 unique identifiers. The specified wavelengths, like the labels, make it possible for routers and switches to perform necessary functions automatically, with- out having to extract instructions regarding those functions from IP addresses or other packet information. MP-MLQ (Multipulse Maximum Likelihood Quantization) An ITU compression standard that reduces voice to 4.8Kbps and can permit up to 10 voice channels on a single 64Kbps connection. MPOA (Multiprotocol over ATM) An ATM Forum standard for linking a number of local networks across an ATM backbone that caters to many different network protocols. mrouter (multicast router) A router that enfolds IP packets in special multicast packets and forwards them toward a destination mrouter. MSAU (multistation access unit) A device that enables workstations on a LAN to be cabled in a star configuration. Also known as a token-ring hub. MSO (multiple-system operator) A cable TV operator of multiple cable systems. MSP (management service provider) A provider that takes over the actual management and monitoring of a network. MSPP (multiservice provisioning platform) A product designed to deliver convergence, revenue generation, and cost reductions on a single edge device. The multiservice edge is an emerging market segment of edge devices optimized for converging Layer 2/Layer 3 services over IP/MPLS. An MSPP can handle all the popular data protocols and interfaces on the access side, and it can interface to high-speed optical links on the transport side of the network. MSS (Mobile Satellite Service) A satellite network that is an IMT-2000 system that can be used worldwide. MSS is intended to take over when a user is out of range of terrestrial base sta- tions. MSS is expected to offer services similar to those of terrestrial cellular networks, including data at ISDN speeds, toll-quality voice, video, and multimedia messaging. However, given the level of multinational cooperation required to achieve global availability, MSS is not likely to be realized as a solution anyti