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.
SHENZHEN HYBERTONE TECHNOLOGY CO.,LTD
Providing:
Telephone Terminals
Broadband Gateways
Relay Proxy
Routers
GSM VoIP Gateways
GSM VoIP
Radio over IP
RoIP
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