I hear often that it is hard to practice/demo voice related configurations with GNS3. This is only partially true.
It is correct that GNS3 cannot substitute Multiservice routers like 28xx etc because the DSP resources cannot be emulated. For using T1/E1 or FXS/FXO connections you need the real hardware interfaces and of course another PBX/router interface to connect your T1 to. If you have a double T1 you could use a T1 x-over to let the router do both ends.
For all other configurations like Dial-peers, translation patterns, SIP-UA configurations, CME, ephone registrations, CUBE etc, GNS3 can do the job. Just an example…

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CCIE R&S #3891, Senior instructor at Ascolta, CA. Living in MN, TwinCities Metroarea. Teaching CCNP/CCVP/other voice related classes, the primary focus is on Cisco VoIP, specialized in IPCCE, IPCCX. Joined Ascolta in 2007. Prior to coming to Ascolta, I worked for an UK-based European Integrator/Consulting/Training Company. Before my move to the US, I lived in northern Germany.

Related posts:What do you know about Ascolta? Most of my posts are about labs, CCIE news, CCIE…Another Great Announcement from IPexpert IPexpert just made a new announcement. It’s something that I…REVIEW: IPexpert CCIE Security 5-day Bootcamp Well as began typing this I was…

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Studies for the new V3 lab have been underway for a little over a month. Most of this time has been spent reading the CME 7.0 and CUCM 7.0 SRNDs and more specifically, those sections which introduce new features and technologies. A section I have really focused on, reading several times now, is [...]

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Publishers Must Change the Way Authors Get Paid | Publishing Perspectives
An interesting read from my Perspective. You may not find this one very interesting unless you plan on writing something.
(tags: books publishing)

Cisco IOS hints and tricks: Disable flapping BGP neighbors
There are also some links at the bottom of this article that are related to other aspects of BGP. If you are one of my BGP students you should find them useful.
(tags: bgp ccie-r&s ascolta)

Related posts:links for 2009-07-10 How to edit the hosts file in Mac OS…links for 2009-07-29 CCIE Blog » L2 Tunneling…

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Cisco Unity Tools
Came across this while reading the CIPT1 book by Dennis Hartmann. There is much more here than I will need right now since Unity is covered in little detail in CIPT1, however I think its a great resource to have around. Interesting that its kinda "outside" of the Cisco.com domain.
(tags: voice cisco unity ccie voip tools voicemail)

Related posts:links for 2009-08-04 Nerd Vittles » The Wedding Is On: Asterisk and…links for 2009-08-06 Livestation | Watch Live Television Online. I just heard…links for 2009-07-24 Allowing DHCP Option 82 in Cisco DHCP Relay Agents…
Related posts brought…

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Its been a few months since I passed the CCIE Security exam.  Since then I have been working on Voice and R&S but jumping back and forth.  It’s not the study plan I would follow if I had things my way.  Alas, work, family, and study all have to come together in a fine balance for me to acomplish anything.  It took me 2 years and three attempts to pass the Security Lab. The reason it took me so long is because I wasn’t seriously studying for much of that time.  So when people ask me what plan I followed…

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Multi-process Firefox, coming to an Internets near you < Chris Pitchin\' Hey

Related posts:links for 2009-08-01 Lightweight Directory Access Protocol – Wikipedia, the free encyclopedia…links for 2009-05-02 CCIE Voice Written Prep-Part 1. (tags: CCIE-Voice) …links for 2009-05-15 Internetwork Expert (tags: CCIE FrameRelay FRTS) …
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I have been multitasking like a mad man.  When I have the opportunity to do so, I like to use resources that get me right to the point, are of high quality, and are accurate- Even if I have to pay for them.  This brings me to the reason for my post today.  Today I am reaching out to you, the reader.
As I have mentioned in previous posts I am working on the instructor certification for CIPT1.  In order to do so I must of course know the content in and out, which usually means going over the Cisco…

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