Service on the GSM Network. If your Straight Talk Service is on the GSM network, your Straight Talk Wireless phone may roam when you are outside of the Straight Talk GSM network coverage area.
When your Straight Talk GSM phone is roaming, Voice and SMS messaging will continue to be available to you at no additional charge. Mobile Web Services access will not be available while you are roaming outside of the Straight Talk GSM Network coverage area. When your GSM Straight Talk Phone is roaming, an indicator light on your handset may display the word "Roam" or "RM" on the screen while the phone is not in use.