DCNET DC2000-VE series GSM/LTE VoIP Gateway is a multi-functional gateway which helps to effectively implement calls between 2G/3G mobile network and VoIP network. With new designed pop-up SIM card slot, users are able to change SIM card easily without dismantling equipment. Moreover, with the opened API, the users could build their own application software to send SMS/USSD messages or bulk SMS messages, or push their text messages from email, HTTP etc. DC2000-VE It has great performance in software features also in new hardware structure design. The gateway provide low cost, easy and flexible IP telephony solution to enterprise, SMEs and business office etc.