Hi All, I'm developing an application to run in an ARM platform using embedded linux. I've cross-compiled it using pjsip 0.8.0 and arm-linux-gcc. I've downloaded the demo file (pjproject-0.8.0_arm/pjproject-0.8.0/pjsip-apps/bin/samples/siprtp-arm-linux-gnu ) to the target board using the option for 8 SIP calling: siprtp-arm-linux-gnu -c 8 The busybox TOP command has shown there were 12 threads and one of them was consuming 86% of CPU processing power (8 simultaneous call without audio, just SIP signalling). Is this high CPU consumption normal? Is there a way to decrease it? How can I optimize my app? Is this 12 threads quantity normal for 8 SIP calling? Thanks in advance Cesar