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List: cisco-voip
Subject: Re: [cisco-voip] DTMF Relay Problem
From: Nikola Stojsin <nikolas () networkmakers ! com>
Date: 2010-12-27 11:43:53
Message-ID: 01ad01cba5bb$56f9ccf0$04ed66d0$ () att ! net
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Hello Guys -
Sorry about that - it transpired that ISP has misconfigured DTMF-relay on
their on-site router.
Thank you, as always,
Nikola
-------------------------------------------
Nikola Stojsin
PhD CCIE #12888
<mailto:nikolas@networkmakers.com> nikolas@networkmakers.com
http://www.networkmakers.com
-------------------------------------------
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Nikola Stojsin
Sent: Sunday, December 26, 2010 11:32 AM
To: cisco-voip@puck.nether.net
Cc: nikola@att.net
Subject: [cisco-voip] DTMF Relay Problem
Hello Guys -
I am having a problem with a small office that has just moved to a new
location/circuit; it runs CallManager 4.3.x and Unity 4.2.1 (to be upgraded
in a couple of months!), with a Cisco 2811 as a MGCP gateway with a single
PRI.
In their old location, they ran on a regular smartjack PRI without any
issues; now they are on a flexible circuit (6 bonded T1s, via ISP's on-site
3845), which still provides a PRI interface. Everything works fine, apart
from a DTMF relay problem on calls from PSTN. Basically, I am seeing
duplicate DTMF entries in the Port Status Monitor - in other words, if
someone pressess 9892, the port monitor shows 9988992; and then, after about
five to seven seconds, or a forward to a subhandler, no DTMFs are being
forwarded at all. (Incidentally, the same company has two more locations
with the same type of flexible circuit - with no problems whatsover.)
Now, I have checked CSCso87127, and have upgraded gateway's IOS to
12.4(15)T14; DMTF relay is set up for out-of-band in the MGCP configuration.
I am considering switching the gateway to H323 - and have opened a trouble
ticket with the ISP.
Has anyone seen this behavior before and/or has a suggestion?
Thank you, as always,
Nikola
P. S.: Happy holidays to everyone!
-------------------------------------------
Nikola Stojsin
PhD CCIE #12888
<mailto:nikolas@networkmakers.com> nikolas@networkmakers.com
http://www.networkmakers.com
-------------------------------------------
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class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Hello Guys \
–<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>Sorry about that – it transpired that ISP has \
misconfigured DTMF-relay on their on-site router…<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>Thank you, as \
always,<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>Nikola<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>-------------------------------------------<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>Nikola Stojsin<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>PhD CCIE #12888<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'><a \
href="mailto:nikolas@networkmakers.com"><span \
style='color:#1F497D'>nikolas@networkmakers.com</span></a><o:p></o:p></span></p><p \
class=MsoNormal><span \
style='color:#1F497D'>http://www.networkmakers.com<o:p></o:p></span></p><p \
class=MsoNormal><span \
style='color:#1F497D'>-------------------------------------------<o:p></o:p></span></p></div><p \
class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div \
style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p \
class=MsoNormal><b><span \
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span \
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> \
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On \
Behalf Of </b>Nikola Stojsin<br><b>Sent:</b> Sunday, December 26, 2010 11:32 \
AM<br><b>To:</b> cisco-voip@puck.nether.net<br><b>Cc:</b> \
nikola@att.net<br><b>Subject:</b> [cisco-voip] DTMF Relay \
Problem<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p \
class=MsoNormal><span style='color:#1F497D'>Hello Guys \
–<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>I am having a problem with a small office that has just moved \
to a new location/circuit; it runs CallManager 4.3.x and Unity 4.2.1 (to be upgraded \
in a couple of months!), with a Cisco 2811 as a MGCP gateway with a single \
PRI.<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>In their old location, they ran on a regular smartjack PRI \
without any issues; now they are on a flexible circuit (6 bonded T1s, via ISP’s \
on-site 3845), which still provides a PRI interface. Everything works fine, apart \
from a DTMF relay problem on calls from PSTN. Basically, I am seeing duplicate DTMF \
entries in the Port Status Monitor – in other words, if someone pressess 9892, \
the port monitor shows 9988992; and then, after about five to seven seconds, or a \
forward to a subhandler, no DTMFs are being forwarded at all. (Incidentally, the same \
company has two more locations with the same type of flexible circuit – with no \
problems whatsover.)<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>Now, I have checked CSCso87127, and have upgraded \
gateway’s IOS to 12.4(15)T14; DMTF relay is set up for out-of-band in the MGCP \
configuration. I am considering switching the gateway to H323 – and have opened \
a trouble ticket with the ISP.<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>Has anyone seen this behavior before and/or has a \
suggestion?<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>Thank you, as always,<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>Nikola<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>P. S.: Happy holidays to \
everyone!<o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'>-------------------------------------------<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>Nikola Stojsin<o:p></o:p></span></p><p \
class=MsoNormal><span style='color:#1F497D'>PhD CCIE #12888<o:p></o:p></span></p><p \
class=MsoNormal><a href="mailto:nikolas@networkmakers.com"><span \
style='color:#1F497D'>nikolas@networkmakers.com</span></a><span \
style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span \
style='color:#1F497D'><a \
href="http://www.networkmakers.com">http://www.networkmakers.com</a><o:p></o:p></span></p><p \
class=MsoNormal><span \
style='color:#1F497D'>-------------------------------------------<o:p></o:p></span></p><p \
class=MsoNormal><o:p> </o:p></p></div></body></html>
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