GSM MODEM

Hi,
i have the specification for my Application could anyone suggest me a GSM Module that satisfice my requirement… I am looking for a low cost module for the requirement.
My Requirements:
Capability to send & receive and read an SMS form defined locations,
SIM card interface,
Should support AT Commands,
Low cost…
I am going to interface this module with Microcontroller.
Can i know the product information…Please…

Answers already here: wavecom.com/modules/movie/sc … php?p=6550