Author: DrVoIP

Peter S. Buswell (aka DrVoIP) is a rare blend of C-level executive leadership and deep technical expertise in telecommunications and cloud infrastructure. With a career that began at AT&T in 1970, he has founded and led multiple industry-defining companies, including Dextr.Cloud—acquired by AWS Global Partner CloudHesive. Peter has held senior roles at firms like Exxon Enterprises, Intervoice/Brite, and Franklin Telecommunications, and has consistently driven innovation from traditional PBX to Amazon Connect cloud deployments. A hands-on architect with certifications from Cisco (CCNP/CCDP, UCCX/UCCE) and AWS (Solutions Architect, Developer, SysOps), he combines strategic vision with engineering precision. Known as DrVoIP, he continues to bridge the gap between enterprise goals and technical execution in today’s evolving cloud communications landscape.

VPN’s and VoIP – Getting economical “full mesh” Connectivity without MPLS!

Posted on by DrVoIP

We see a lot of VoIP deployments that come to us for trouble shooting.  A common problem statement is that our HQ site can call both Chicago and Dallas, but Dallas and Chicago can’t call each other.  Savvy network administrator will have figured out that there is a routing issue, but how so?  Clearly HQ knows how to reach each remote site and the remote sites know how to reach HQ, so where is the break down!   At about this time, we learn they have VPN’s that provide tunnel connections to each location and we go clear!

The standard “tunnel” solutions include IP Security (IPSec), GRE, Easy VPN and the new “tunneless” Group Encrypted Transport VPN or  GET-VPN. Most folks make the mistake of picking IPSec for connectivity and being an inherently point-to-point technology, they end up with the problem statement summarized above.   Even a “hub and spoke” solution is not ideal unless we make it possible for “spoke to spoke” connectivity.   Ideally, we need to configure our VPN so Dallas can communicate with Chicago, without passing through HQ!

IPsec is really an encryption and authentication technology that enable secure communications through a public internet.  It is generally used in a multiple vendor deployments.   IPsec does not support any protocol other than IP,  so it can not be used with the routing protocols that might otherwise be used to solve our issue.   For this reason, many deployments will use GRE over IPsec.   GRE to address the routing protocol issues and the  IPsec to provide the security of authentication and encryption.  We are still however, in a point to point mode, or in heavy manual administration mode to configure a simple mesh!

The smart money is on “next hop resolution protocol or NHRP” used in strategies like FlexVPN, GETVPN or DMVPN.  These solutions provide a full mesh option while providing for encryption and data integrity.   In the problem statement above, had we installed FlexVPN, the Chicago and Dallas sites could communicate directly without having to route through HQ or hub.   We would have “spoke to spoke”  to communications!  As broadband becomes more widely accepted and bandwidth becomes less of an issue, we should see more VPN technology deployed in place or in concert with private network technologies like MPLS (GetVPN over MPLS is really kool).

Give us a call and we can noodle out what “full mesh” technology makes the most sense for your organization, both technically and economically!  We are here to help make the network!

 

ShoreTel SIP Trunk Configuration – Version 14 update Part 1

Posted on by DrVoIP

Our older posts on this subject are getting a bit dated and an update is long over due.   ShoreTel has been using a version of SIP since day one.  We say a version of SIP because at the formation of ShoreTel, SIP standards had not yet been solidified.   ShoreTel SIP, therefor, was not interoperable nor did it need to be.   Our fist experience with ShoreTel was Version 3.1  back in 2001!    At that time, ShoreTel did not yet support IP phones, but ShoreTel SIP was and continues to be the call setup protocol used between ShoreGear switches.

Though ShoreTel introduced IP Phones in Version 4 with the private labeling of Polycom handsets, ShoreTel SIP for desktop devices did not become available until Version 8.   This early version of the SIP protocol required you to configure the first version of the IP8000 as a SIP trunk not a SIP Extension.  It was a step in the right direction, but it was not until V13 that we got a version that was more compatible with other SIP devices and not until Version 14 before we reached PRI parity on SIP trunks with the introduction of media termination points.

