The Portech MV-374 is a 4 channels VoIP GSM/CDMA/UMTS Gateway and is supported by 3CX.
http://www.portech.com.tw/p3-product1_1.asp?Pid=19
http://www.3cx.com/blog/voip-howto/portech-mv-374-gsm-gateway/
Try Dinstar (http://dinstar.com) -- easy to configure (3CX configuration guide available), working fine and price effective.
I have lots of Dinstars installed, so generally disagree with Mixig (above).
Hi Guys.
I am new to the 3cx system. What gsm gateways can i use for the 3cx system for inbound and outbound calls. i was looking at the beronet berofix but it has only 2 gsm SIMs. Can u plz guide me in getting one that accomodates 4gsm SIMs and can be easily configured with the 3cx system.