As a voice engineer, which two recommendations do you to make to your company to optimize Cisco Unified Communications Manager configuration to reduce the number of toll fraud incidents? (Choose two.)
Click on the arrows to vote for the correct answer
A. B. C. D. E.BE.
Toll fraud incidents are a significant concern for organizations that use Cisco Unified Communications Manager (Unified CM) for their voice communication needs. Toll fraud occurs when an unauthorized user gains access to the organization's telephony network and uses it to make expensive long-distance or international calls, resulting in high costs for the organization. As a voice engineer, you can recommend the following two configurations to your company to optimize Cisco Unified Communications Manager and reduce toll fraud incidents:
A. Classify all route patterns as on-net and prohibit on-net to on-net call transfers in Cisco Unified CM service parameters.
This recommendation involves configuring all the route patterns in Unified CM as on-net, which means that the calls remain within the organization's network and do not go outside to the public switched telephone network (PSTN). In addition, you should prohibit on-net to on-net call transfers in the Unified CM service parameters. This configuration can prevent toll fraud by blocking unauthorized users from making on-net calls or transferring them to other on-net destinations. However, it is essential to ensure that the organization's internal communication requirements are met and that legitimate on-net calls can still be made.
E. Inbound CSS on any gateway typically should have access to internal destinations only and not PSTN destinations.
This recommendation involves configuring the inbound calling search space (CSS) on any gateway to allow access to internal destinations only and not PSTN destinations. This configuration can prevent toll fraud by restricting unauthorized users' access to the organization's PSTN network. However, it is essential to ensure that the CSS is configured to allow legitimate calls to the PSTN network.
In summary, to optimize Cisco Unified Communications Manager and reduce toll fraud incidents, voice engineers can recommend configuring all route patterns as on-net, prohibiting on-net to on-net call transfers, and configuring the inbound CSS on any gateway to allow access to internal destinations only and not PSTN destinations.