SIP in general is relatively simple to configure and mirrors most of the steps you take to implement a normal TDM Trunk Group.   The devil, however is in the details!  IP profiles, NAT, firewall, Digest Authentication and Carrier particulars need to be mapped out.   Generally, a Session Border Controller is a best practice for a SIP deployment.  Where does your network end and the carrier network begin?  Well, that is the single most important benefit of a SBC!  Additionally, the SBC can be the point at which we “normalize” SIP messages and translate between any dialectic differences between SIP implementations.

Generally, in ShoreTel you will setup your underlying resources by allocating ShoreGear switch ports, media  termination points, profiles, timers and DTMF handling configurations.  The  Creation of a SIP trunk group is very similar to the configuration of a PRI trunk group and the same options will need to be specified as to the use of this group.   Then SIP trunks are added to the SIP trunk group, the actual circuits on which phone calls will take place.   If the trunk group is to support tandem trunking and is connecting to another system as a tie line, the off premise extensions and digit translation options will also need to be configured.

The first video will walk through the configuration of a TIE trunk between two ShoreTel systems.  One system will use the TIE trunk to place all outbound PSTN phone calls through the other ShoreTel system.  Both systems will use the Trunk Group for extension to extension calling, with one system having extensions in the range of 200-299 and the other having extension in the 300-399 range.   We will walk through the basic configuration and then also take a look at wireshark captures to illustrate the SIP call setup message exchange.    In the second part of this update, we will the route calls out a SIP trunk to a SIP carrier for PSTN calls, using several different SBC’s.

Contact DrVoIP@DrVoIP.com to have us setup this up for you!  We offer flat rate configurations!

 

ShoreTel fail over options using Vmware – Part 3 the “HA” and “FT” Option!

Posted on by DrVoIP

A quick review of vocabulary before we go into this subject any further.    First when we refer to vSphere, we are talking about the entire VMware ecosystem and all of its components.   It is just a short hand for the entire system solution.    ESXi is a VMware hypervisor.  It is the “host” hardware on which the “guest” virtual machines run on.  vCenter is an administrative portal that enables you to manage multiple Datacenters.   A Datacenter is a collection of ESXi hosts.  I strongly urge all serious engineers to watch Kieth Barker’s presentation in CBTnuggets on this subject, particularly his presentation on HA and FT in the certification training for vSphere VCP5-DCV.  Kieth is a truly excellent instructor and he gets paid to make videos!

A more advanced ( read cost more money) strategy for managing server failures in vSphere is either High Availability or Fault Tolerance.    Assuming we have three ESXi hosts, lets take a quick look at how each of these strategies would work.   Using vCenter we would enable High Availability or HQ at the cluster level.  The first ESXi host to boot up, would be nominated Master. Assume the ShoreTel HQ is a virtual server running on this ESXi(1).  All the ESXi hosts in the cluster, would exchange heart beats over the management LAN that they all share.   Should the heart beat from ESXi(1) not be detected, it would be considered down and the virtual machine would be restarted on the secondary server in that cluster.

An VMware server running VMware Tools, can also generate heart beats between itself and the ESXi host that it is running on.   Should the host not receive a hear beat from the guest VMware server, it would consider it down and cause a new instanc of that VM to run.   Generally, it is a good practice to use a backup hearbeat to verify the failure of a machine.  For example, if the host machine does not generate a heart beat detected by the other hosts in the cluster a back up check could be made to see if the iSCSI storage is being accessed by the missing VMware server.  If that heart beat is detected, then the guest is not considered down, but is consider “isolated” and the new instance will not be started.

The issue with High Availability is how long does it take to bring up the replacement guest machine on a new ESXi host?   What is the boot time?   In Part 2 of this discussion we talked about a configuration that could survive this issue if it was the DVM that went down as the HQ would take over during the down time.  If this was implemented in vSphere with HA, the entire process would be transparent to users.

