Hello, I recently got AOP 531 with 3G support (Option GTM382e) and it works fine also on 900 MHz 3G which is available here. I also have managed to make and receive voice calls (including CLIP SS), using hyperterminal and AT-commands, but unfortunately the voice pcm payload is somewhat a problem, that is I do not know if/how to access it. To my understanding the GTM382e acts as a master and generates clock signals for the pcm-interface, and in order to get it working it seems that a slic-slac circuit is needed, or maybe it would be possible to access the pcm data pins of th GTM382e somehow on the host machine software?? Does anyone have any ideas how this could be done, I need this information for a special demo system that essentially needs to have the possibility to access also the voice pcm data. Operating systems are XPpro and Ubuntu 9.04 Thanks in advance, aop531user
