SPA2 is a SIP video intercom & Paging device for industry application. The media stream transmission adopts standard
IP/RTP/RTSP protocol. It inherits the advantages of the stability and the sound quality of VOPTech VOIP Phone. It is perfectly
compatible with all the current SIP IPPBX /IMS platforms, such as Asterisk, Broadsoft, 3CX, Elastix, etc. It has various functions
and interfaces, Such as Intercom, broadcast, video , security, recording, to adapt different application environment.
VOPtech DP28 SIP video Intercom, carring VOPTech's 6+ years industrial experience in technology and product design, Combing IP technology together with industrial intercom perfectly. DP28 SIP intercom can be easily configured in varies application scenarios like bank, schools, mining, cities, etc.
The design of SD20 Sip Door phone are based on experience and knowledge of VOPTech IP phone development.SD20 are using standard IP/RTP/RTSP protocol for voice transmission and enjoy the advantages of full range of compatibility.