Fault Tolerance is the solution when there can be no down time whatever  should the HQ server fail.    FT is activated through vCenter as easily as HA, but generates a “mirror” image host that is always running.    For example, a ShoreTel HQ server running as primary on ESXi(1) might have a “mirror” host running as a secondary on ESXi(2).   Should the primary ShoreTel HQ host fail, within microseconds the ShoreTel HQ mirror or secondary will take over.  Not only will it take over as primary, but a new secondary mirror could be started on ESXi(3)!

Clearly FT is the way to go if you feel you can not survive a ShoreTel HQ loss under any condition.  Understand that it is resource intensive, as you are minimally running twice the horsepower!  Also to keep the “mirror” images alike, you will need a high bandwidth connection between ESXi hosts to provide for “FT Logging” which is all the activity to copy real time between hosts.

As previously mentioned, a copy of VMware vSphere Essentials Kit which includes ESXi for a total of 6 processors or 3 severs with 2 processors each and a copy of vCenter along with updates for 1 year is about $560.  vSphere Essentials Enterprise Plus which adds in the functionality of vSphere Hypervisor, vMotion, Cross Switch vMotion, High Availability, Fault Tolerance, Data Protection, vShield Endpoint, vSphere Replication is $4229.   Support on all products can be purchase as needed or for term.

Out next project is to figure out how to do this all on Amazon Web Services and at what price!

The video shows key elements of this discussion!

 

ShoreTel fail over options using VMware – Part 2 the “Poor Man” Option!

Posted on by DrVoIP

A simple yet very effective step you can take to assure a high availability  is all but free!  It occurs to us that it is no longer acceptable to install ShoreTel on anything other than a VMware ESXi server!  Lets face it, you have to purchase a hardware package to host your server regardless of which way you go.   You have to purchase a copy of Microsoft Server, regardless of which way you go.  So how do we make this more cost effective?   From our perspective upgrade the hardware platform you have to purchase anyway,  to be a quad core with about 16 -32 GB of memory.  ESXi is still available for free, so download and install it on that platform then install the Microsoft Server on top of it!

Now you have your ShoreTel HQ server at the HQ site.  No harm no foul and you are positioned to do some really kool things.  First, clone the Microsoft Server and bring it up as a DVM.  The key here is to install the DVM at the same level as the HQ server, not below it as a child server.  Put you HQ users on this server and have this server manage all your HQ site ShoreGear switches.   The reason for this is, it is the cheapest most cost effect fail over you can provide.  ShoreTel servers fail up, OR across but not down. This means if the DVM fails, the HQ server will proxy for it for those users!  Forget all that Double Take Double Talk!  Just do it.

While you are at it, bring up a virtual ShoreGear User switch as a “spare” switch and also install the vConference switch. The spare switch enables you to spin up an alternative switch for any site, if a switch at a site goes down.  No cost to you unless you don’t fail bak in under 45 days! Why would you not do that?  Why would you work with a partner who did not just do this as a “best practice”.   Come on guys, this is like deployment 101,  just do it.  The freaking conference server is “free” as an IM solution and the licenses for the conference bridge and desktop sharing users is cost effective when compared to anything in the market including GoTomeeting and Webex!   Again, what is there to think about?

So now you have your VMware platform offering a HQ server, a fail over DVM server, User Switch and an IM server.   Consider that for the cost of a Microsoft Server (you saved that by cloning one, remember) you can purchase (hoepfully from us)  a copy of vmware Essentials.  This package adds vCenter to the mix and now you are kicking it.    vCenter sets up a centralized administration interface for your ESXi servers.  You can now setup heartbeats between the ESXi host and the VM machines as long as they are running VMware tools.   You can also run heartbeats between vCenter and the ESXi hosts so that on failure of a heartbeat, vCenter launches another instance of whatever serer went down on another cluster host!

Are you freaking kidding me?

The video shows you how to install the DVM at the same level as the HQ server and how to clone a virtual machine.  Subsequent videos will explore the high availability and Fault Tolerant options available with vCenter and clustered ESXi hosts.

