iLBC!<br>
Voice gateway/trunk has the same settings as the phone A (that is: a
device pool A and MRGL none.<br>
</font><font face="Times New Roman">So i guess, the transcoder is
working fine.<br>
<br>
What am i missing?<br>
Why can't the two phones talk in ilbc? 7941 can't use the transcoder
which is in the same site?<br>
<br>
Thanks<br>
Anthony<br>
</font><br>
<br>
<p> </p>
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