Hello Harald,
On Tue, 13 Jul 2010 16:06:55 +0200, "Harald Welte" laforge@gnumonks.org wrote:
The Netzing NE110 (as well as other MTK phones) seem to have a bug in their MO-SMS code. Dieter has told me he is looking at a workaround to this (by sending dummy authentication request/response), and he will e-mail this list once he has some results.
This was a tough one. I tried Authentication and Ciphering commands in various combinations without any success. Finally I changed the allocated channel to SDCCH instead of TCH. And voila, it worked, even without Authentication and/or Ciphering.
So it seems that there is a problem with MTK phones (and maybe others) and MO-SMS on a TCH channel. I am not sure yet if there is a workaround to solve this and still use the TCH.
Best regards, Dieter