 

WebRTC “peer to peer” Call Center Demo!

Posted on by DrVoIP

What is a “peer to peer” call center?  The concept is a fully functioning call center that exists only in the internet browser of the workgroup agents and supervisor participating.  In fact, no telephone lines are needed, beyond the published customer service number.  There is no large internal LAN network. No complex phone configuration, not eve n a handset. All communication with Agents is done through a Chrome or FireFox browser.  Your computer needs to have a microphone and be on the internet.  The microphone can be built in or be a USB based headset plugged into your computer. (Hey, here is an idea: Music on Hold is so last century, now we can have “video on hold”  show them a product demo)!
We created a demo at http://DrQOS.com (Dr Quality of Service, DrVoIP’s alter ego) that you can log into as username:agent1 with a password:test1234. The demo system has a fictitious company automated attendant and when you call the main number 619-717-2143 you will hear the FAKE menu and you should immediately press 1#. You will then be routed through to the logged in Agent. The agent is made ready by just logging into the portal. Click on answer and you will be connected and speaking through the webRTC protocol resident in your browser out to the caller (again remember only Chrome or Firefox browsers are supported).

NOTE – Please do not log in as the Agent and then call yourself through the Agent console, the demo is designed so you can see both sides.  You can be the agent or the caller, not both!   If there is no Agent logged in, the caller will be asked to leave a Voice Message.  In most Browsers the first time you click answer you will be prompted by the browser to grant access to your mic which you should allow!

 

2017 UPDATE – We have continue to develop the product and have taken down the above site.  It has now been replaced with a production ready solution built out on Twilio and AWS.   The product enables WebRTC as well as a variety of SMS services including text to email.  Please text the word DEMO to 424-348-4000 and we will set you up with a demo account.  Here is an overview of the product!

A ShoreTel Communicator for the Mac?

Posted on by DrVoIP

We recently had an opportunity to work with a ShoreTel client that was exclusively using Apple Mac’s throughout their enterprise.   We asked how they made that decision given the clear cost advantage WinTel PC hardware had over your basic Macbook.   The answer was simple and clearly economic.   They had used Windows in the past, but found that they had to many problems with virus, email, drivers and the annual cost of license renewals! Yes the Mac’s cost more but they just seem to work and they don’t have to worry license issues.    Interesting.

This was a ShoreTel deployment so that made for some interesting trade offs when it got down to the desktop software.   The ShoreTel Communicator is optimized for the Windows based machines.    There are several license types for Personal, Professional, Workgroup Agent, Workgroup Supervisor and Operator Communicators.   With the Mac, there is only one Communicator and it has the functionality of the ShoreTel Web Communicator which is basically a Personal Communicator.

It does however get the job done as far as call handling modes, inbound primary phone options, multiple call management and visual voice mail.  You can setup your call handling modes including your personal operator and find me functions for each mode.  You can configure and select 5 alternative phones and setup your incoming call routing to include simultaneous ringing of other phones.   The visual voice mail tab works just like you would expect and you can also select a history and call details tab.

The noticeable difference is the absence of IM options.  ShoreTel had been suggesting the use of iChat for that function as that client was supported on the ShoreTel SA-100/400 conference servers.   In the Communicator there is always more than one way to do something: point and click, right click, use some chord sequence on the keyboard that includes the control key.   Right clicking on a Mac Communicator however is not going to work!  There is however, drop down menu options that appear as required to assist your call management.   All in all, the Mac client is an excellent solution if you have a Mac and a ShoreTel.  You can download the MAC dmg installation file from the ShoreTel HQ server and you are good to go!

Find the password from behind the ********** and other security vulnerabilities!

