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.
Bara Phone Ltd. Is registered UK company in London, we are interconnected to tier one carriers using TDM and VOIP service to deliver high quietly service to its B2B and end user clients along with competitive international rates.