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300-815 · Question #19
300-815 Question #19: Real Exam Question with Answer & Explanation
The correct answer is D: c= line of SDP content. See the full explanation below for the reasoning.
Signaling and Media Protocols
Question
End users in a new site report being unable to hear the remote party when calling or being called by users at headquarters. Calls to and from the PSTN work as expected. To investigate the SIP signaling to troubleshoot the problem, which field can provide a hint for troubleshooting?
Options
- AContact: header of the 200 OK response
- BAllow: header if the 200 OK response
- Co= line of SDP content
- Dc= line of SDP content
Topics
#SIP Troubleshooting#SDP#One-way Audio#Media Negotiation
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