Posted on by DrVoIP

If you are paying even the slightest attention to current technology trends, you will notice that many of your desktop applications are taking on the appearance of a browser!  The entire Microsoft Office suite, for example, has been optimized for the “cloud”.  Free versions available for iPhone.   Mobile devices in particular are depending more on “server” side applications with the “client” reduced to a thin client browser type interface.   The good news is that less computing power is needed at the desktop making the possibility of re purposing old computer as thin clients a reality.  No need to run out and get the latest hardware and desktop operating systems, if you are moving to the equivalent of Microsoft Office 365,  Google Docs or any of the increasingly popular cloud based solutions.

Along with the dependency on browser based applications is the alarming rate of security vulnerabilities that are exploit by the savvy against the less sophisticated user.   As the browser becomes more widely used as the primary application interface, more security violations are  experienced.  Why?  The best way to understand this phenomena is to look at a very simple example of a security vulnerability observable on most desktops, the cached Password.   When you bring up your browser to access your favorite cloud application, your user name and password are often presented automatically.  The Password field is generally filled with a string of ************ to block out your password from view.  Once you realize how easy it is to recover that Password and to display it in clear text, you will intuitively learn how dangerous cloud based security vulnerabilities can quickly become if not judiciously policed by an educated user population!

 

Can I text your Enterprise Contact Center?

Posted on by DrVoIP

Phone only ‘call centers’ have been rapidly replaced with ‘contact centers’ that can also handle email and chat communications.  Customers want more options for interacting with companies they buy products and services from.  Chat requires the customer to be at a computer and though email may be sent from a mobile phone, generally the sender is at a desktop.    In a wireless world in which every man, woman and child seems to wonder around with a ‘text’  or sms enabled device on their person, does it not make sense that they would want to text your call center?

Most call centers seem to be comfortable adding more and more incoming telephone lines, but never seem to add more agents?  We now queue up more clients to the same number of agents and expect that our customer satisfaction scores will increase with each new telephone line we add.   Chat and email increase the options that an agent can use to communicate with a customer, but only text offers location independent immediacy and the highest level of accuracy in CRM integrations.

A text will be read, on the average, within 10 seconds of its arrival.  It has a significantly higher read rate than email.  It is considered spam free, as you must opt in from you own mobile phone to receive future text messages.  As most folks under 30 do not even have a land line, using the CID of a SMS text will yield a much higher accuracy rate when doing screen pops from CRM integrations.    Self Service options for SMS are enormous and scheduling an agent call back could not be any easier!

What would you rather do: call into a contact center, listen to the obligatory menu of options, self navigate to the customer service group and then hear the first queue message: “the next available agent will be with you momentarily”; or send a SMS text message directly to the contact center group, by passing the automated attendant  and if you do not receive an immediate call back, receiving a confirmation text that an agent will call you at your mobile number in four minutes?

We have created a website to enable you to immediately setup a text based marketing campaign! You can create an account at our TEXT PORTAL  and select a phone number for your campaign and be in the digital marketing world in minutes.  We give you free SMS credits when you activate your account!  Interested in extending this capability to your Contact Center?  We can implement text functionality to your ShoreTel Contact Center or CISCO UCCX in a matter of hours!

Contact DrVoIP@DrVoIP.com or send the word CALLME to 603-426-3253 for sample application!  If you would like to test T2E (Text to Email) text your email address to the same number and we will set you up. – DrVoIP

ShoreTel iPBX phone system Training!

Posted on by DrVoIP

Phone Training is a double edged sword.   Everyone wants it  but nobody really wants to make the time commitment required to get comfortable with the new phone features that a system like ShoreTel brings to your  business.   Most folks figure it is a phone, how complex can it be?   That is true, ShoreTel phone are easy to manipulate and most features are intuitive.   There are however, a range of features that improve customer care, increase availability and enable you to achieve priority call management that are new concepts in business communications.   These features deserve some attention and the hour or so invested in learning about call handling modes, primary phones, simultaneous ring, follow me and custom call routing enjoy more than favorable return on time invested.

