The difference between ADSL and VDSL
ADSL stands for Asymmetric Digital Subscriber Line and is the most widely available DSL service. VDSL stands for Very-High-Bit-Rate Digital Subscriber Line with less availability than ADSL. ADSL is capable of maximum 20Mbps and VDSL is capable of speeds up to 40Mbps. Both these maximum speeds are dictated by Openserve’s infrastructure.