Cisco SIP IP Telephony Is Implemented on Two Floors of Your

question 55

Multiple Choice

Cisco SIP IP telephony is implemented on two floors of your company. Afterward, users report intermittent voice issues in calls established between floors. All calls are established, and sometimes they work well, but sometimes there is one-way audio or no audio. It is determined that there is a firewall between the floors, and the administrator reports that it is allowing SIP signaling and UDP ports from 20000 to 22000 bidirectionally. What are two solutions for this issue? (Choose two.)

• A) Go to the SIP profile assigned to these IP phones in Cisco UCM and change the range of media ports to 16384-32767
• B) Ask the firewall administrator to change the ports to TCP.
• C) Ask the firewall administrator to change the range of UDP ports to 16384-32767.
• D) Go to the SIP profile assigned to these IP phones in Cisco UCM and change the range of media ports to 20000-22000.
• E) Go to System Parameters in Cisco UCM and change the range of media ports to 20000-22000.

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