I am developing an intercom system on a raspberry Pi using PjSip. I can successfully mix 30 incoming RTP streams in the conference bridge. All the streams are 8Khz sampling rate, 16 bits/sample, alaw encoding. What is realistically the maximum number of incoming RTP streams that can be supported on such an embedded platform without GUI or any other processor intensive applications running ? Is it 50, 100, 200, 500 or what? The Rapsberry Pi has a quad core 1.4GHz Cortex-A53 processor. /Rolf