example systemd file for rtpengine

rtpengine.service

# more /etc/systemd/system/rtpengine.service 

[Unit]
Description=rtpengine
After=syslog.target network.target local-fs.target

[Service]
; service
Type=forking
ExecStart=/usr/local/bin/rtpengine \
--interface 10.132.0.24!35.195.208.181 \
--listen-ng=22222 \
--listen-udp=12222 \
--listen-cli=127.0.0.1:9900 \
--pidfile /var/run/rtpengine.pid \
--port-min 40000 \
--port-max 60000 \
--recording-dir /tmp \
--recording-method pcap \
--recording-format eth \
--delete-delay 1 \
--homer=10.132.0.14:9060 \
--homer-protocol=udp \
--homer-id=120 \
--log-level 6
PIDFile=/var/run/rtpengine.pid
TimeoutSec=15s
Restart=always
; exec
User=root
Group=daemon
LimitCORE=infinity
LimitNOFILE=100000
LimitNPROC=60000
;LimitSTACK=240
LimitRTPRIO=infinity
LimitRTTIME=7000000
IOSchedulingClass=realtime
IOSchedulingPriority=2
CPUSchedulingPolicy=rr
CPUSchedulingPriority=89
UMask=0007

[Install]
WantedBy=multi-user.target