Friday, October 28, 2011

Cisco plans free telepresence client

PC and Mac users will be able to join a meeting with an e-mail invitation and a download

IDG News Service - Cisco Systems is taking several steps to extend its TelePresence videoconferencing technology beyond enterprise meeting rooms, introducing two endpoints and a free client application for ad hoc participants to download.




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To mark the fifth anniversary of its introduction of TelePresence, Cisco previewed several new offerings during a press event held Tuesday at its TelePresence proving ground in San Jose, California. The products are due to be announced Wednesday. At the event, Cisco emphasized that its videoconferencing technology is becoming more accessible, five years after the company unveiled the three-screen TelePresence 3000 room system then priced at nearly $300,000 per room.

"TelePresence is no longer restricted to the boardroom. It is now ... wanted everywhere," said Jacob Nordan, director of product management in Cisco's Infrastructure Business Unit, who joined the meeting from Oslo via TelePresence. Cisco's emphasis echoes what analysts and other vendors have said over the past year, focusing on the growth potential for desktop and mobile videoconferencing.

At the event, the company unveiled Cisco Jabber Video for TelePresence, a free application designed to let just about anyone with a PC or Mac join a TelePresence session. An enterprise or small business with an in-house or hosted TelePresence capability can go to a globally accessible website and create an invitation that goes out to customers, partners or other participants via e-mail. The participants will receive an e-mail with a link to download the Jabber Video software and join the meeting.

Jabber Video for TelePresence is going into beta testing soon and is expected to become generally available early next year, said Gina Clark, vice president and general manager of the TelePresence Cloud business unit. It currently is an English-language product but people all over the world will be able to download it, she said.

Cisco also introduced the MX300, a new model in its line of value-priced TelePresence endpoints for small and medium-size businesses. The MX300 is a step up from the MX200 introduced earlier this year, featuring a 55-inch (139.7 centimeters) display compared with the MX200's 42-inch. The new unit can deliver videoconferences at 1080p resolution and 30 frames per second and is suitable for as many as nine people in a room, Cisco said. The unit is designed to be set up in less than 15 minutes. It is scheduled to hit the market in January for a list price of $27,600.

Also on Tuesday, the company announced the Cisco TelePresence VX Clinical Assistant. This endpoint is designed for use in medical applications, including remote patient consultations and medical education. The VX is set to go on sale in the first quarter of next year in the U.S. and Europe, starting at $29,500.

Tuesday, October 25, 2011

642-436 Exam

QUESTION 1
Which two statements describe the purpose of the technology prefix? (Choose two.)

A. Technology prefixes are configured on gateways to indicate to the gatekeeper whether they
support voice or video.
B. Technology prefixes must always be configured on gateways.
C. Technology prefixes are used to identify different types or classes of gateways.
D. Technology prefixes are prepended to the destination address by the gateway.
E. Technology prefixes have to be unique on each gateway.






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Answer: C,D

QUESTION 2
Which statement is true about only out-of-band signaling?

A. A signaling bit is robbed from each frame.
B. Signaling bits are sent in a special order in a dedicated signaling frame.
C. All signaling is directly associated with its corresponding voice frame.
D. All voice packets carry their own signaling.

Answer: B

QUESTION 3
Examine the example output.
hostname GW1
!
interface Ethernet 0/0
ip address 172.16.2.1 255.255.255.0
h323-gateway voip interface
h323-gateway voip id GK1-zone1.abc.com abc.com ipaddr 172.16.2.2
h323-gateway voip h323-id GW1
h323-gateway voip bind srcaddr 172.16.2.1
!
dial-peer voice 1 voip
destination-pattern 1212.
session-target ras
!
dial-peer voice 2 pots
destination-pattern2125551212
no register e164
!
end
Choose the command that will restore communication with gatekeeper functionality to this device.

A. h323-gateway voip h323-id GK1
B. gateway
C. h323-gateway voip bind srcaddr 172.16.2.2
D. h323-gateway voip GW1-zone2.abc.com abc.com ipaddr 172.16.2.1

Answer: B

QUESTION 4
Refer to the exhibit. Which two actions would be initiated by a UAS? (Choose two.)


A. Contacts the user when a SIP invitation is received
B. Originates the REFER method to initiate call termination
C. Returns a response on behalf of the user to the invitation originator
D. Originates the INVITE method including a description of the session parameters
E. Originates the ACK method to indicate that it has received a response to an invitation

Answer: A,C

QUESTION 5
Which option is true concerning the MGCP call agent?

A. Acts only as a recorder of call details
B. Provides only call signaling and call setup
C. Manages all aspects of the call and voice stream
D. Monitors the quality of each call after setup

Answer: B

QUESTION 6
Which statement best describes gatekeeper operation when the technology prefix is matched and
the gatekeeper is using the technology prefix with hopoff?

A. The gatekeeper always forwards the call to the zone specified in the hopoff command.
B. The gatekeeper only forwards the call to the hopoff zone if the zone prefix does not match.
C. The gatekeeper attempts to forward the call to the hopoff zone, but if this fails, it will forward the
call to the zone specified in the zone prefix command.
D. The gatekeeper attempts to forward the call to the zone specified in the zone prefix command
first, but if this fails, it will forward the call to the zone specified in the hopoff command.

Answer: A

QUESTION 7
Refer to the exhibit. All IP phones are SCCP phones. Phone D makes an internal call to phone G.
Which call setup signaling statement is true?


A. Phone D signals phone G directly. Call setup is handled by the phones.
B. Phone D signals gateway A, which processes the call and signals phone G.
C. Phone D signals gateway B, which processes the call and signals phone G.
D. Phone D signals gatekeeper. The gatekeeper processes the call and signals phone G.
E. Phone D signals the call agent. The call agent processes the call and signals phone G.

Answer: E

QUESTION 8
Refer to the exhibit. All IP phones use SCCP. Fax machine F calls fax machine J. Which call setup
signaling statement is correct?


A. Fax F signals Fax J directly. Call setup is handled by the fax machines.
B. Gateway A processes the call and signals gateway B. Gateway B processes the request.
C. Gateway A signals the call agent. The call agent processes the call and signals gateway B.
D. Gateway A signals the gatekeeper. The gatekeeper processes the call and signals gateway B.
E. Gateway A processes the call and signals gateway B. Gateway B processes the call. During the
setup, the gateways query the gatekeeper for address resolution and call setup permission.

Answer: E

QUESTION 9
Refer to the exhibit. Three department managers share the directory number 3000. The
Marketing manager's phone is attached to port 1/1. The Engineering manager's phone is attached
to port 1/2. The Shipping manager's phone is attached to port 1/3. In which situation would an
incoming call ring on the Shipping manager's phone?


A. The Marketing manager is on the phone.
B. None of the managers are on the phone.
C. The Engineering manager is on the phone.
D. The Shipping manager and Marketing manager are on the phone.
E. The Engineering manager and Marketing manager are on the phone.

Answer: E

QUESTION 10
DRAG DROP
Using Cisco Unified Communications Manager Express, what four steps are necessary to
implement COR? (Choose four.)



Answer:



Explanation: