I have a Siemens M20 GSM modem i want to use to send sms with.
But it does not work on RouterOS?
I’ve testet it on my computer, and it works fine… but when i fireup RouterOS no go!
Even on the same machine it still does not work!
Any clues? or is this just a thing for support? 
And here is some logs:
Serial on computer - 9600/8/n/1/n:
AT
OK
AT+CMGW="xxxxxxxx"
> test
+CMGW: 1
OK
AT+CMSS=1
+CMSS: 11
(And i get a SMS)
Serial on Soekris, Routerboard and PC running RouterOS (3.23) - 9600/8/n/1/n:
gsm,write,debug \1B\r
gsm,write,debug
gsm,write,debug AT\r
gsm,write,debug
gsm,read,debug \1B