Globetrotter 3g Modem Driver For Mac

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Document Revision 2009-10-28: RouterOS changes since V4.2

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  • 7Troubleshooting


This example shows how to get the Option Globetrotter HSDPA USB Modem working with LMT (Latvian Mobile Telephone UMTS/GPRS networks), or with Amigo (GPRS network) in Latvia. Service in your country might have different requirements and strings, but this is just to give you an outline of what is required.


USB Modem: Option N.V. Globetrotter HSDPA USB Modem H7.2

Modem manufacturer: Teltonika, model number U3G150

Router Hardware: MikroTik Router with USB port(s)(RB230, any x86 system, RB433UAH, or, RB411U)

Router Software

RouterOS V4.2. Works in previous versions 2.9 and 3, but slightly different configuration.

The USB Modem is recognized in RouterOS as an USB device and listed under the USB resources:

Make sure the USB port is listed under the port menu:

Prior RouterOS V3.23, a modem had all its ports listed. Since V3.23 there is one port per modem, and modem has channels used for commands and data. Channels have numbers 0,1,2, etc. Some modems may have just two channels, some have more. Set the baud rate to 9600 for communicating with the modem, in case it's not done already:

Check the modem responses using serial-terminal, like this:

Disconnect from the modem, by pressing 'Ctrl-A', and then 'Q':

Setting AT command as 'user-command' value can be useful for sending it from RouterOS scripts. Delay is required between RouterOS commands to send AT commands sequentially:

Workaround for Globetrotter devices offering no modem interface

There is no guarantee that the commands above work on all the modems that need the HSO driver. The tested device was a T-Mobile branded Globetrotter iCON 225 'web'n'walk Stick'. That device was able to connect without problems after the method described. Some Globetrotter HSDPA cards, for example the iCON 225 (branded as Orange, T-Mobile web'n'walk stick, etc. have the serial modem interface disabled by default, and only offer an NDIS network interface for the data connection. If a dial command is issued, but no CONNECT response happens from the modem, it might be helpful to check this. To check on the setting, issue:

In this example, the MDM (modem) interface is set to 2, so no serial modem interface is enabled in the device.

To change the setting, issue:

Globetrotter 3g modem driver for mac download

You should get: OK

To write the change permanently to the NVRAM of the device, issue:

Unplug and re-plug the device, and issue:

Number of channels should have increased. On the tested device, the last channel is the modem-interface (number 3 in RouterOS).

According to [1] the Linux HSO driver page at least five Option devices exist which do not have the modem interface enabled by default.

Router Configuration for PPP

Since RouterOS V4 (and latest versions 3) the PPP client configuration is made much easier compared to previous versions. There is no need to use ppp profiles, and ppp-client interface might have been added automatically to the /interface ppp-client list:

The interface has 3G/GPRS modem specific arguments, like apn, pin. Consult your network provider what to use for APN, user, and password. Adjust your peer-dns and default-route settings according to what you want to do over that interface! In our case, we want permanent connection and won't use dial on demand:


After enabling the interface watch the logs to see how the connection is being established over the USB modem:

The serial port is used by ppp client:


Check the addresses, in our case we have:

and routes:

You can get more status information about the modem and network by running the 'info' command. In our case the modem uses the same channel for data and info, thus, we disable the ppp-client and run the 'info' command then:

You may need to use masquerade to hide your private network when going out through the ppp!

Modem Preferred Operation Settings

OPTION modems can be set for preferred operation in UMTS(3G) or GPRS networks. To change the operation mode, use AT_OPSYS command via terminal, or, include it into the modem init string:

Query the current _OPSYS setting using the AT_OPSYS? command:

The _OPSYS operation mode setting stays intact after router reboot or power off/on. If you lock the modem operation setting to 3G only, the scan command won't show GPRS networks, and vice versa.

Globetrotter 3g Modem Driver For Mac Os


Note: RouterOS does not support memory slot like SD for USB modems. Use USB hub with USB modem and USB flash instead!'.

You do not get 'authenticated' and 'connected'
There is something wrong with your settings. Most likely, the ppp-client interface settings should be changed to match your provider's requirements.
If the command for list of available networks:
Multiple inits (multiline inits) are required
It is possible by dividing them using ; character. Example:
Modem is not recognized after reboot (port becomes invalit)
It is recomended to disable built-inf flash/cd drive. Here are some command for few modem brands:
  • ZTE modems: Read more>>



  • HUAWEI modems: Read more>>
Huawei E3131 modem do not work with PPP interface
The Huawei modem might be in the HiLink mode and in order to work with the PPP the switch is needed. Go to this page where you have instructions how to do that: [2]
Sms sending is not working
  1. check port
  2. check PIN
  3. enable debug logging GSM, DEBUG
  4. check log
  5. create supout
Sms receiving is not working
  1. check port
  2. check PIN
  3. got delivery accounting sms ?
  4. allowed-number is correct with country code prefix +XXX ?
  5. secret matches ?
  6. check sms store directly /sys serial usbX by issuing command at+cmgl=1 (lists all messages in message store)
  7. enable debug logging GSM, DEBUG
  8. check log
  9. create supout

Globetrotter 3g Modem Driver For Mac Download

PPP client is not working
  1. check port
  2. check PIN
  3. dial-on-demand is set to no?
  4. apn correct?
  5. needs special modem-init (to handle PIN use at+cpin=XXXX) ?
  6. enable debug logging with topics ASYNC, DEBUG
  7. check log
  8. create supout
PPP info is not working

Globetrotter 3g Modem Driver For Mac Windows 7

  1. check port
  2. uses same channel info-channel