An IP phone has a line calling search space and a device calling search space. If a call is made from the IP phone, which calling search space is used?
A. Neither calling search space is used.
B. The line calling search space takes precedence and is used.
C. The device calling search space takes precedence and is used.
D. The line and device calling search spaces are combined and the line calling search space has precedence.
Correct Answer: D Section: IP Phone Explanation
If you configure a calling search space both on an IP phone line and on the device (IP phone) itself, Cisco Unified Communications Manager concatenates the two calling search spaces and places the line calling search space in front of the device calling search space
Which command is used to determine if an MGCP gateway is registered with a Cisco Unified Communications Manager server?
A. show gateway status
B. show isdn q931
C. show ccm-manager
D. show isdn status
E. show isdn q921
Correct Answer: C Section: CUCM Explanation
Router# show ccm-manager MGCP Domain Name: router.cisco.com Total number of host: 2 Priority Status Host =================================================== Primary Registered 10.0.0.201 First backup Backup polling 10.0.0.50 Second backup Undefined Current active Communications Manager: 10.0.0.201 Current backup Communications Manager: 10.0.0.50 Redundant link port: 2428 Failover Interval: 30 seconds Keepalive Interval: 15 seconds Last keepalive sent: 00:20:18 (elapsed time: 00:00:06) Last MGCP traffic time: 00:20:18 (elapsed time: 00:00:06) Last switchover time: None Switchback mode: Immediate
A user exists within an office of IP phones, all of which have the same pickup group. A call comes into a phone of another office worker who is currently at lunch. What should the user do to have the call redirected to his or her phone?
A. Press the “Pickup” softkey and then the line that is ringing.
B. Press the “Call Pickup” softkey only.
C. Press the “Call Pickup” softkey and then the line that is ringing.
D. Press the “Pickup” softkey only.
Correct Answer: B Section: IP Phone Explanation
Cisco IP Phones provide three types of call pickup: call pickup, group call pickup, and other group call pickup.
Call pickup – Allows users to pick up incoming calls within their own group. Cisco CallManager automatically dials the appropriate call pickup group number when the user activates this feature from a Cisco IP Phone. Use the softkey, PickUp, for this type of call pickup.
Group call pickup – Allows users to pick up incoming calls in another group. User must dial the appropriate call pickup group number when activating this feature from a Cisco IP Phone. Use the softkey, GPickUp, for this type of call pickup.
Note: The same procedures apply for configuring call pickup and group call pickup features. Group call pickup numbers apply to lines or directory numbers.
Other group call pickup – Allows users to pick up incoming calls in a group that is associated with their own group. The Cisco CallManager automatically searches for the incoming call in the associated groups to make the call connection when the user activates this feature from a Cisco IP Phone. Use the softkey, oPickup, for this type of call pickup.
What is the preferred analog signaling method to reduce glare?
A. loop start
B. ground start
Correct Answer: B Section: Basic Telephony Explanation
Loop-start signaling sends an off-hook signal that starts a call and an on-hook signal that closes the loop and ends the call. Loop-start trunks lack positive disconnect supervision, and users can experience glare when two calls seize the trunk at the same time.
Ground-start signaling provides current detection mechanisms at both ends of the trunk to detect off-hook signals. This mechanism permits endpoints to agree on which end is seizing the trunk before it is seized, and minimizes the chance of glare. Ground start provides positive recognition of connects and disconnects and is the preferred signaling method for PBX connections. Some PBXs do not support ground-start signaling, so then you must use loop-start signaling for the trunk interface.
What is the accepted maximum limit for good-quality voice connection delay?
A. 100 ms
B. 200 ms
C. 250 ms
D. 300 ms
Correct Answer: C Section: QoS Explanation
Range in Milliseconds -Description
0-150 -Acceptable for most user applications.
150-400 -Acceptable provided that administrators are aware of the transmission
time and the impact it has on the transmission quality of user applications.
Above 400 -Unacceptable for general network planning purposes. However, it is
recognized that in some exceptional cases this limit is exceeded.
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