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Highlighted features:
GRANDSTREAM GSC3516 SIP/Multicast Talk-Back Speaker, Silver features
Warranty Period
Not specified
Other Features
Bluetooth and Wi-Fi support, advanced acoustic echo cancellation, built-in whitelists, blacklists, and greylists to block unwanted calls, cleanable exterior
Product details
GRANDSTREAM GSC3516 SIP/Multicast Talk-Back Speaker, Silver features
Warranty Period
Not specified
Other Features
Bluetooth and Wi-Fi support, advanced acoustic echo cancellation, built-in whitelists, blacklists, and greylists to block unwanted calls, cleanable exterior