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<div class=Section1>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Colton</span></font></st1:City></st1:place><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> – as I cannot quite discern who you work for – nor can
I find you on LinkedIn… if you could provide some additional details
about the size/scope/nature of your network – I’ll be in a much
better position to advise you as to the optimal route forward.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In parallel – some additional data
points for you here:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<ol style='margin-top:0in' start=1 type=1>
<li class=MsoNormal style='color:navy;mso-list:l2 level1 lfo3'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial'>SQmediator
is a modular application - available in both single server (all in one)
and multi-server variants. The entry level package is extremely
economically priced at <$10k and scales from there according to the
amount/type of traffic that is pumped through the system.<o:p></o:p></span></font></li>
<li class=MsoNormal style='color:navy;mso-list:l2 level1 lfo3'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial'>SQmediator
and any associated active/passive probes are available under both CapEx
and OpEx models to help defray up front costs and right size your fiscal
exposure.<o:p></o:p></span></font></li>
</ol>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>While I am not an expert in VoIP Monitor
functionality – while I do believe they support the ingestion of rfc3611
(RTCP-XR) data - I just scoured the ‘Net as well as their website (and
all of their product documentation) looking for 6035 or SIP Publish report
support… didn’t find any mention of this functionality being
supported in their kit, let alone all of the call leg correlation/display,
proactive real-time alerting, and security measures that are provided in
SQmediator. I’m sure you know that you’ll much more readily
find support for 6035 in endpoint and midstream devices – rather than XR
which requires probes be installed along the media path to consume the data
generated by endpoints.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In addition – YES – providers
very typically monitor WAN CPE using rfc6035 messaging to shuttle performance
information up to SQmediator. It’s an excellent way to effectively
bisect the solution space and isolate customer LAN performance via a 2<sup>nd</sup>
demarcation point @ the WAN / LAN interconnect and then use something like
SQmediator to correlate those data sources and show all this information on a
single pane of glass. They also typically install a single copy of
SQprobe next to their call signaling platform to extract SIP signaling info
which is then correlated inside SQmediator and presented in that same pane of
glass to provide insight into the associated call setup and teardown.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If you’d like – we can
schedule a half hour product demonstration so you can see this all first hand
and get a better appreciation for how all of the underlying components come
together to form a total solution.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-anthony<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Colton Conor
[mailto:colton.conor@gmail.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, November 11, 2014
9:57 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Anthony Caiozzo<br>
<b><span style='font-weight:bold'>Cc:</span></b> voiceops@voiceops.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [VoiceOps] CPE side
Passive Monitoring</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Anthony,<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>That you for the information. Sounds like you have a solid product to
say the least. We do buy the VQMon license from Polycom on the VVX line,
however I don't beleive we have any server to collect/report on these metrics
at this time. I will look into </span></font><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'> SQmediator,
but I assume it is too expensive for our small shop. </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>My question is can you use a Polycom with
the VQM license installed to report back to something like <a
href="http://voipmonitor.org">voipmonitor.org</a> software? Accoring to
Polycom's website:</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p style='margin:0in;margin-bottom:.0001pt;line-height:14.25pt;vertical-align:
