2010年11月10日星期三

Hosted VoIP and UC to Grow

When you see reports like these two, the first from ABI Research and then another from Infonetics you can understand why cBeyond purchased client Aretta Communications last week as the market for both hosted VoIP and Unified Communications are only going to grow. This then has to be viewed as only good news if you work with companies like Level3, Global Crossing, and the like, as well as companies like Simple Signal, Telesphere, InPhonex, Junction Networks, CallTower, M5, MegaPath and others who sell hosted Unified Communications or VoIP. The same for Cisco, Avaya, Microsoft and ShoreTel, as the arms merchants always make money in a war and the war is basically the next generation IP centric folks vs. the larger more entrenched iLECs like ATT, Verizon, Sprint, etc., in the USA and the international carriers like Telstra, BT, FT, SingTel, etc.

A couple factors are driving the growth

1. Remote Workforce

2. Cloud Services

3. Cheaper costs for minutes

4. Ability to manage based on policy

5. Collaboration-conference calling, presentation, presence

When you look at all that is moving over IP, and how PRI's and T1s can be replaced far more efficiently with dedicated data networks it starts to make sense. But, all UC and Hosted VoIP are not created equally. There are differences starting at the on premise router and how the carrier manages the traffic and their own network. So like anything, "buyer beware." Price is not the only consideration which is where pal Tony Greenberg's company, RampRate comes into play with their SPY Index and other tools that help companies decide where to best put their IT spend. The data that RampRate has assembled and how their team negotiates on commitments enables IT managers and more importantly, CFO's, to better understand what they're paying for, and ensure what they are really getting.

2010年4月28日星期三

VOIP_Providers

VoIP Providers

If you wish to make calls over the internet, then you will need to sign up to a VoIP provider.

The largest list of VoIP providers in Australia (or VoIP providers that service Australia) is provided by Market Clarity. A smaller list is provided by VoIP Choice & Internet Choice which all list the plan prices and call rates.
Although these websites are updated regularly, but be sure to check with any provider that you intend to sign up to in case of price changes.

To get the best value, take a good look around before you decide (especially at the VoIP Forum) to see if there are any limited offers available.

It is also important to note that you can use multiple VoIP providers if your hardware supports it (eg SPA3000). If your hardware doesn't support it, you can use a service called Voxalot to do your call routing for free, so that calls to different destinations go out through different VoIP providers, achieving the best rates for each destination.

There are many reasons to use an Australian provider (easier to handle billing issues, better latency, and quite often quality!), but if you call (or receive calls from) international destinations, then dont just limit yourself to Australian providers. There are hundreds of providers out there around the world – with anything from free accounts, to paid accounts with indial numbers in the most unusual of countries. (You can get an Indial number in an international city of your choice, thus saving your friends or relatives money, as when they call that local Indial number, it comes straight through to your VoIP phone and only costs them a local call!)

Some popular Australian Providers have their own Wiki pages. Follow the links below.

- Ace Communications Group
- Agile Networks
- Antratel
- ATP
- Aussiewide
- BBPGlobal
- Broadband Solutions
- Brown Bear Internet
- CentrixPhone
- ClicknCallnow.com
- Comcen Internet Services
- Delacon
- Engin
- Exetel
- eVoIP
- Faktortel
- foneAnyWare
- Fonebox
- Freshtel
- FWD
- Globechat
- GoTalk
- iiNet
- Internode (NodePhone)
- iPrimus
- Maxo Telecommunications
- MondoTalk
- MyNetFone
- Mytel
- Nehos Communications
- NetFuse
- Nettalk
- NuFone
- OneNetwork
- Oztell/Net2Max
- Resonance Networks
- PennyTel
- Saco Technology
- Freecall (Siphone)
- SIPME
- Sipphone (Gizmo Project)
- SmartVoice
- Spin Internet Services
- TPG
- VoNEX – Hosted PBX
- Vocaltone
- VCall
- VoIP Australia
- Voipbuster (voipstunt & voipdiscount, The Betamax Group)
- VOISE
- VoXaLot
- WorldDialPoint
- Your Phone

