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<DIV dir=ltr align=left><SPAN class=145063813-13102008><FONT face=Arial
color=#0000ff size=2>I was doing some work on this Friday and there is
definitely some noise generated in-band by sccp phones on 8.4(1). If you
take a packet capture and listen to the audio it sounds like a "blurp" sound
(very technical, I know) every time you press a dtmf digit. I think
what is happening is that this combined with the in-band dtmf generated by the
gateway (dtmf should be out of band from phone to cucm to the gateway) can cause
all kinds of wierd problems on the receiving end. </FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=145063813-13102008>I'm
digging now to see if there's a bug already opened. If not there will be
one by the end of the day.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV><!-- Converted from text/plain format -->
<P><FONT size=2>-Ryan </FONT></P>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] <B>On Behalf Of </B>Nick
Thompson<BR><B>Sent:</B> Sunday, October 12, 2008 10:15 PM<BR><B>To:</B> Scott
Voll; James Buchanan<BR><B>Cc:</B> Dave_Landsiedel@bobcat.com; cisco
voip<BR><B>Subject:</B> Re: [cisco-voip] What would cause DTMF not to go
through<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
am also running into some DTMF issues at an installation I am currently doing
utilizing 7962s on the latest firmware (SCCP42.8-4-1SR1S) as well as 7942s on
firmware SCCP42.8-4-1SR1S. However, I am using MGCP on my gateways.
I’ve got various users running into issues with unrecognized digits,
multiple digit presses, among other things. I’m actually glad to see a few
others are having this issue as the reports at this install have been popping up
a little more often.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Has
anybody tried a downgrade of the phone firmware?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Thanks.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #1f497d; FONT-FAMILY: Consolas">Nick
Thompson<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #1f497d; FONT-FAMILY: Consolas">Senior Network
Engineer<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #1f497d; FONT-FAMILY: Consolas">Corporate
Technologies, LLC<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #1f497d; FONT-FAMILY: Consolas">E-Mail: <A
href="mailto:nick.thompson@gocorptech.com"><SPAN
style="COLOR: blue">nick.thompson@gocorptech.com</SPAN></A><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10.5pt; COLOR: #1f497d; FONT-FAMILY: Consolas"><A
href="http://www.gocorptech.com/"><SPAN
style="COLOR: blue">http://www.gocorptech.com/</SPAN></A><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net]
<B>On Behalf Of </B>Scott Voll<BR><B>Sent:</B> Thursday, October 09, 2008 3:25
PM<BR><B>To:</B> James Buchanan<BR><B>Cc:</B>
cisco-voip-bounces@puck.nether.net; Dave_Landsiedel@bobcat.com; cisco
voip<BR><B>Subject:</B> Re: [cisco-voip] What would cause DTMF not to go
through<o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<DIV>
<P class=MsoNormal>more wide spread. They are G711, but thus far it's just
one location (multiple users) but they are the only ones that are using 7962
phones and firmware <A href="http://8.4.1.">8.4.1.</A> Also. I see a
bunch of bugs for DTMF but they are all related to SIP / CTI but these users are
not using either of those.<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>Any more ideas?<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt">Scott<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>On Tue, Oct 7, 2008 at 12:05 PM, James Buchanan <<A
href="mailto:jbuchanan@ctiusa.com">jbuchanan@ctiusa.com</A>>
wrote:<o:p></o:p></P>
<DIV>
<DIV>
<P><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d">The rtp-nte is used typically
for SIP trunks. H245-alphanumeric is what you would typically use. Have you
determined this to be for one specific user or is it more
widespread?</SPAN><o:p></o:p></P>
<P><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d"> </SPAN><o:p></o:p></P>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P><B><SPAN style="FONT-SIZE: 10pt">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt"> <A href="mailto:cisco-voip-bounces@puck.nether.net"
target=_blank>cisco-voip-bounces@puck.nether.net</A> [mailto:<A
href="mailto:cisco-voip-bounces@puck.nether.net"
target=_blank>cisco-voip-bounces@puck.nether.net</A>] <B>On Behalf Of </B>Scott
Voll<BR><B>Sent:</B> Tuesday, October 07, 2008 2:01 PM<BR><B>To:</B> <A
href="mailto:Dave_Landsiedel@bobcat.com"
target=_blank>Dave_Landsiedel@bobcat.com</A><BR><B>Cc:</B> <A
href="mailto:cisco-voip-bounces@puck.nether.net"
target=_blank>cisco-voip-bounces@puck.nether.net</A>; cisco
voip<BR><B>Subject:</B> Re: [cisco-voip] What would cause DTMF not to go
through</SPAN><o:p></o:p></P></DIV>
<DIV>
<DIV>
<P> <o:p></o:p></P>
<DIV>
<DIV>
<P>H323<o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P>What's the difference between <o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P> dtmf-relay h245-alphanumeric<o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P>and <o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P>dtmf-relay rtp-nte h245-alphanumeric <o:p></o:p></P></DIV>
<DIV>
<P>??<o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P>CMM blade with IOS 12.4(15)T4<o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P>Thanks<o:p></o:p></P></DIV>
<DIV>
<P> <o:p></o:p></P></DIV>
<DIV>
<P style="MARGIN-BOTTOM: 12pt">Scott<o:p></o:p></P></DIV>
<DIV>
<P>On Tue, Oct 7, 2008 at 11:09 AM, <<A
href="mailto:Dave_Landsiedel@bobcat.com"
target=_blank>Dave_Landsiedel@bobcat.com</A>> wrote:<o:p></o:p></P>
<P><BR><SPAN style="FONT-SIZE: 10pt">If using dial peer voice voip via a H323
gateway make sure you have the following line in that dial peer.</SPAN>
<BR><BR><SPAN style="FONT-SIZE: 10pt"> dtmf-relay rtp-nte
h245-alphanumeric</SPAN> <BR><SPAN
style="FONT-SIZE: 10pt"> <BR></SPAN><SPAN
style="COLOR: #004080">_________________________________</SPAN>
<o:p></o:p></P></DIV>
<P> <o:p></o:p></P></DIV></DIV></DIV></DIV></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV></DIV></BODY></HTML>