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.
Spirited Broadband provides Business class services either by tradional circuitry or via IP. SBB specializes in trunking existing PBX`s and will be happy to serve your Business needs today.