Blank Form for adding extra providers if required

VoIP Service fault monitoring websites:

OzVoIPStatus – VoIP Monitoring Website (Also has some customer opinions/comments)

The following are not providers but are worth mentioning:

- Australian 1300 VoIP Gateway (Dial into many VoIP providers from the PSTN with this number)
- Sipbroker (VoIP Peering system)

FREE International DID Providers
Here's a list of some Free international DID providers

2010年4月26日星期一

How Voice over IP Works

How Voice over IP works is a mystery to some small business owners and employees. But if you understand how Voice over IP works, you can more easily use the technology to your company’s advantage.

How Voice over IP Works: At a Glance

  • With VoIP, analog voice calls are converted into packets of data. The packets travel like any other type of data, such as e-mail, over the public Internet and/or any private Internet Protocol (IP) network. This is the essence of how Voice over IP works.
  • Using a Voice over IP service, you can call landline or cell phones. You can also call computer-to-computer, with both parties speaking into a computer microphone and listening through computer speakers or headsets.
  • When evaluating how Voice over IP works, it’s worth noting that you can make or receive calls using landline telephones. All you need is an analog telephone adapter connected to your network. Also, to ensure the best voice quality and security, consider using your VoIP or other communications system on a private IP network.

How Voice over IP Works for Your Business

How Voice over IP works for your business is simple: By adding voice to a data network, you’ll reduce costs, improve productivity, and enhance collaboration.

  • You’ll save money by having one network to manage instead of two. You can easily add, move, or change phone extensions and locations, which saves money and gives you more flexibility.
  • Your workforce can use your communications system from home or on the road. Also, wireless IP phones connect users to your communications system and data resources, such as customer information, while they’re in the warehouse, on the sales floor, or anywhere they can access your data network wirelessly.
  • Unified communications solutions for small businesses go beyond basic VoIP capabilities in enhancing collaboration. With a unified communications solution, workers can easily collaborate through voice, video chat, Web conference, and instant messaging. Employees can collaborate using each technology individually or all of them simultaneously, and from a single, easy-to-use interface.

Find out about Cisco Unified Communications solutions tailored specifically for small businesses.

Contact a Cisco partner who can help you determine the best communications solution for your business.

Other articles you may be interested in:

2010年4月25日星期日

How to remove a Temp License

There is a tool on the UCCX server called CET.bat which is a sort of utility tool that allows you to do some VERY complex and powerful things on the server. To access the tool you simply need to open up a command prompt, or browse to the c:\program files\wfavvid folder and launch the CET.bat file. See the screenshot below:

CET Tool via Command Line

Now this might look a little strange, however, just type CET.bat from the command line and you will see the black DOS syntax go flying across the screen. Eventually you will be brought to the GUI based menu below, once you are into the GUI you need to select “com.cisco.crs.cluster.config.LicenseConfig. This brings up a list of CRS Licenses. You need to delete the temporary license.

CET Tool for UCCX

To delete the temporary license simply highlight the row containing the license file by clicking on it with your mouse, then right clicking and selecting “Delete”, see below:

CET2

Once you have deleted the key, you need to restart the CRS Node Manager. This is often a place where most people mess up, because they think the Node Manager can be restarted via the Control Center in CRS’s Appadmin page. The best and easiest place to restart the Node Manager is straight from the Services.msc. *** NORMALLY, I would never recommend restarting any CRS services this way, but for this top level service this is the place to be:

CET 4

Once you click on Restart it may take several seconds/minutes for all CRS services to restart. The best way to double check and make sure you are okay is to always refresh the screen here, but to also log into the Appadmin page and visit the Control Center to make certain RMCM and Unified CM Telephony at a minimum restarted successfully. You can also place test calls into the applications.

Hope that helps!

