TG Call Back Solution
<div align="justify">When users need to make calls from international or interstate destination back to their home using a GSM mobile phone, Call Back solution is your go-to solution. Call Back service is intended for saving money when calling from abroad. It can call you back and connect your calls immediately after receiving your request. This can be simply done by enabling the feature and calling the number of the SIM card in the GSM gateway.</div> </br><b><font color="#00a0e3">Benefits</b></font> <ul> <li>Cut international and national GSM roaming charges and reduce company phone costs.</li> <li>Avoid GSM roaming charges charged by operators for calls made by visitors outside the network.</li> </ul> </br><a href="http://www.yeastar.com/download/Yeastar_TG_Applications_and_Solutions.pdf" target="_blank"><img src="http://www.yeastar.com/images/download_icon.png"></a>
VoIP GSM Gateway TG100
Yeastar TG100 is a fully featured 1 port VoIP GSM/CDMA/UMTS gateway that provides GSM/CDMA/UMTS network connectivity for softswitch and IP PBX.
VoIP GSM Gateway TG1600
Yeastar TG1600 is a VoIP GSM/CDMA gateway with 16 channels providing GSM/CDMA network connectivity for softswitches, and IP-PBXs.
VoIP GSM Gateway TG200
Yeastar TG200 is a VoIP GSM/CDMA/UMTS gateway with 2 channels providing GSM/CDMA/UMTS network connectivity for soft switches, and IP-PBXs.
VoIP GSM Gateway TG400
Yeastar TG400 is a compact 4 channels VoIP GSM/CDMA/UMTS gateway that connects GSM/CDMA/UMTS network with VoIP.
VoIP GSM Gateway TG800
Yeastar TG800 is a powerful VoIP GSM/CDMA/UMTS gateway with 8 channels, bridging between GSM/CDMA/UMTS network and IP-based systems.