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.
We are one of the leading wholesale VoIP Termination service providers in UK providing an efficient and most reliable VoIP service to Calling Card Companies, Call Shops, Call Centers, ISP/ITSP, Business Enterprise and more.