The SIP-T42G is a feature-rich sip phone for business.  Dual-port Gigabit Ethernet, Optima HD voice , 12 SIP accounts,  HD handset, HD speaker, 3-way conference call, local phonebook up to 1000 entries, Call recording, Power over Ethernet,  open VPN,   intuitive user interface with icons and soft keys, stand with 2 adjustable angles, wall mountable,   Using standard encryption protocols to perform highly secure remote provisioning and software upgrades. Without PSU.