baseline;font-stretch:inherit'><font size=2 color="#404040" face=Arial><span
style='font-size:10.5pt;font-family:Arial;color:#404040'>With Polycom
Productivity Suite Application: Voice Quality Monitoring, IT Managers can
monitor and troubleshoot voice quality issues more quickly.<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
7.5pt;margin-left:26.25pt;text-indent:-.25in;line-height:14.25pt;mso-list:l0 level1 lfo5;
vertical-align:baseline'><![if !supportLists]><font size=2 color="#404040"
face=Symbol><span style='font-size:10.0pt;font-family:Symbol;color:#404040'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 color="#404040"
face=inherit><span style='font-size:10.5pt;font-family:inherit;color:#404040'>Transmit
metrics in real time, or near real time, directly from the phone in the
standard RTCP-XR (IETF RFC 3611) format<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
7.5pt;margin-left:26.25pt;text-indent:-.25in;line-height:14.25pt;mso-list:l0 level1 lfo5;
vertical-align:baseline'><![if !supportLists]><font size=2 color="#404040"
face=Symbol><span style='font-size:10.0pt;font-family:Symbol;color:#404040'><span
style='mso-list:Ignore'>·<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><font size=2 color="#404040"
face=inherit><span style='font-size:10.5pt;font-family:inherit;color:#404040'>Publish
metrics using the SIP PUBLISH method<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 color="#404040" face=Arial><span
style='font-size:10.5pt;font-family:Arial;color:#404040'>So if VoipMonitor.org
supports RTCP-XR or SIP PUBLISH they should be able to supports
stats collected on the Polycom right?</span></font><o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color="#404040" face=Arial><span
style='font-size:10.5pt;font-family:Arial;color:#404040'>I guess to make this
even more complicated, do providers monitor the WAN CPE router (like an Adtran
908e) in addition to the phones themselves (Polycom VVX for
instance)? </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Mon, Nov 3, 2014 at 9:22 PM, Anthony Caiozzo <<a
href="mailto:anthony.caiozzo@telchemy.com" target="_blank">anthony.caiozzo@telchemy.com</a>>
wrote:<o:p></o:p></span></font></p>
<div link=blue vlink=blue>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><st1:City
w:st="on"><st1:place w:st="on"><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Colton</span></font></st1:place></st1:City><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> – yes – that’s exactly what I’m saying.
</span></font><font size=2 color=navy face=Wingdings><span
style='font-size:10.0pt;font-family:Wingdings;color:navy'>J</span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> See <a href="http://www.telchemy.com/partners.php"
target="_blank">www.telchemy.com/partners.php</a> for a full listing of
companies that have released product that incorporate our <a
href="http://www.telchemy.com/vqmon.php" target="_blank">VQmon</a> engine for
MOS scoring/stats generation. VQmon is the only industry solution that
complies with or fully supports ITU-T P.564, G.107, ETSI TS101329-5 Annex E,
RFC 3611 (RTCP-XR), RFC 6035 (SIP PUBLISH/NOTIFY). Most other competing
products in industry leverage a straight ITU-T G.107 E-model implementation
which a) doesn’t correlate well to true subjective opinion b)
doesn’t support the 150+ codecs and their variants that VQmon does c)
doesn’t typically provide intra-call reports d) doesn’t handle
wideband and super-wideband codec measurements e) doesn’t support the
analysis of video (e.g. conferencing or IPTV) like VQmon can/does. It is
extremely well regarded and enthusiastically trusted by carriers (and large
enterprise) worldwide, is the de facto industry standard and has almost 200M
units deployed to date.</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>While I can imagine there are open source based providers using
VoIP Monitor… most commercial carriers that leverage COTS product
leverage Telchemy technology in some way, shape or form via the 200+ technology
licensees in our partner portfolio – or work with us directly to deploy
additional complementary system elements (e.g. SQmediator w/Polycom). In
addition, please note that our products are not built and supported through an
open source community but rather conventionally developed (entirely in-house),
sold both direct as well as through a network of distributors/resellers, are
deployed in just about every single major carrier environment and are both
