Gpt-realtime-2 and 2.1 models - RTP streams - each packet as Marker set to 1 (True) - This is not normal

API
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Hello Dear Team

Hope you are OK!

Can you please have a look at this capture.

image
image1813×883 199 KB

Notice that each packet has Marker set to 1 (true)

Every audio packet has byte 1 set to 0x80.

  • Bit 7 (Marker Bit) = 1 (True)

  • Bits 0–6 (Payload Type) = 0 (PCMU)

This is not normal.

Marker Bit should be 1 when you need to mark the first packet of a talkspurt… (or resuming from a period of silence)

Under normal VoIP operation without silence suppression (VAD), the Marker bit should be 1 only on the very first packet of the stream to signal the start of playout, and 0 for all subsequent continuous audio packets.

Can you guys check this and let us know please? I have a dump for you but I cannot seem to be able to attach it. But simply make a realtime call and capture the traffic.

At your disposal for anything you need.

Thanks so much

God bless