A collaboration engineer has been asked to implement secure real-time protocol between a Cisco Unified CM and its SIP gateway. Which option is a consideration for this implementation?
A. only T.38 and Cisco fax protocol are supported
B. SIP require the all time be sent in GMT
C. Call hold RE-INVITE is not supported
D. SRTP is supported only in cisco IOS 15.x and higher
A collaboration engineer has been asked to implement secure real-time protocol between a Cisco Unified CM and its SIP ga
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A collaboration engineer has been asked to implement secure real-time protocol between a Cisco Unified CM and its SIP ga
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