Voice Virtual Private Networks (VPNs) have long delivered real benefits to businesses with multiple sites or branch offices. As well as free calls between sites, they enable call break-out to the public network at the point closest to the call destination – saving on charges for long distance calls. They also support global numbering plans for organizations, making internal comms easier. VoIP VPNs have taken these benefits a stage further, enabling calls and data to be routed on the same IP infrastructure.
The downside is, these private networks have traditionally proved expensive to deploy and maintain. In the 1990s, they used to demand dedicated private leased lines to link offices – each costing thousands of dollars per year to rent from the telcos.
Paying to go private
In recent years, with the advent of IP PBXs, Voice VPNs could be enabled over existing IP links, just like data VPNs, giving a secure site-to-site link that is set up as needed. This drastically cut the costs of renting dedicated lines, but with a drawback.
Typically, an organization has to deploy IP PBXs from the same manufacturer at every office, to enable VPN networking. This in turn demands expensive rationalization of premises equipment. In addition, though not as costly as dedicated leased lines, expensive MPLS-based links have to be installed.
So the choice has been to either pay for the ridiculously costly dedicated lease lines, or deploy interoperable IP PBXs and MPLS links at every branch, at considerable costs. And that’s before you even consider issues such as encrypting voice traffic across the private network, or handling traffic across your network’s routers and firewalls.
These issues have typically made voice VPNs a viable option only for larger organizations or enterprises. However, there are other options now available to businesses, without the high cost of entry.
Creating a Skype Voice VPN
By using Skype, the world’s largest and most reliable VoIP network, to form the VPN, the network itself is available for free. And with PBX-to-Skype application gateways that link any office phone system (whether traditional digital switch, or IP PBX) to Skype, the benefits of voice VPNs are available to almost any business, for a low one-time upgrade cost. What’s more, businesses don’t have to swap out or replace their existing investments in PBX equipment – which is useful in the current lean times.
So how does this work? How does a business build its voice VPN using Skype and reap the benefits?
First, the business deploys a PBX-to-Skype application gateway at each location. Depending on the company’s needs, the gateways add anything from 4 to 30 Skype lines to the company’s existing PBX that can be picked up and transferred between extensions like an ordinary call. Employees simply dial 8 for a Skype line, or 9 for an ordinary line. What’s more, the gateways work with virtually any model of analog, digital or IP phone system.
The company can then create a global numbering plan for their Skype voice VPN, enabling employees to use extension dialing to branch locations on the network. These site-to-site calls are free over Skype, and long distance calls handled using SkypeOut to reduce costs. The gateways also centralize Skype provisioning and management, giving IT managers full control over its use, eliminating the need to install Skype on each PC. This means no need for headsets – all Skype voice functions are delivered to users’ PBX handsets.
Enable PBX Remote Access to the Voice VPN
IT managers can enable remote access to the corporate voice VPN, by simply installing the free Skype for desktop or Skype for mobile software client on the remote workers desktop or laptop PC. With PBX remote access, road warriors and remote workers can securely access to the voice VPN, enabling free calls to and from employees at the corporate or branch offices. This solution is much better than traditional softphone solutions due to Skype’s ability to seamlessly traverse NAT/Firewall and its superior voice quality over the open Internet.
Build Voice Extranet for Customers and Partners
With today’s global economy, companies small and large have supply chains that cross national and international borders. Traditionally, voice VPNs (legacy with leased lines or IP-PBX enabled), were designed to focus on intra-company communication and did not support connections to partner networks.
However, with the ubiquity of Skype and PBX-agnostic Skype gateways, it is easy to extend the corporate voice VPN to include an extranet for free and secure partner communication. All the partner company has to do is to connect a PBX-to-Skype gateway to its existing PBX and have the main Skype ID of the partner site programmed into the PBX-to-Skype gateway’s address book.
This will allow both companies to make and receive calls for free between their offices by simply dialing a speed dial number, which is mapped to the Skype ID. In addition, the enterprise can also set up advanced click-to-talk functionality directly from company websites or HTML emails, enabling online browsers to call the company directly, at no cost to them using Skype.
Calling up benefits
A Skype voice VPN, like its traditional counterpart, eliminates costs for inter-office calls. It has the key advantage of working with any existing infrastructure, seamlessly connecting disparate phone systems without extra costs for the network links.
In terms of traffic management, Skype works transparently behind routers and firewalls without needing any complex configurations or set-up. Furthermore, all Skype calls are secured using strong AES encryption, to protect an organization's privacy – just like a secure data VPN.
There’s free, secure remote access to the corporate VPN for road warriors, which enhances productivity while helping reduce communication costs. Companies will be able to further reduce their telecom costs with a voice extranet that enables free and secure calls with partners in their supply chain.
These all help to make the Skype voice VPN solution a compelling proposition. So while setting up a private network for voice may not be completely priceless, it’s a solution that will quickly deliver a return on investment – and will go on delivering savings and benefits.
Labels: business, guest, partners, product, skype, technology
and the second time this year that Skype adds a million concurrent users online in only 3 weeks, (this is a record speed) and also the fifth million milestone this year, another absolute record. And the growth goes on despite competing products, lawsuits, new owners, eBay, police and intelligence agencies threats and unhappiness, ... 
the 
I never realized this but 
Skype
In this article, I will attempt to compare Skype for iPhone vs. Skype for Playstation Portable. I'll update this entry when the BlackBerry version becomes available. 
The iPhone and iPod Touch needs very little introduction. With a large touch screen display and portrait layout, it makes a very good UI candidate for Skype (much like its desktop counterpart). 
I love the convenience of having my beloved PSP-3000 as a gaming device and knowing it can also surf the web with Flash while keeping up with the communications needs via Skype. 
The one part I have to gripe about is the need of an external microphone. My 
Skype network to receive calls from the Skype network and place calls to 
Again a million milestone of concurrent users online today: 17 million at 17h34 GMT (my clock in the screenshot is GMT+1)!!! This is the fifth time since September 2008! This is quite remarkable, because, 
Last (so far), but not least, is the ability to track Skype 
Long-distance relationships are the wave of the future, so hop on the Skype train and ride. 
Join the Skype 5.X Text Chat Room
