Which security measure can be implemented on a SIP trunk to prevent unauthorized use and toll bypass?

Using a shared secret for all trunks

Setting the trunk to allow all IP addresses

SIP trunk authentication using digest credentials

Disabling the trunk's media encryption

What is the primary purpose of a route filter in Cisco UCM?

To prioritize calls to specific gateways

To restrict which numbers can be dialed by filtering the digits that match a route pattern

To translate dialed digits into a different format

To authenticate users before they can make calls

A mid-sized company uses Cisco UCM with a single PSTN gateway. The finance department notices a spike in the monthly phone bill, with many calls to international destinations during off-hours. The UCM administrator reviews the CDR reports and sees calls originating from a specific IP phone in the conference room, but the phone was physically unused during those times. The administrator suspects a compromised device or a misconfigured route. Which combination of actions should the administrator take FIRST to confirm the attack vector and prevent further toll fraud?

Disable the conference room phone's line, review the CDR for the exact dialed numbers, and check the device's CSS and partition assignments for overly permissive access.

Change the PSTN gateway's authentication password and restart the gateway to clear any active sessions.

Use the Real-Time Monitoring Tool (RTMT) to trace the call, then reset the phone's security profile to default.

Immediately delete all international route patterns from the route group and then review the CDR to identify the source.

A university has a Cisco UCM system with separate partitions for 'Faculty', 'Students', and 'PSTN'. The 'PSTN' partition contains route patterns for local, national, and international calls. The administration wants to ensure that student phones can only make local calls, while faculty phones can make local and national calls. Which configuration will achieve this requirement?

Create a new partition 'PSTN_Local' with only the local route pattern, assign it to the student device CSS, and keep the 'PSTN' partition in the faculty device CSS.

Create a new calling search space for students that includes the 'PSTN' partition and a new partition 'Blocked' with a route pattern for all international calls.

Remove the 'PSTN' partition from the student device CSS and add a new route pattern for local calls directly to the student device.

Add a translation pattern to the student CSS that blocks all numbers starting with 0, and keep the 'PSTN' partition in the student CSS.

What is the purpose of device authentication in Cisco UCM?

To ensure that only authorized phones can register and make calls

To limit the number of calls a device can make

To provide a backup for the UCM database

CiscoCertified Network Professional Collaboration

Domain 3Objective 2

3.2 Implement Toll Fraud Prevention in Cisco UCM 350-801 Practice Questions (Page 3)

Part of the On-Premises Call Control domain, which accounts for 30% of the 350-801 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~15–24 in this domain), expect 2–3 from this objective — we provide 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

10concepts

30%of the exam

10 Concepts in This Objective

Toll Fraud Attack Vectors
Cisco UCM Toll Fraud Prevention Features
Configuring Route Filters and Partitions
Implementing Calling Search Spaces (CSS)
Class of Service (CoS) Restrictions
Translation Patterns and Route Patterns for Fraud Prevention
Monitoring and Auditing Call Activity
Securing Gateways and Trunks
User and Device Authentication Controls
Best Practices for Toll Fraud Prevention

Questions 11–15

11foundation · easy
Which security measure can be implemented on a SIP trunk to prevent unauthorized use and toll bypass?
Select an answer first
12foundation · easy
What is the primary purpose of a route filter in Cisco UCM?
Select an answer first
13expert · hard
A mid-sized company uses Cisco UCM with a single PSTN gateway. The finance department notices a spike in the monthly phone bill, with many calls to international destinations during off-hours. The UCM administrator reviews the CDR reports and sees calls originating from a specific IP phone in the conference room, but the phone was physically unused during those times. The administrator suspects a compromised device or a misconfigured route. Which combination of actions should the administrator take FIRST to confirm the attack vector and prevent further toll fraud?
Select an answer first
14application · medium
A university has a Cisco UCM system with separate partitions for 'Faculty', 'Students', and 'PSTN'. The 'PSTN' partition contains route patterns for local, national, and international calls. The administration wants to ensure that student phones can only make local calls, while faculty phones can make local and national calls. Which configuration will achieve this requirement?
Select an answer first
15foundation · easy
What is the purpose of device authentication in Cisco UCM?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to 350-801

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Cisco. “350-801” is a trademark of its owner, used for identification only.

3.2 Implement Toll Fraud Prevention in Cisco UCM 350-801 Practice Questions (Page 3)

Questions 11–15

Which security measure can be implemented on a SIP trunk to prevent unauthorized use and toll bypass?

What is the primary purpose of a route filter in Cisco UCM?

What is the purpose of device authentication in Cisco UCM?

Keep studying — On-Premises Call Control