Hello Jayarajan,your 0x0279, 0x950b seems to be a Billionton PCMCIA GPRS/GSM modem, which is not supported by any of the linmodems driver. Looking around the internet, I found the following page http://tuxmobil.org/pcmcia_cf_anycom_gprs.html, that deals with a CF card with the same ID. Some of these cards are in fact PCMCIA to USB to serial adaptors. For details, how to get this working, see:
http://www.xs4all.nl/~ernstagn/GPRS-HOWTO/ Regards, Joern