U.S. federal trademark · Serial No. 98867668 · Reg. No. 8037167
PBX, KEY, and IP-PBX telephone systems comprised of online, non-downloadable software for interfacing with traditional public switched telephone network (PSTN), plain old telephone services (POTS), time division multiplexing (TDM), foreign exchange subscriber (FXS), and foreign exchange office (FXO) services as well as voice over IP, session initiation protocol (SIP), and H.323 communications technologies
PBX, KEY, and IP-PBX telephone systems comprised of both hardware and downloadable software for interfacing with traditional public switched telephone network (PSTN), plain old telephone services (POTS), time division multiplexing (TDM), foreign exchange subscriber (FXS), and foreign exchange office (FXO) services as well as voice over IP, session initiation protocol (SIP), and H.323 communications technologies
telephone services, namely, providing PBX, KEY and IP-PBX telephone systems that interface with traditional public switched telephone network (PSTN), plain old telephone services (POTS), time division multiplexing (TDM), foreign exchange subscriber (FXS), and foreign exchange office (FXO) services as well as voice over IP, session initiation protocol (SIP), and H.323 communications technologies
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.