2010年4月24日星期六

VMware ESXi setup of Vlans

open up the vmware infrastructure client
select the server
select configuration from the tabs in the header
select networking from the hardware list on the left
select add networking in the top right
select "Virtual Machine" and click next
select "Create a virtual switch" and click next
Enter a name for the switch (don't worry about vlan IDs)

rinse and repeat for any other subnets you want to have.

when you build the virtual machines that you want to route with make sure you have more then one virtual interface per machine and connected to more than one virtual switch.

physical interfaces come in to play is if you want to have these virtual switches connect to your physical lan

2010年4月21日星期三

Enterprise parameters

Refer 3.3.3 SR4a

a. Automated Alternate Routing Enable – False by default, to enable set it to True

b. Peer Mode Enable Code —? Entarapeeee – This enables the code to enable Peer mode Database. Default is 0000, Maximum length – 4 — Check this out!!!!

c. Sync between ADP and Phone config – Default is True. If set to false Cm will not update ADP when updating speed dials, ip phone services, directory numbers etc.

d. Max no of device level trace – default is 12, max is 256, min is 0

e. URL Help – help hyperlink in the gateway web pages. (/help”>http:///help). Once you add a gateway like 6608, you should see a help hyperlink which takes you to product specific help.

f. Dependency records is set to False (disabled) in 3.3.3 sr4. Its enabled in 3.3.3

g. Show Ring settings ——- This will enable whether user can change ring settings or not. By default its set to False. If set to true, user can change ring settings from user webpage (http://cmserver/ccmuser)

Ring settings mean, how to ring when phone is idle and when phone is in use.

ex: ring normally, ring once, flash only, do nothing.

h. CDR parameters (6 parameters) – study these when you study CDR. ***REMEMBER***

i. Default Network Locale and Default User Locale – If a phone or device pool is not configured with a locale, it chooses what ever locale that is configured here.

j. URL Authenticate, URL Directories, URL Idle, URL Idle Time (sec), URL Information, URL Messages

Find out what is URL Authenticate ********REMEMBER*********

URL Directories – for showing corporate directory on phone. Remember to change all Enterprise paramater server names to ip address.

Make sure all users in CD have telephone field defined. Otherwise people wont be able to dial through a search in CD.

URL IDLe is used to display an image like logo of the company. Use IP Phone productivity services to perform this task. ********REMEMBER TO DO TASK**********

URL Idle timer = 0 (disables IDL url feature)

URL Information – press I page will invoke this web page.

URL Services – When services button is pressed, this url is invoked.

IP Phone Proxy address – To access all the above URLS a proxy can be specified.

k. Enable All user search – This if set to true, will allow blind search from Corporate directory in phone. Default is true.

l. User search limit. This is the number of users that are returned for a blind search from CD. Default is 64. Maximum is 500. (minimum is 1)

2010年4月19日星期一

UCSniff (VoIP and IP Video Security Assessment Tool)

UCSniff is a VoIP & IP Video Security Assessment tool that integrates existing open source software into several useful features, allowing VoIP and IP Video owners and security professionals to rapidly test for the threat of unauthorized VoIP and Video Eavesdropping. Written in C/C++, and available on Linux and Windows, the software is free and available for anyone to download, under the GPLv3 license. Some useful features of UCSniff that have been combined together into a single package:

  • Allows targeting of VoIP Users based on Corporate Directory and/or extensions
  • Support for automatically recording private IP video conversations
  • Automatically re-creates and saves entire voice conversation to a single file that can be played back by media players
  • Support for G.729, G.723, G.726, G.722, G.711 u-law, and G.711 a-law compression codecs
  • Support for H.264 Video codec
  • Automated VLAN Hop and VLAN Discovery support
  • A UC Sniffer (VoIP and Video) combined with a MitM re-direction tool
  • Monitor Mode
  • Sniffs entire conversation if only one phone is in source VLAN
  • Gratuitous ARP Disablment Bypass support
  • TFTP MitM Modification of IP Phone features
  • Realtime VoIP and Video Monitor

You can download and try out UCSniff from their website.