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 a provider of a technology called VoiceOverIP or VOIP. This technology allows you to make phonecalls though the internet which cuts out the need for your standard phone line. Because it cuts out your phone operator, it means it saves you money on y