Companies can now deliver training programs globally for a fraction of past costs. Training no longer requires employees to travel to a corporate office, reducing employee productivity with related travel time. Now specialized training can be delivered in real-time at remote locations, letting employees immediately apply much of what they learn to their job. Deploying VOIP on an internal network is feasible today because network administrators have full control over the network design and can ensure adequate bandwidth is available. Using the public Internet though is problematic.
All traffic is treated equally.
This means that on congested links, VOIP packets are just as likely as any other to be lost or slowed down in delivery. Unfortunately, lost packets in the VOIP world cannot be re-sent and thus quality suffers. Some Internet service providers are beginning to offer VOIP services, which are simply standard Internet connections with QoS technologies installed. As these service offerings improve, companies will be able to move to complete VOIP solutions that using the public Internet, potentially savings a lot in long-distance charges every year. To get the most out of your desktop video conferencing, video distribution, and potentially VOIP services on your network, you will need to start learning about QoS and the products that support these capabilities.