Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 199

The administrator of ABC company is troubleshooting a one-way audio issue for a call that uses H.323 protocol (slow-start mode). The administrator requests that you provide the IP and port information of the Real-Time Transport Protocol traffic that had the one-way audio call.
You gather the H.225 and H.245 messages for one of the one-way audio calls. Where can you find the RTP IP and port information for both sides? (Note: This call flow has not invoked any media resources like MTP or transcoders).

Answer options

Correct answer: B

Explanation

The RTP IP and port information for both sides is found in the H.245 Open Logical Channel message, which specifies the media stream parameters. The H.245 Terminal Capability Set and H.225 Connect messages do not contain this information, and the H.245 Open Logical Channel Ack is a response that confirms the channel setup but does not provide the initial RTP details.