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Exam : Nortel 920-450
Title : Communication Server (CS) 1000 Rls.4.0
Version : Demo


1. A company has a Meridian 1 Option 81C Rls. 25.40 system that is supporting 2,000 users at their headquarters. They plan to install a Communication Server (CS)1000 Rls. 4.0 system in a second building to support 500 new employees. Both systems use Direct Inward Dialing (DID) for all stations. Some extensions numbers are duplicated in each system.
The new CS 1000 Rls. 4.0 system will network with the existing Meridian 1 at the headquarters building. They want to implement the shortest possible dialing sequence internally.
The company does not want to modify the existing Meridian 1 hardware configuration, but wants to implement location based dialing sequence between buildings.
Which two requirements should be combined to create a multi-site distributed system to meet the customer requirements? (Choose two.)
A. Implement a Unified Dialing Plan (UDP) system wide.
B. Use PSTN trunks to complete the calls between the sites.
C. Implement a Coordinated Dialing Plan (CDP) system wide.
D. Add a Signaling Server including an H.323 gateway at headquarters.
E. Enable IP Peer Networking between the CS 1000 and the Meridian 1.
F. Use H.323 and MCDN to implement telephony features transparently between the two systems.
Answer: AB

2. A company with an existing two-site Communication Server (CS) 1000 Rls. 4.0 system plans to open two small branch offices. Each one will have 40 station users and 10 analog voice-grade devices (analog telephones, fax terminals, and modems). Which items should you combine to create a CS 1000 Rls. 4.0 solution for each branch office that fully integrates them into the existing system with survivability that meets their needs? (Choose three.)
A. One Call Server
B. One Signaling Server
C. 50 analog or IP telephones
D. One Media Gateway 1000B
E. 40 IP Phone 200x telephones
Answer: BDE

3. A customer is acquiring two competitors' operations. Once the merger is completed, they will have three Communication Server (CS) 1000 Rls. 4.0 systems networked together through LAN and WAN connections. With a mix of SIP Redirect Servers and H.323 Gatekeepers within each organization, how can this customer provide network-wide feature transparency?
A. By duplicating services and installation configurations across each location.
B. The customer should concentrate on location specific features, not all features would be desired at all locations.
C. Migrate IP Peer Networking features to each group of SIP Servers and H.323 Gatekeepers over a period of time to expand feature similarity.
D. Migrate IP Peer Networking control to one Network Routing Service (NRS) managing all inter-Call Server IP telephone calls across the IP network with MCDN networking software.
Answer: D

4. Within the Coordinated Dialing Plan ( CDP) domain of a Campus Distributed Communication Server (CS) 1000 Rls 4.0 systems a number of Call Servers are coordinated so five-digit dialing can be performed. The steering code allocation is as follows:
Call Server A: Steering codes 7 and 8 (that is, DNs in the range 7xxxx and 8xxxx)
Call Server B: Steering code 6 (that is, DNs in the range 6xxxx)
A digital set user with the DN 84563 is moving and will be connected to Call Server B at their new location.
Is this location setup to enable the user to keep their assigned number after the move?
A. Yes. But the user will no longer be reachable using five-digit dialing.
B. No. A Transferable Directory Numbers (TNDN) numbering plan must be implemented.
C. No. There is never a requirement for a user to move from one Call Server to another.
D. Yes. The CDP steering codes are setup to enable the user to keep their current number.
Answer: B

5. A company has a Meridian 1 Option 81C Rls. 25.40 system that is supporting 2,000 users at their headquarters. They just acquired a second building to support 500 new employees and plan to install a Communication Server (CS) 1000 Rls. 0 system there. They plan to network it to the Meridian 1 system at the headquarters by installing IP Trunk 3.0 through a private IP network. They also require that the Trunk Anti -Tromboning (TAT) feature be implemented between the sites due to limited available bandwidth. Which trunking protocol should you propose?
A. MCDN
B. ISDN PRI
C. SIG and H.225
D. 225 and Q.931
E. 931 and Q.933
Answer: A

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