sip port set in daemon

src/freedombone

     echo 'EnvironmentFile=-/etc/sipwitch.conf' >> /etc/systemd/system/sipwitch.service
     echo 'EnvironmentFile=-/etc/default/sipwitch' >> /etc/systemd/system/sipwitch.service
     echo 'ExecStartPre=-/bin/rm -f /var/run/sipwitch/control' >> /etc/systemd/system/sipwitch.service
-    echo 'ExecStart=/usr/sbin/sipw -f $OPTIONS' >> /etc/systemd/system/sipwitch.service
+    echo "ExecStart=/usr/sbin/sipw -f \$OPTIONS -P$SIP_PORT" >> /etc/systemd/system/sipwitch.service
     echo 'Restart=always' >> /etc/systemd/system/sipwitch.service
     echo 'NotifyAccess=main' >> /etc/systemd/system/sipwitch.service
     echo '' >> /etc/systemd/system/sipwitch.service
     echo '</sipwitch>' >> /etc/sipwitch.conf
 
     sed -i 's|#PLUGINS=|PLUGINS=|g' /etc/default/sipwitch
-    sed -i 's|PLUGINS=.*|PLUGINS="zeroconf subscriber forward"|g' /etc/default/sipwitch
+	sed -i 's|PLUGINS=.*|PLUGINS="zeroconf subscriber forward"|g' /etc/default/sipwitch
     groupadd sipwitch
     usermod -aG sipwitch $MY_USERNAME