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.
MaxiTEL Telecom provides high quality connections for businesses and also focuses on serving resellers. MaxiTEL provides an overall concept of telecom: VoIP, mobile data and voice, SMS, fax, DSL, Fiber.