M7Q35: Unified Communications

Question 1

Unified Communications is the combination of the following services all unified into a single integrated system.

(choose all that apply)

A. Phones and voicemail
B. Video
C. Faxing
D. Chat and messaging

Answer 1

A. (Phones and Voicemail), B. (Video), C. (Faxing), D. (Chat and Messaging)

Question 2

Traditional PBX based phone systems are able to integrate with an IP network and use the same Ethernet network infrastructure.

A. True
B. False

Answer 2

B. False

Explanation: Traditional phone system infrastructure is based on 2 pair twisted pair cabling with RJ-11 style connectors. Traditional phone systems run on their own separate infrastructure and are managed by a PBX which is not connected to the IP and Ethernet network. Voice over IP on the other hand allows for complete convergence of the phone and computer network infrastructures and provides for
integrated computer and phone system features.

Question 3

This type of UC component connects the Voice over IP System to the Public Switched Telephone Network.

A. IP Phone
B. UC Device
C. UC Server
D. UC Gateway

Answer 3

D. UC Gateway

Explanation: The UC Gateway is an IP Router that includes special hardware and software that is capable of integrating with the voice over IP network and phone system trunking technology such as SIP (Session Initiation Protocol) trunks and PRI (Primary Rate Interface) lines. UC Servers are the call control systems and route external calls through the UC Gateway in order to send outbound calls out to the PSTN.

Question 4

RTP (Real Time Transport Protocol) is used to carrier the signaling traffic that setup a Voice over IP call.

A. True
B. False

Answer 4

B. False

Explanation: Signaling and call setup is performed by protocols such as SIP, H.323 and MGCP while the actual voice bearer traffic is carried by RTP (Real-Time Transport Protocol).

Question 5

This type of UC component is an end device such as an IP Phone or a conference station.

A. Router
B. UC Device
C. UC Server
D. UC Gateway

Answer 5

B. UC Device

Question 6

This type of UC component is the call control system that handles the primary call routing and connections phone calls from one IP phone to the other.

A. Router
B. UC Device
C. UC Server
D. UC Gateway

Answer 6

C. UC Server