LTE modem?

Shamim Shahriar shamim.shahriar at gmail.com
Tue May 5 06:12:59 UTC 2020


On 05/05/2020 04:53, Zaphod Beeblebrox wrote:
> Most of the cell modems (over the years) that I have seen show up as serial
> devices and emulate a basic AT command set.  In most cases, you need to
> know the dial string for your carrier --- it's often something goofball
> like "ATDT pppservice.mycarrier.com" ... and then, after connecting
> speaking ppp ... sometimes even without authentication.  The LTE modem I
> picked up for my most recent laptop (and goes in an internal slot) fits
> this bill.  IIRC, it shows up as a USB serial device.
>
> On Mon, May 4, 2020 at 9:24 PM Michael Sierchio <kudzu at tenebras.com> wrote:
>

Personally I prefer the ones that offer an Ethernet port; it ensures 
that whatever "interesting" activity needs to happen at the LTE end is 
confined to that box only -- easy to troubleshoot without disturbing the 
rest of the set-up. Another advantage is that most of these LTE modems 
allow me to connect an external antenna (a life saver when you have to 
have something in the middle of nowhere, and the tower is just on the 
other side of the ridge :D).

There are devices that allow you to attach a USB LTE dongle (as opposed 
to having a built-in SIM slot), please make sure you get the 
manufacturer recommended dongle in those cases -- as otherwise 
"incompatibility" will waste your time.

Just my 2p, hope this helps.

All the best.




More information about the freebsd-net mailing list