Question 1 of 30
A company is planning to integrate its existing telephony system with Cisco Unified Communications Manager (CUCM) to enhance its collaboration capabilities. The IT team needs to ensure that the integration supports both SIP and H.323 protocols for interoperability with various endpoints. They also want to implement a dial plan that allows for seamless call routing between internal and external numbers. Given this scenario, which of the following configurations would best facilitate the integration while ensuring optimal performance and reliability?
Configure a SIP trunk to connect CUCM with the existing telephony system and set up route patterns for internal and external calls.
Use H.323 gateways exclusively for all call routing to avoid complexity in the dial plan.
Implement a mixed environment with both SIP and H.323 trunks but limit the dial plan to internal calls only.
Establish a direct connection between endpoints and the existing telephony system without involving CUCM.

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