Different from frame relay or ATM systems, MPLS is an Internet protocol-based service over a virtual private network (VPN) that has the ability to tag and prioritize whether voice, video, or Internet traffic is moving over the system, and assign it the correct class of service. The result? Phone calls, even voice over Internet protocol (VoIP), have optimal sound, because they are correctly assigned the best class of service. Video service is less jumpy. Internet service, phones, and video can run across the system at the same time without a total meltdown.
“Voice and video traffic needs a class of