A call leg is a virtual connection that is set up and torn down before the dial peer is established.

The call leg and the dial peer are both physical connections used to complete an end-to-end call.

Which of the following is not the function provided by a switching system in a traditional telephony
network?

Which two of the following signaling protocols are peer-to-peer protocols? (Choose two)

A PRI (Primary Rate Interface) is a telecommunication standard used in the Integrated Services
Digital Network or ISDN, for carrying multiple DS0 voice and data transmissions between two
physical locations. PRI was developed specifically for industrial or large quantity users. PRI is an
industrial ISDN line while the Basic Rate Interface, or BRI, is used to cater to home and small
enterprises. Which three characteristics apply to ISDN PRI? (Choose three)

Case Study#1
Instructions:
This task requires you to access the Cisco Unified Communications 500 Series GUI to configure
it per the given requirements as stated in the scenario.
From the choices on the left you may select Scenario, Cisco Unified Communications Server
(CUC) Device, or Topology. The Scenario link provides the details of the task to be
accomplished. The Topology link displays the network. To get access to UC500, click on the PC
shown in the Topology or you can click on the CUC Device button on the left.
Scenario:
You have been asked to implement an SBCA solution for a startup company that has two
technical support staff. The lP Phones use 4 digit extensions starting with 5001. Using the
information in tables 1 and 2, configure the following:
1. Configure the AA & Voicemail features
2. Add the two IP Phones with extensions/users given in table 2 including Voicemail.
3. Configure Hunt Group so that all incoming PSTN calls always go to extension 5001. If
extension 5001 is not available, route the call to extension 500:
If both extensions are busy or unavailable then send the call to Voicemail
Table1

Phone Primary Ext. LastName FirstName UserID
00115C0E5EDA 5001 (Phone1I Doe John Jdoe
003094C3 D18C 5002 (Phone2) Brown Jane jbrown
CUC Device:
Topology:

Case Study# 2
Instructions:
To configure the Cisco Unified Communications Manager Express click on the console host icon
that is connected to a Cisco Unified Communications Manager Express by a serial console cable
(shown in the diagram as a dashed black line).
You can click on the buttons below to view the different windows. Each of the windows can be
minimized by clicking on the [-]. You can also reposition a window by dragging it by the title bar.
The “Tab” key and most commands that use the “Control” or “Escape” keys are not supported
and not necessary to complete this simulation. The help command does not display all
commands of the help system.

Scenario:
You are required to manually configure a Cisco Unified Unified Communications Manager
Express to support two IP phones with directory numbers starting with 5001.
The phones need to be configured as dual-line phones as per the following table:
The Cisco Unified Communications Manager Express should be configured as a DHCP and TFTP
server.
The IP phones should obtain their IP addresses via DHCP in the range 10.3.130.10 –
10.3.130.254. IP addresses in the range 10.3.130.1 to 10.3.130.9 should be excluded.
The IP phones are connected to an EtherSwitch module, interface GigabitEthernet1/0 on a Cisco
2811 router as per the topology diagram. The voice VLAN ID is 130 and default router for the IP
phones is 10.3.130.1.
The EtherSwitch module has been preconfigured and is not configurable.
You are also required to configure a second directory number 5010 as a shared directory number
on line 2 of each IP phone.
Topology: