2009年综合集群网项目选型(TDM-PBX、IP-PBX、IAD和AG设备)技术规范书1***通信集团广东有限公司2009年综合集群网项目选型(TDM-PBX/IP-PBX/IAD/AD设备)技术规范书***广东公司2009年2月2009年综合集群网项目选型(TDM-PBX、IP-PBX、IAD和AG设备)技术规范书21、概述··················································································.......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................82、工程描述··········································································..................................................................................................................................................................................................................................................-PBX.................................................................................................................-PBX.................................................................................................................................................................................................................................................................................................................................................................................123、技术规范··········································································-PBX规范................................................................................................................................
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