In addition to basic user training (we have to find another word to replace user, sounds like drug addict) ShoreTel has applications that also require training.  For example if you have an Enterprise Contact Center or a Work group environment, you will need to provide instruction for your Agents and Supervisors.    Are you using CRM connectors like Salesforce and Microsoft?  Do you have a custom application integrated with your ShoreTel?  Maybe the Recording or 911 application?   How about the Mobility server?   Are you using the iPhone and android aps?  Finally, all of these system need an educated System Administrator to handle adds moves and changes, who is going to provide that training?

When it comes to the basic ShoreTel phone system,  typically we break user training into basic phone handling and save the Communicator as a separate session.   Not everyone needs to learn Communicator, but everyone in the enterprise needs to know the basics phone function if they are going to be effective come “go live”.   How to setup your voice mail, assign your extension, manage multiple calls, transfer, conference and park are essential tricks that all employes should learn.   Generally, this is a 30-45 minute session and groups of 10 people around five handsets with an instructor using a projector for the call manager is a minimum training environment.  Like wise, to get through the Communicator, it will take another 45 minutes.   If you have to train several hundred people, over multiple sites, training is going to be a significant time investment and several days of Per Diem for an instructor on site!

We have found that web based training can be very effective for all of the various types of users that need to better understand these systems.    You can do large groups and a much lower cost without sacrificing the informational content.  Though we find mufti-media self paced training resources to be a very valuable as refrenece material or to help future new team members get up to speed, it is generally agreed that having an insturctor led webinar is a better solution.   The instructor can be aware of the specific configurations that uniquely define every deployment and can answer questions, propose feature solutions and generally help folks better understand the rich library of features they are about to make use of.  System Administration is without question easily done by web, as you are just going to log into a Shareware Director portal anyway!   No need for everyone to hurdle in the server room!

We can help you with distance learning solutions (or come on site) custom tailored to you deployment.  We can cover the full range of ShoreTel products and generally enjoy helping folks!   Give us call or  Text “ShowMe” to 15165197813 and we will setup a meet!

 

 

 

 

 

 

ShoreTel fail over options using Vmware – Part 1 Building a VMware Test Lab!

Posted on by DrVoIP

The most often asked question we hear among ShoreTel system administrators is how best to achieve “fail over”, assure high availability and assure business continuity? There is no simple answer to this question nor is there any one “best practice”. It is going to depend on any number of interrelated issues including budget, facilities, availability and down time goals. With unlimited funding there are many more options then there are if we have a very limited budget. Is our deployment located in a single facility or scattered across multiple sites? Do we have an onsite data center or a “cloud” or collocation facility. Can we tolerate any down time at all or are we looking for hot fail over with no service interruption?

Redundancy by itself is not sufficient to guarantee high availability or continued uninterrupted business operations. Two power supplies are always better than one (especially if they are plugged into separate electrical sources) and RAID disk arrays are more reliable than a single spinning hard disk and iSCSI may even be a better. Many system administrators have explored commercial options like Double Take with its active/active fail over strategy.

At the end of the day, our view is that multiple hosts across multiple locations in a virtual or cloud based deployment are you best options. We think VMware and Amazon are unstoppable solutions providing high availability and business continuity assurance that maximizes budget, simplifies administration and with the lowest risk. Though we will have much more to say about Amazon Web Services, especially how it can best interface with VMware, we are going to demonstrate several configuration built on the vSphere ecosystem.

In our opinion  your ShoreTel partner should have installed your deployment on VMware from the onset.  A single VMware ESXi hypervisor host running your ShoreTel HQ Server and a ShoreTel Distributed Voice Mail server with the DVM installed at the same site and at the same level as the HQ server, will provide a very effective fail over solution at the lowest possible cost.   VMware Essentials gets you ESXi and vCenter for $540, what is to think about? A single hardware host with two virtual Windows servers, a shared iSCSI data store and a copy of FreeSCO  will best any effort to run redundant HQ servers!   ShoreTel servers can fail up, so just put all of your HQ switches and Users on the DVM and if it fails, HQ will take over.  If HQ fails, no  real harm done.