built and supported by a first rate development team. This is due to the
immense amount of technical knowledge and expertise required to develop and
support the underlying measurement technologies, as well as the active test and
passive analysis systems products that make extensive use of VQmon. </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>As you’ve noted, Polycom (as well as many other soft and hard
handset vendors) include VQmon with their products. Some include this
functionality as a default option with the device, others charge a nominal fee
to access the power contained within. Polycom actually has a dual pronged
approach, whereby they separately license the functionality on the lower end
300/400 VVX platforms, while on the more fully featured 500/600 VQmon is
included by default. In all cases, VQmon needs to be active / operational
on the platform in order to enable statistics generation and subsequent
collection / SIP publishing to platforms like SQmediator.</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Lots of technology / terminology contained above – let me
know if it sparks any additional questions.</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>-anthony</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:
bold'>From:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> Colton Conor [mailto:<a
href="mailto:colton.conor@gmail.com" target="_blank">colton.conor@gmail.com</a>]
<br>
<b><span style='font-weight:bold'>Sent:</span></b> Sunday, November 02, 2014
12:08 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Anthony Caiozzo<br>
<b><span style='font-weight:bold'>Cc:</span></b> <a
href="mailto:voiceops@voiceops.org" target="_blank">voiceops@voiceops.org</a></span></font><o:p></o:p></p>
<div>
<div>
<p class=MsoNormal><font size=3 face=Tahoma><span style='font-size:12.0pt;
font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [VoiceOps] CPE side
Passive Monitoring</span></font><o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Anthony,<o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>So are you saying
Adtran's VQM or Edgewaters and everyone elses is really your embedded engine? I
know alot of opensource providers are using VoIPMonitor as a solution. I
believe this software collects stats form devices like Polycom Phones that use
your software.<o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>I have notices
that Polycom sells each phone with Voice QM enabled for a dollar or two more. I
assume you need this license to enable stats collection? <o:p></o:p></span></font></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>On Wed, Oct 29,
2014 at 9:57 PM, Anthony Caiozzo <<a
href="mailto:anthony.caiozzo@telchemy.com" target="_blank">anthony.caiozzo@telchemy.com</a>>
wrote:<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'>Chiming in from
the vendor perspective here... Telchemy manufactures a<br>
variety of embedded and non-embedded applications that are focused on<br>
measuring voice, video and other real-time service application performance.<br>
<br>
<br>
Our VQmon software is the de facto industry standard, is P.564 Class 1<br>
compliant and serves as the cornerstone for many industry products that<br>
feature MOS scoring and associated diagnostics, such as Adtran (mentioned by<br>
Jay below) as well as Edgewater, Polycom, Cisco and a wealth of network<br>
measurement / management tools and applications. A full list of vendors<br>
with products currently shipping can be found on our website -<br>
<a href="http://www.telchemy.com/partners.php" target="_blank">http://www.telchemy.com/partners.php</a>.<br>
<br>
There are typically three methods employed to measure/report on call/session<br>
quality:<br>
<br>
1. Measure live call quality @ the endpoint - typically achieved with an<br>
embedded performance analysis model (VQmon) baked into the device.<br>
Here's pointer to a joint solutions guide<br>
(<a
href="http://community.polycom.com/polycom/attachments/polycom/technology-partner%0d%0as/12/1/Telchemy-SQmediatorSolution%20Guide_01082013.pdf"
target="_blank">http://community.polycom.com/polycom/attachments/polycom/technology-partner<br>
s/12/1/Telchemy-SQmediatorSolution%20Guide_01082013.pdf</a>) that covers how we<br>
measure and report on EOL performance with Polycom, though there are a<br>
number of other IP endpoint vendors that support the rfc6035 distributed<br>
reporting model. The benefit of this approach is being able to account
for<br>
all impairments that affect your customer experience - but the downside is<br>
