GSM Modules (2G/3G/4G) for SMS, Voice & Data Our GSM modules—including SIM800, SIM7600, A7672, and others—support 2G, 3G, and 4G connectivity, enabling voice, SMS, and data in IoT and telematics applications. These reliable, field-ready solutions are offered at affordable rates in India Know More: https://www.campuscomponent.com/categories/gsm_2g_3g_4g/2208614000002321089