Hi,I have few questions.1) INVITE with codec1,codec2,codec3200ok with codec2, codec3. Is this ok to add codec3? 2)INVITE with codec1,codec2,codec3183 received with codec2.Update Received with codec4In early dialog state is this valid? 3)INVITE with codec1,codec2,codec3183 received with codec2.Update send with codec4In early dialog state is this valid? 4)INVITE with codec1,codec2,codec3200 OK received with codec2.--call is connectedUpdate Received with codec4 5) if SDP offer has RR and RS=0.can answer be non-zero RR and RS?RR in offer should be equal to RS in answer right? Can you please help in understanding these?
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