XBlue XB2500-04 X-25 4-VoIP Phone Bundle Save Money with "XBLUE Easy Self-Install" and US Based Free Personal Installation Support Connect Up To 8 lines - 4 Standard Telephone Lines and 4 XBLUE Cloud VoIP Telephone Lines System Expands Up To (16) X-25 VoIP Telephones and (1) Standard Cordless Telephone Includes Complete System Feature Set, Auto Attendant, Voice Mail & Off-Site Extension Capability Bundle includes X-25 Server, (4) VoIP Phones w/ Power Supplies & (1) 8 Port Network Switch