SIP2.0 SS Vandal Resistant Telephone IP54 VoIP Desk Mounting
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JR211-FK IP65 VoIP Stainless Steel Vandal Resistant Telephone JR211-FK VoIP Stainless Steel Desk Telephone supports the hotline call, may realize the call to hang up automatically, which is suitable for tunnel, railway, underground mine, prison, guard room......
J&R Technology Limited
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