modem signal issue

RouterOS General
1

Hello ,
I’m working with version 6.43.4
and I wnat to represent the mdoem signal with leds 1-5
this is what I have done:

/system leds
set 0 interface=ppp-out1 leds=led1 modem-signal-treshold=-95 type=modem-signal
add interface=ppp-out1 leds=led2 modem-signal-treshold=-85 type=modem-signal
add interface=ppp-out1 leds=led3 modem-signal-treshold=-75 type=modem-signal
add interface=ppp-out1 leds=led4 modem-signal-treshold=-65 type=modem-signal
add interface=ppp-out1 leds=led5 modem-signal-treshold=-55 type=modem-signal

I can see it’s working because I get the 5 leds ,
and when I start to unplug the antena the leds go down until 1\0

I have 2 problems:

  1. if the ppp-out is disable - the LEDs are still working , which I can work with this.
  2. if I remove the SIM - and reboot the router - I get 5 leds on - why?

Thanks ,

2

Generally mobile devices tend to “hang” on some MNO cell even if they don’t have SIM card in it. I didn’t write “connect” as they don’t. The reason for “hanging” on some cell is emergency calls (911 or 112) which should be possible even without SIM cards.

Don’t ask me how a data modem inside a router might make emergency calls … broadband chips don’t care about package they’re in.