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  4. Grandstream GSC3506 V2 SIP/Multicast Paging Speaker, 30W HD Coaxial Speaker, PoE++
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Grandstream GSC3506 V2 SIP/Multicast Paging Speaker, 30W HD Coaxial Speaker, PoE++

Part number GSC3506 V2
  • 30W high-fidelity speaker with HD acoustic chamber
  • Supports SIP paging, multicast paging, group paging, push-to-talk (PTT) and call-waiting with priority override
  • Supports full-band and wide-band audio codecs, including Opus and G.722
  • 1x 3-pin differential line out port
  • Ports include 1x 2-pin switch-in input, 1x alarm-in input, 1x DC24V, 1x network and 1x USB port; keys include volume up/down and reset
  • One 10/100Mbps network port with PoE/PoE+/PoE++
  • Built-in blocklists and allowlists to easily block unwanted calls
SIP PoE HD Voice SIP Speaker Paging Grandstream
Price
⃁ 570.94 ⃁ 570.94 ⃁ 743.39 Save 23%
⃁ 570.94 ⃁ 743.39
(Tax excluded)
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  • Delivery within 4–10 business days across Saudi Arabia
  • Warranty according to the manufacturer
  • Tax invoice with every order
  • Technical support before and after purchase

Not sure this model fits your setup? Read the buying guide

Official datasheetGrandstream_GSC3506_V2_Datasheet.pdf Download

Overview of Grandstream GSC3506 V2

The Grandstream GSC3506 V2 is a multicast paging speaker that provides a powerful paging and public address solution to expand security and communication throughout offices, schools, hospitals, apartments and more. This high-performance SIP speaker delivers crystal clear HD audio through a 30-watt high-fidelity coaxial speaker. It supports SIP and multicast paging, group paging, push-to-talk (PTT) and call-waiting with priority override, plus built-in blocklists and allowlists. With PoE/PoE+/PoE++ or 24VDC power, a differential line-out, alarm and switch inputs and centralized provisioning through GDMS, it suits announcements in offices, schools, hospitals, hotels, malls and warehouses.

Technical Specifications – Grandstream GSC3506 V2

Software

Protocols/StandardsSIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6, OpenVPN
Voice Codecs and CapabilitiesG.711µ/a, G.722 (wide-band), G.726-32, iLBC, Opus, G.723, G.729A/B, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, PLC, AJB, AGC, ANS
Telephony FeaturesSIP paging, Multicast paging, Group paging, Push-to-talk (PTT), Call-waiting with priority override
QoSLayer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
SecurityUser and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, secure boot
Multi-languageEnglish, German, French, Spanish, Portuguese, Russian, and Chinese
Upgrade/ProvisioningFirmware upgrade via TFTP / HTTP / HTTPS or local HTTP upload, mass provisioning using GDMS/TR069 or AES encrypted XML configuration file

Hardware

Network Interfaces1x 10/100 Mbps port with integrated PoE/PoE+/PoE++
Auxiliary Ports1x 2-pin switch-in input port, 1x 2-pin alarm-in input port, 1x differential line out port, 1x network port, 1x DC24V port, volume up and down key (+/-), reset
USB PortUSB 2.0, supports external USB storage devices
HD AudioHD speaker with support for full-band audio
Speaker30W high-fidelity HD speaker (coaxial); Frequency: 110Hz-20000 Hz; Sensitivity: Up to 95 dBA at 1W power at 1 meter
Maximum Sound Pressure Level (SPL)99dB
Memory256MB RAM
Power & Green Energy Efficiency2-pin DC input: 24VDC / 2.5A; Integrated PoE 802.3af Class 3, PoE+ 802.3at Class 4, PoE++ 802.3bt Class 6

General

Temperature and HumidityOperation: 0°C to 45°C; Storage: -10°C to 60°C; Humidity: 10% to 90% Non-condensing
Package ContentGSC3506 V2, mounting hole cut-out template, ceiling mount kit (optional), quick installation guide
Dimensions257.5mm (diameter) x 118mm (depth)
WeightUnit Weight: 2.14kg; Box Weight: 2.76kg
ComplianceFCC: FCC 47 CFR Part 15 Subpart B; IC: ICES-003; CE: EN 55032, EN 55035, EN IEC 61000-3-2, EN 61000-3-3, EN IEC 62368-1; UKCA: BS EN 55032, BS EN 55035, BS EN IEC 61000-3-2, BS EN 61000-3-3, BS EN IEC 62368-1; RCM: AS/NZS CISPR 32, AS/NZS 62368.1

Source: Grandstream official website and datasheet. Specifications are subject to change by the manufacturer.

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PRACTICAL ANSWERS

Network planning questions

Should I choose a router, a switch or an access point?

Start with the task: connecting networks, adding wired device ports, or providing wireless coverage. A single installation may need more than one device type. Share a site diagram and device list so the proposed roles and connections are clear.

Why is wireless coverage weak in some rooms?

Check the access point location, building layout, obstacles and the number of active devices. Measure coverage where people actually work before choosing extra equipment; changing the internet package alone may not address a coverage problem.

How do I select a switch for powered network devices?

List the devices to be connected and check each device’s power requirements against the switch’s per-port capability and total documented power budget. Also review uplink capacity and reserve ports for the expansion you actually expect.

Can the guest network be separated from business devices?

Define which devices and services guests should be able to reach, then check whether the router, switch and access points support the required separation. Test the resulting access rules; a different wireless network name alone is not the acceptance test.

What information helps plan a network upgrade?

Provide floor plans, current equipment models, internet connections, cabling details and peak device counts. Describe the applications that matter most and the observed problem, such as disconnections or slow local file access.

How should network performance be checked after installation?

Agree on the locations and representative workloads to test, then record wired and wireless results separately. Check connectivity, coverage and access rules during normal use, and retain a diagram and configuration backup for support.

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