OpenScape Business IP user for 3 years SW Support Basis. License for the activation of IP system phones (HFA or SIP) and SIP phones for external telephony. Additional licenses are required to activate UC functions (e.g. voicemail, Smart UC, UC Suite). Can only be activated together with L30250-U622-B640 or L30250-U622-B641. A combination of user licenses for 1, 3 and 5 years SW Support Basis is not possible.