that sometimes you're measuring things (e.g. LAN performance) that you're<br>
not directly responsible for or have no control over. However - at the
end<br>
of the day - being able to understand what the net effect is of the total IP<br>
connection can certainly be of immense value.<br>
<br>
2. Measure call quality @ the WAN demarcation point - typically achieved<br>
with:<br>
a) a hardware probe (<a
href="http://www.telchemy.com/appliances.php" target="_blank">http://www.telchemy.com/appliances.php</a>)<br>
passively analyzing live customer traffic - providing full call setup,<br>
teardown and media quality metrics<br>
b) a software probe running on customer provided
hardware<br>
(<a href="http://www.telchemy.com/sqprobe.php" target="_blank">http://www.telchemy.com/sqprobe.php</a>)
passively analyzing live customer<br>
traffic - providing full call setup, teardown and media quality metrics<br>
c) an active test agent (<a
href="http://www.telchemy.com/dvqattest.php" target="_blank">http://www.telchemy.com/dvqattest.php</a>)<br>
generating synthetic voice, video and data transactions to create a profile<br>
of application performance and serve as a test head that can both probe the<br>
carrier network as well as the local LAN for real-time, proactive diagnostic<br>
purposes.<br>
<br>
Recalling that Kris was looking for a tool that enabled him to isolate WAN<br>
performance - it sounds as if our hardware/software probe line would make<br>
most sense for his application though collecting performance information<br>
from EOL devices certainly provides useful diagnostic information when one<br>
needs to provide empirical data as to which side of the WAN connection is<br>
causing the issue.<br>
<br>
Questions? Happy to help however I can.<br>
<br>
-anthony<br>
<font color="#888888"><span style='color:#888888'><br>
<br>
Anthony Caiozzo<br>
Telchemy - <a href="http://www.telchemy.com" target="_blank">www.telchemy.com</a><br>
m: <a href="tel:617-312-5189" target="_blank" value="+16173125189">617-312-5189</a>
f: <a href="tel:678-387-3008" target="_blank" value="+16783873008">678-387-3008</a><br>
e: <a href="mailto:anthony.caiozzo@telchemy.com" target="_blank">anthony.caiozzo@telchemy.com</a><br>
support: 1-866-TELCHEMY<br>
Skype: acaiozzo</span></font><o:p></o:p></span></font></p>
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-----Original Message-----<br>
From: VoiceOps [mailto:<a href="mailto:voiceops-bounces@voiceops.org"
target="_blank">voiceops-bounces@voiceops.org</a>] On Behalf Of Jay<br>
Hennigan<br>
Sent: Wednesday, October 29, 2014 12:36 PM<br>
To: <a href="mailto:voiceops@voiceops.org" target="_blank">voiceops@voiceops.org</a><br>
Subject: Re: [VoiceOps] CPE side Passive Monitoring<br>
<br>
On 10/29/14, 3:45 AM, Kris Alberts wrote:<br>
> Hi<br>
><br>
> Looking for a cost effective, easily deployed, useful passive monitoring<br>
> probe to be deployed at the customer prem for voip traffic monitoring.<br>
> My main objective is to reduce MTTR and provide a clear demarcation<br>
> service for customers that supplies their own LAN. We use a variety of<br>
> CPE device (primarily Cisco though) so I will need to find an external<br>
> hardware probe that caters for all use cases.<br>
><br>
> There seems to be a variety of solutions available so was hoping you<br>
> could share you experience on some of the solutions that you are using.<br>
> I really need to understand the extent to which the added visibility<br>
> optimised your product in terms of better support, fewer truck rolls<br>
> etc. All of these listed products claims to do just that.<br>
<br>
We use the Adtran TA900 series as a demarcation point, they are a very<br>
versatile SIP toolbox with huge feature set. They also do voice quality<br>
monitoring, can do packet capture, and can (but aren't required to)<br>
interface with Adtran's N-Command central server that can store<br>
historical data, back up configurations, etc.<br>
<br>
This isn't passive, but it provides very good monitoring in addition to<br>
PRI conversion, analog drops, SIP proxy, etc.<br>
<br>
--<br>
Jay Hennigan - CCIE #7880 - Network Engineering - <a
href="mailto:jay@impulse.net" target="_blank">jay@impulse.net</a><br>
Impulse Internet Service - <a href="http://www.impulse.net/"
target="_blank">http://www.impulse.net/</a><br>
Your local telephone and internet company - <a href="tel:805%20884-6323"
target="_blank" value="+18058846323">805 884-6323</a> - WB6RDV<br>
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