Can EcoGSM-SIM work with any GSM handset?
A12: No. There are a large variety of handsets available worldwide and some handsets do not support EcoGSM-SIM’s application. Additionally, some approved handsets may have to be SIM unlocked in order to use a different GSM operators’ SIM. Often the best way to determine if the EcoGSM-SIM works is to insert the EcoGSM-SIM into the handset and see if you receive a call back or alternatively, contact your Sales Agent for advice.