The Yeastar TG1600 VoIP GSM Gateway offers 16 GSM channels for seamless connectivity with IP PBX systems. Supporting GSM, WCDMA, and 4G LTE frequencies, it enables cost-effective communication via SIP or IAX2. Ideal for businesses needing backup for landlines or mobile-to-mobile calls, it features a user-friendly web interface, SMS capabilities, call routing, and Least Cost Routing (LCR). With excellent voice quality and easy setup, the TG1600 is a versatile communication tool