AT Commands to transmit data through TCP/IP stack with LTE network
First of all, you may be advised, that as far as I am aware, the TCP socket support for TOBY-L2 is under development for most modules, except for the L201 version (see current datasheet and AT command reference at ublox.com), and for other versions using the most recent firmware update. I'm not linking to anything directly here, as ublox seems to be restructuring its website right now.

Other than that, the AT commands reference is quite the resource here, it details the differences in each command between TOBY, LEON, SARA and LISA as well as their versions. If you didn't read it, here is a (not necessarily complete or actually checked) list for migration, taken from exactly that document:


+UPSD: Parameter values depend quite a bit on the modem type. param_tag and param_val have many special meanings and restrictions for LEON. If you use any of those, be advised to take special measures. TOBY-L2 also has a restriction, however, that should be easily avoided
+UPSDA: no differences, but a side effect: If you activate a profile with the same number on TOBY-L2 twice, but with different settings, that may fail. Have a look at the manual if you do that.
+USOCR: You can only create 7 sockets (0-6) on TOBY-L2 as compared to up to 16 sockets on LEON.
+USOCO: No apparent differences
+USOWR: There is some weirdness with LEON in the details in case you're also receiving data, which you obviously don't, so you're fine here.


However, pay attention that you do not mix +CG* and +UPS* commands in your application, in case you're upgrading. That may lead to problems.

Other than that I can not discern any other differences in the documentation. Still, it may just not be documented at a stage this early.

There are two other references I can point you to.


As soon as you have an actual TOBY module with you, try the m-center. It allows you to set up PSD profiles and trace the AT commands at the same time.
Contact your distributor. u-blox has quite detailed agreements with them, in general, which makes them responsible for supporting you in questions like that.