Template:Networking rut9xx manual mobile traffic cli examples

Get data usage value* of SIM1 for the current day:
```
root@Teltonika:~# mdcollectdctl -cdayrx1 
26558
```
Get data usage value* of SIM2 for the current month:
```
root@Teltonika:~# mdcollectdctl -pmonthrx2
77701
```