H11-811 · Question #221
The eSpace IPT solution architecture consists of several layers including terminal access, call control, and service application layers. Which of the following components belongs to the call control…
The correct answer is B. U1960. U1960 is a Huawei Unified Communications Server (UCServer) - a soft switch responsible for call routing, signaling, and call processing, which are core call control layer functions. It sits at the heart of the eSpace architecture, managing how calls are set up, maintained, and…
Question
The eSpace IPT solution architecture consists of several layers including terminal access, call control, and service application layers. Which of the following components belongs to the call control layer?
Options
- AIAD1224
- BU1960
- CeSpace 7910
- DeSpace 8950
How the community answered
(44 responses)- A5% (2)
- B77% (34)
- C14% (6)
- D5% (2)
Explanation
U1960 is a Huawei Unified Communications Server (UCServer) - a soft switch responsible for call routing, signaling, and call processing, which are core call control layer functions. It sits at the heart of the eSpace architecture, managing how calls are set up, maintained, and torn down across the network.
The distractors are all terminal access layer devices: the IAD1224 is an Integrated Access Device that bridges analog endpoints to the IP network, the eSpace 7910 is a desktop IP phone, and the eSpace 8950 is a video IP phone - all of which are end-user terminal devices, not control infrastructure.
Memory tip: Think of the layers from bottom to top - Terminals (phones/IADs) → Control (U1960 server) → Services (applications). The "U" in U1960 stands for Unified control - it's the one server that unifies all call management. Any device with "eSpace" + a 4-digit model number is a phone (terminal); anything with "U" + a number is a server (control).
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