Methods, apparatuses and systems facilitating the aggregation or bonding of physical communications links into higher-bandwidth logical links. A novel link bonding and encapsulation protocol scheme that optimizes the efficiency of data transfer across the physical links, while still allowing for desired Quality of Service (QoS) levels to high-priority traffic, such as voice data, with low delay requirements. Data streams are divided and concurrently transported over multiple physical links that are aggregated or bonded together to form one logical link. At the receive end, the original cell streams are recovered from the bonded logical links. In one embodiment, the physical links are xDSL links transmitting and receiving signals via conventional copper twisted-pair cabling. In one embodiment, the present invention allows telecommunications service providers to leverage their investments in existing twisted pair connection technologies to deliver high-bandwidth services to customers in a fast and cost-efficient manner.