Additionally, organizations that own an IP PBX do not have to incur the additional infrastructure costs that are required to maintain and manage separate circuit-switched and packet-switched networks.

• 此外,拥有IP PBX的组织不会带来额外的基础结构成本,但这是维护和管理独立的电路交换网络和数据包交换网络所必需的成本。