Data Sheet
GSC3505
1-Way Public Address SIP Speaker
About the GSC3505
The GSC3505 is a 1-way public address SIP speaker that allows oces, schools, hospitals,
apartments and more to build powerful public address announcement solutions that expands
security and communication. This robust SIP speaker oers crystal clear HD audio functionality
with a high-delity 8W HD speaker. The GSC3505 supports Bluetooth devices, a built-in whitelist
and blacklists to easily block unwanted calls, SIP and multicast paging, and integrated dual-band
Wi-Fi.
Product Positioning
By pairing the GSC3505 with other
Grandstream devices, including desktop
and cordless IP phones as well as the GDS
series of Facility Access products, users can
easily sculpt a state-of-the-art security and
PA announcement solution. Thanks to its
modern industrial design and rich features,
the GSC3505 is the ideal SIP speaker for any
setting.
Competitive Features
• Speaker with HD acoustic chamber
• Features SIP paging, multicast paging, call-
waiting with priority override
• Full-band and wide-band audio codec support
• Integrated dual-band 802.11 a/b/g/n Wi-Fi
• Integrated Bluetooth support
• One 10/100 Mbps network port with PoE/
PoE+
• Web-UI access for control and congurations
Full-band and
wide-band
audio codec
10/100Mbps port
with PoE/PoE+
Integrated
Bluetooth
Support
Speaker with HD
acoustic chamber
© 2019 Grandstream Networks. All rights reserved.
Network Interfaces One 10/100 Mbps port with integrated PoE/PoE+
Bluetooth Yes, Integrated. Bluetooth 4.0 + EDR
Wi-Fi Yes, Dual-band 2.4 & 5GHz with 802.11 a/b/g/n, WMM
HD Audio Yes, HD speaker with support for full-band audio
Security
User and administrator level passwords, MD5 and MD5-sess based
authentication
Temperature and
Humidity
Operation: 0°C to 40°C Storage: -10°C to 60°C,
Humidity: 10% to 90% Non-condensing
Voice Codecs
G.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.729A/B in-band and out-
of-band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC, ANS
GSC3505 Key Technical Specications