| http://www.w3.org/ns/prov#value | - can include application level gateways (ALGs) for VoIP protocols, and Session Border Controllers; employ IPsec or Secure Shell (SSH) for all remote management and auditing access, and if practical, avoid using remote management at all and do IP-PBX access from a physically secure system; and if performance is a problem, use encryption at the router or other gateway, not the individual IP phones o
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