350-801 · Question #570
A company has a Cisco collaboration infrastructure that includes Cisco UCM and a Cisco Unified Border Element. The company CTO asks an engineer to improve security and implement toll fraud…
The correct answer is A. Classify the SIP trunk to Cisco Unified Border Element as OffNet. D. Set the Allow OffNet to OffNet Transfer Cisco CallManager service parameter to false. To prevent OffNet-to-OffNet call transfers (which can be exploited for toll fraud), you must properly classify calls and configure restrictions in Cisco Unified Communications Manager Classify the SIP trunk to Cisco Unified Border Element as OffNet This ensures that calls…
Question
A company has a Cisco collaboration infrastructure that includes Cisco UCM and a Cisco Unified Border Element. The company CTO asks an engineer to improve security and implement toll fraud prevention. The engineer configures partitions and a calling search space to provide segmentation and access control. Which two additional configurations are needed to block all OffNet to OffNet transfers? (Choose two.)
Options
- AClassify the SIP trunk to Cisco Unified Border Element as OffNet.
- BClassify all SIP devices as OffNet.
- CSet the Call Classification Cisco CallManager service parameter to OffNet.
- DSet the Allow OffNet to OffNet Transfer Cisco CallManager service parameter to false.
- ESet the Block OffNet to OffNet Transfer CallManager service parameter to true.
How the community answered
(65 responses)- A71% (46)
- B8% (5)
- C5% (3)
- E17% (11)
Explanation
To prevent OffNet-to-OffNet call transfers (which can be exploited for toll fraud), you must properly classify calls and configure restrictions in Cisco Unified Communications Manager Classify the SIP trunk to Cisco Unified Border Element as OffNet This ensures that calls passing through the trunk are considered external (OffNet). This classification helps in applying call restrictions effectively. Set the Allow OffNet to OffNet Transfer Cisco CallManager service parameter to false This setting explicitly prevents OffNet-to-OffNet transfers, stopping users from transferring external calls to another external destination, which is a common toll fraud scenario.
Topics
Community Discussion
No community discussion yet for this question.