How to configure the onboard SIM card 3G (RB411U) ?

Although some improvement, I still have problems with this one.

After resetting to defaults, the card appears like this:

[admin@MikroTik] /port> pr
Flags: I - inactive 
 #   NAME                      CHANNELS   USED-BY                     BAUD-RATE
 0   serial0                   1          Serial Console              auto     
 1   usb2                      3                                      9600     
[admin@MikroTik] /port>

I try to open serial-terminal:

[admin@MikroTik] /port> /system serial-terminal usb2 channel=3
failure: specified port speed is not supported on this port

but it reports wrong baudrate.
I set the baudrate to 115200:

[admin@MikroTik] /port> set 1 baud-rate=115200
[admin@MikroTik] /port> /system serial-terminal usb2 channel=3
[Ctrl-A is the prefix key]

and finally I am able to talk to it:

[Ctrl-A is the prefix key]


ati
Manufacturer: Option N.V.
Model: GTM380
Revision: 2.8.0Hd (Date: Oct 11 2007, Time: 10:20:29)

OK

The pre-configured PPP client looks like this:

[admin@MikroTik] /interface ppp-client> pr
Flags: X - disabled, R - running 
 0 X  name="ppp-out1" max-mtu=1500 max-mru=1500 mrru=disabled port=usb2 
      data-channel=2 info-channel=2 apn="internet" pin="" user="" password="" 
      profile=default phone="" dial-command="ATDT" modem-init="" 
      null-modem=no dial-on-demand=yes add-default-route=yes use-peer-dns=yes 
      allow=pap,chap,mschap1,mschap2

I enable the PPP client, and according to the MT Wiki I change info and data channel to 3, and I also insert the same init string and dial string I have used on the Huawei E220 against this operator (norwegian Telenor) before:

[admin@MikroTik] /interface ppp-client> pr
Flags: X - disabled, R - running 
 0  R name="ppp-out1" max-mtu=1500 max-mru=1500 mrru=disabled port=usb2 
      data-channel=3 info-channel=3 apn="internet" pin="" user="" password="" 
      profile=default phone="" dial-command="ATDT*99***1#" 
      modem-init="AT+CGDCONT=1,"IP","internet"" null-modem=no 
      dial-on-demand=yes add-default-route=yes use-peer-dns=yes 
      allow=pap,chap,mschap1,mschap2

This brings the connection up while “dial-on-demand=yes”:

[admin@MikroTik] /interface ppp-client> info 0
failure: can't reuse channel while ppp-client running!
[admin@MikroTik] /interface ppp-client> disable 0
[admin@MikroTik] /interface ppp-client> info 0   
            status: "ready"
        pin-status: "READY"
     functionality: "minimum"
         gprs-mode: "A - HSDPA"
      manufacturer: "Option N.V."
             model: "GTM380"
          revision: "2.8.0Hd (Date: Oct 11 2007, Time: 10:20:29)"
     serial-number: "357564010361222,PE297AG0JY"
  current-operator: "N Telenor - TELENOR"
    signal-strengh: -79

The PPP client gets IP address and routes are established:

[admin@MikroTik] > /ip address pr
Flags: X - disabled, I - invalid, D - dynamic 
 #   ADDRESS            NETWORK         BROADCAST       INTERFACE              
 0 D 10.64.64.77/32     10.112.112.125  0.0.0.0         ppp-out1               
[admin@MikroTik] > /ip route pr  
Flags: X - disabled, A - active, D - dynamic, 
C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme, 
B - blackhole, U - unreachable, P - prohibit 
 #      DST-ADDRESS        PREF-SRC        G GATEWAY              DISTANCE IN..
 0 ADS  0.0.0.0/0                          r 10.112.112.125       1        pp..
 1 ADC  10.112.112.125/32  10.64.64.77                            0        pp..
[admin@MikroTik] >

However, No DNS address is configured, and I am not able to ping neither gateway nor any public IP addresses.

If I uncheck “dial-on-demand” (Like I always do for 3G USB adapters) the address and routes disappear. Why?

Re-checking “dial-on-demand” brings address and routes back, and the PPP client status is “Waiting for packet”. As soon as I try to ping something the status changes to “dialing..” but it never reaches the “established” or “connected” state. Is this due to wrong init or dialing strings?

In between the card appears to “hang”, but disabling/enabling it brings it back where it was.
However, after a while it does not respond to the “info” command:

[admin@MikroTik] /interface ppp-client> disable 0
[admin@MikroTik] /interface ppp-client> info 0   
failure: modem did not respond

So a few questions still are unanswered regarding this card.

My belief was that address, gateway and routes are assigned only when a connection is established, so why are they present already in the “waiting for packet” state?

MT guys, what does your config (of course aimed at your 3G operator) look like for the GTM-380?

Anybody else that have had success with RB411U and this card?