Ouff it is working now ... man that was pain! ;-) Here are some very usefull sites that helped: 1) Sony AT command line reference (very up to date) a really nice pdf !!! http://developer.sonyericsson.com/getDocument.do?docId=65054
2) Here was my problem I needed a "AT+CFUN=1" to turn the card on ;-/ http://www.thinkwiki.org/wiki/Ericsson_F3507g_Mobile_Broadband_Module I noticed if I turn off radio afterwards with "AT+CFUN=0" or "AT+CFUN=4", the gsm card is detached from the kernel: ubt0 detached ucom0 detached umodem0 detached ucom1 detached umodem1 detached umodem2 detached Does someone know if it is possible to re-attach / re-access it without rebooting ? (it is a build-in card, so it is impossible to re-insert it). 3) This page directed me to the Sony AT command line reference. It has some excellent info about the Ericsson MBM F3705g model: http://www.natisbad.org/E4300/Dell_Wireless_5530_AT_cmd_ref.html Here is the working option script: $ cat /etc/ppp/peers/ept debug cuaU0 460800 0.0.0.0:10.64.64.64 netmask 255.255.255.255 ipcp-accept-local ipcp-accept-remote crtscts persist #disable stuff deflate 0 refuse-pap refuse-chap noauth noipdefault nopcomp novj novjccomp connect '/usr/sbin/chat -v -f /etc/ppp/peers/chat/ept3.chat' Here is the working chat script: $ cat /etc/ppp/peers/chat/ept3.chat TIMEOUT 120 ABORT "BUSY" ABORT "ERROR" ABORT "NO CARRIER" ABORT "VOICE" ABORT "NO DIALTONE" #enable echo "" "ATE1" #switch modem on OK AT+CFUN=1 # APN OK AT+CGDCONT=1,"IP","web.pt.lu" # dial OK "ATD*99***1#" CONNECT \c Thank you all for helping! Didier
