Firmware 1.0.3.3 for GSC3510/GSC3505 released as Beta
[GSC3505/3510 SIP Intercom Speaker / Microphone]
(2)
Firmware 1.0.1.19 for GSC3510/GSC3505 released as official
[GSC3505/3510 SIP Intercom Speaker / Microphone]
(1)