Can Multi-SIM be used on all handsets models?
Yes, our Multi-SIM service can be used all handset models. However, handsets that do not support USSD code have to be configured before they can be selected as the Master Phone. To test if your handset supports USSD code, please key in 141 If the returned message indicates the following: You have selected this as your preferred SIM card to receive voice/SMS/MMS calls. It means that your handset supports USSD. If you do not receive any response within 1 minute, it means that your handset cannot support USSD. Please refer to question 8 for configuration details.