A. Supported: 100rel B. Cseq: PRACK C. Require: 100rel D. Allow: PRACK E. Accept: 100rel
Home/Cisco 400-051 Exam/Which header field does a SIP User Agent Client use to advertise that it supports Provisional Response Acknowledgement? Cisco 400-051 Exam Which header field does a SIP User Agent Client use to advertise that it supports Provisional Response Acknowledgement? A. Supported: 100rel B. Cseq: PRACK C. Require: 100rel D. Allow: PRACK E. Accept: 100rel Answer: Option D. Explanation: No answer description available for this question Show AnswerDiscussion
