Siemens Enterprise OpenStage 40 SIP IP-phone is a great solution for people working in the permanent place. This model features a large display and easy setup of various protocols such as TDM, HFA and SIP.
Peneo is a leading-edge technology firm specializing in VoIP (Voice over IP) solutions to lower telecom costs for residential consumers (B2C), commercial businesses (B2B), and callshops/Internet cafes.