The HSS (Home Subscriber Server) is the concatenation of the HLR (Home Location Register) and the AuC (Authentication Center) â two functions being already present in pre-IMS 2G/GSM and 3G/UMTS networks.
Three Days Grace's music has been described as post-grunge, hard rock, alternative rock, alternative metal and nu metal. Their self-titled album mostly uses the sounds of alternative metal and post-grunge. However, on their second album One-X, the band had more guitar solos and a more melodic sound.
Adam Wade Gontier (born May 21, 1978 in Northwood, Ontario, Canada) is the lead singer and rhythm guitarist of three days grace. Gontier was influenced by his mother, as welâ¦l as The Beatles, Sunny Day Real Estate, Jeff Buckley, Pearl Jam, and Alice in Chains.