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RTPMRx question

Hi,

When calling a RTPMRx URI on the IP phone, does the phone do an IGMP join etc to request the multicast stream? Or does it just open the speaker to RTP coming from that address that is already on the phones LAN segment?

I presume it does use IGMP becuase I can't find anything in the SDK that tells you how you can do this process manually.

Thanks,

Peter

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