[asterisk-dev] Meetme/Timing Basics

[Kevin P. Fleming]

Prakash Rao Kanthi wrote:

> I see that meetme application is setting up pseudo device
> /dev/zap/pseudo with a conference number for the first participant and
> then on open the deivce for read/write for later participants. But it is
> not clear how the RTP is mixed by this pseudo device.

There is no RTP mixing; these are Asterisk channels, not related to any
particular technology.

The incoming audio is converted to SLINEAR, then passed to Zaptel over
the pseudo channels, where it is then mixed and returned.