Cisco CCIE Voice Written Sample Questions:

1. Company Alpha has a central office and a branch office that utilize a central call processing toplogy. Calls between the two sites are using the G.729 codec; calls within each site are using the G.711 codec.
To conference an existing call between two phones at the central site with a phone at the remote office, which two of the following are possible solutions? (Choose two.)

A) a software conference bridge that is configured in Cisco Unified Communications Manager
B) a hardware conference bridge
C) a software conference bridge that is configured in Cisco Unified Communications Manager and a HW transcoder
D) a hardware transcoder and a hardware conference bridge
E) No extra configurations required--phones automatically negotiate using the lowest common denominator codec (G.729)

2. Refer to the exhibit.

This Cisco Unified Communications Manager trace shows a SIP message that is sent by a SIP Cisco Unified IP Phone 7965 to Cisco Unified Communications Manager. Which of these regarding the content of this SIP message is correct?

A) keepalive message to the secondary Cisco Unified Communications Manager E. phone registration message to the primary Cisco Unified Communications Manager during fallback
B) keepalive message to the primary Cisco Unified Communications Manager
C) phone registration message to the primary Cisco Unified Communications Manager
D) phone registration message to the secondary Cisco Unified Communications Manager during a server failover

3. How is fax pass-through traffic treated over IP WAN connections that use the G.729 codec?

A) The fax traffic is demodulated and sent with VAD and echo chancellor disabled.
B) The contacting fax machine sends a TCF message to the contacted fax machine and waits for a CFR message. When the CFR message is received, the fax tones sent by the contacting fax machine cause the OGW to send an NSF message to the TGW, instructing it to switch to the
C) 711 codec with echo chancellor and VAD disabled.
D) When the TGW detects the CED tone from the fax machine that has been contacted, the TGW changes to the G.711 codec with echo chancellor and VAD disabled.
E) When the OGW detects the CED tone from the fax machine that is making the call, the OGW is informed by the contacted device of the Cisco NSF features and switches to the G.711 codec with VAD disabled.

4. Refer to the exhibit.

This Cisco Unified Communications Manager trace shows a SIP message that was sent by a SIP Cisco Unified IP Phone 7965 to Cisco Unified Communications Manager. Which of these about the content of this SIP message is correct?

A) phone registration message to the primary Cisco Unified Communications Manager during fallback
B) keepalive message to the primary Cisco Unified Communications Manager
C) phone registration message to the primary Cisco Unified Communications Manager
D) keepalive message to the secondary Cisco Unified Communications Manager
E) phone registration message to the secondary Cisco Unified Communications Manager during a server failover

5. Refer to the exhibit.

The log was captured for a Cisco Unified Presence client that is not able to perform desk phone control to a Cisco IP phone. Which two of these could be the potential causes that are revealed by the log? (Choose two.)

A) The Cisco CTIManager service is not running on Cisco Unified Communications Manager.
B) The CTI gateway profile is not added to the user application profile in Cisco Unified Presence.
C) The IP phone is not registered.
D) The Standard CTI Enabled group is not added to the Cisco Unified Presence user in Cisco Unified Communications Manager.
E) The IP phone is not configured with "Allow Control of Device from CTI."
F) The directory number of the IP phone is not configured with "Allow Control of Device from CTI."

Solutions: