A Mobile Wireless Local Loop (WLL) is an access solution deployed using standardized cellular or low-mobility infrastructure and mobile devices. This primarily includes technologies such as cdmaOne (IS-95A and B), cdma2000 1x RTT, Personal HandyPhone System (PHS) and personal access communication services (PACS). For commercial or regulatory reasons, mobile WLLs are not operated as full mobility cellular services, even though the networks may be technically capable of supporting such services. Personal Access System (PAS) is a trademark of UTStarcom for its portfolio of mobile WLL products based on the PHS standard.