Sounds like a lot of hardware complexity but we are going to demonstrate this on a lab system consisting of a single Windows Laptop! Through the miracle of VMware,  Openfiler and FreeSCO we are going to create this entire solution and use it to prove out several different “fail over” strategies that can be used to develop “high availability” options for your ShoreTel deployment.   Additionally if your are just learning VMware, this will be an excellent  “play pen” and “sand box”and learning environment,  well within the budget of any serious student of virtualization. If you can access a lap top the rest of the requirements can be obtained as open source “free ware” or evaluation software. So lets lose the excuses and get to work!

Building your “Sandbox”!

Our test environment will consist of 3 ESXi Hosts, an iSCSI data store, a CISCO compatible routers; two Windows servers; and  two XP or better Windows PC’s.  As this entire lab will be built out on a single device here is the “parts list”:

(a) Windows laptop – If you have several spare PC’s or servers that you can make use, of great but we can build out this entire test lab on a single laptop. The only requirement is that we need 16GB of RAM! as long as you can expand the memory to at least 16GB.

(b) Your first lesson in virtualization is to understand the difference between a type 1 and a type 2 hypervisor. VMware ESXi is a type 1 hypervisor and that means that it is installed on a bare metal host computer, typically an appropriately configured server.  VMware Workstation is a type 2 hypervisor meaning it is installed on top of an operating system, like Windows,  already installed on a bared metal hardware platform.  In this case, we have a laptop running Windows 8 and we are going to install VMware Workstation on top of Windows. You can download an evaluation copy of VMware Workstation from http://www.vmware.com/products/workstation/workstation and when the 90 day  evaluation is up, if you can find $249, it is our recommendation that no VoIP Engineer or Field technician should be without this a lap top running product.

(c) ESXi is a type 1 hypervisor and the really good news is it that it is still available absolutely free of charge. This will be the core of our test lab and we will build out three hosts, all running in VMware Workstation on our laptop, to support our ShoreTel deployment.

(d) Building out a ShoreTel HQ server under ESXi as a single server is what most folks do.  If you are going for high availability, however, you need to consider the size of your data store.   Even if you are only restoring a “snap shot”, the size of your data store may be the limitation that determines down time.  Rather than store the application data on the Windows server used for your ShoreTel HQ erver, we recommend that you install an iSCSI data store on your LAN.  In this way , if you have to restore the server, you will already have the data store available (this is where AWS S3 comes into play, so see our previous blog regarding backup strategies).  You can download community edition of Openfiler  the iSCSI data store we are going to deploy in this lab from http://www.openfiler.com/community/download as we will be configuring our deployment based on the availability of network area storage.

(e) One of the “must have” software tools in our Engineering laptop tool kit is a three interface router named FreeSCO!  It is pronounced “Free CISCO”as a take off on our favorite company to hate.  For those of you who ever wanted to deploy a fully functioning CISCO router from a USB drive,  down load this now from www.freesco.org or download the ova we created which is available in the member portal of the DrVoIP web site.

(f) Lastly, you will need Windows Server software, either Windows 2008 or 2012.   You can  download an evaluation copy from Microsoft at http://msdn.microsoft.com/en-us/evalcenter/dn205302.aspx if you do not have a copy kicking around your lab.

(g) Lastly, ShoreTel has never asked for our opinion but they do not make evaluation software easily available to lab environments or to students who hope to be future ShoreTel VoIP engineers.  ShoreTel software can only be legally obtained by purchasing a system or through a support agreement from either a ShoreTel partner or directly from ShoreTel TAC.  If you are a partner or covered under a support agreement, you can down load all sofware from the ShoreTel site.  The iPBX software will run license free for 45 days.   Our lab is going to make use of the ShoreTel HQ server, the ShoreTel DVM Server and several virtual Shoregear voice gateways.

The DrVoIP video demonstrates how this lab is constructed and how the various components are installed and is part of the over all VMware training material available (or soon to be posted) on the DrVoIP website.   This lab will enable you to not only become very comfortable with VMware in general, but help you explore the various options for providing high availability and business continuity to your ShoreTel deployment.