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Grandstream GSC3505 SIP Intercom Speaker Africa

Grandstream GSC3505 SIP Paging Speaker for Business Sites

The Grandstream GSC3505 is a one-way public address SIP speaker built for clear announcements, scheduled paging, emergency notifications and day-to-day operational communication. Its 8W high-fidelity HD speaker, SIP and multicast paging support, dual-band Wi-Fi, Bluetooth and PoE/PoE+ connectivity make it suitable for offices, schools, clinics, warehouses, apartment buildings, retail locations and multi-room business facilities. Buyers should choose this model when they need centrally managed voice distribution without a talk-back microphone at the speaker endpoint. It can connect to compatible SIP platforms and Grandstream communication environments, helping teams send messages from IP phones, paging groups or approved applications. FourTeck supports African businesses with model selection, compatibility review, quantity planning, deployment guidance, delivery coordination and warranty information. Availability can depend on supplier status, order volume and project requirements, so buyers are encouraged to share the number of zones, preferred network connection, PoE capability, mounting location and existing PBX details. Contact FourTeck to request a quotation, confirm current options and review whether the GSC3505 or a related Grandstream paging model is the right fit for your site.

SKU: GRANDSTREAM-GSC3505-AFRICA Categories: , Brand:
Business Paging and Public Address

Grandstream GSC3505 SIP Intercom Speaker in Africa

The Grandstream GSC3505 is a one-way SIP public address speaker designed for organisations that need dependable voice announcements across offices, schools, healthcare facilities, warehouses, apartment buildings, retail locations and shared business spaces. It combines an 8W high-fidelity HD speaker with SIP paging, multicast paging, dual-band Wi-Fi, Bluetooth and network power support, allowing technical teams to build a practical announcement system around existing IP communications infrastructure. FourTeck helps buyers review the correct model, network design, quantity, mounting plan, power method and delivery requirement before an order is prepared.

✓ Configuration Guidance✓ Africa Delivery Coordination✓ Project Quantity Support✓ Warranty Guidance

Request QuoteCheck Africa Availability

Quick buying note: Availability, lead time and supply route may vary. Share the number of paging zones, site type, PBX platform, PoE capability and delivery country for a more accurate quotation.

Quick Product Information

Brand
Grandstream
Model
GSC3505
Product Type
One-way public address SIP speaker
Speaker Output
8W high-fidelity HD speaker
Connectivity
10/100 Ethernet, dual-band Wi-Fi and Bluetooth
Power
PoE 802.3af Class 3 or PoE+ 802.3at Class 4
Main Use
SIP paging, multicast announcements and priority notifications
Availability
Contact FourTeck for current options
Delivery Area
Africa and supported regional markets
Configuration Note
Confirm SIP platform, VLAN, PoE and paging-zone requirements

Product Overview

The GSC3505 gives businesses a network-based alternative to traditional analogue announcement speakers. Instead of running a separate audio amplifier system to every room, the device can register with a compatible SIP platform and receive pages through the same structured network used for business communications. This approach can simplify zone planning, user permissions and message delivery, particularly in sites where IP phones, a Grandstream UCM platform or another standards-based SIP environment is already present.

Its role is straightforward but important: it broadcasts audio to a defined area. Because it is a one-way speaker, people at the endpoint hear the announcement but do not speak back through the device. That makes it well suited to routine paging, shift notifications, visitor calls, scheduled reminders, safety messages and operational announcements. Buyers who need two-way conversation should compare it with a talk-back model rather than assuming every intercom speaker offers a microphone.

The unit includes an HD acoustic chamber and an 8W high-fidelity speaker. It supports full-band and wide-band voice technologies, including Opus and G.722, so organisations can achieve clearer speech when the calling platform, network and source endpoint also support suitable codecs. Clearer voice reproduction matters in busy workspaces because employees must understand a message quickly without repeatedly calling a reception desk or supervisor.

Deployment options include wired Ethernet with PoE or PoE+, dual-band 2.4GHz and 5GHz Wi-Fi, and integrated Bluetooth 4.0 + EDR. Wired PoE is often preferred for fixed business installations because one cable can carry network access and power, while Wi-Fi can be useful where suitable cabling is not available. The final choice should account for network coverage, electrical conditions, local security policy, installation access and the importance of uninterrupted paging.

For African buyers, the practical value lies in combining a compact speaker endpoint with flexible IP deployment. FourTeck can help procurement teams and system integrators review the proposed coverage area, ceiling or wall placement, network switch capability, VLAN design, SIP registration, expected audio zones and quantity. This review reduces the risk of ordering a correct model in the wrong quantity or discovering later that additional PoE capacity, mounting preparation or PBX configuration is required.

Key Business Benefits

A paging speaker should improve daily communication without creating a difficult support burden. The following benefits explain how the device can help when it is selected and deployed around a suitable SIP and network design.

â—† Faster Site-Wide Communication

Managers, reception teams and authorised users can distribute important voice announcements without walking through multiple rooms or calling employees individually. A well-designed paging group can shorten the time required to communicate shift changes, visitor arrivals, operational instructions and urgent notices.

â—† Clearer Spoken Messages

The HD acoustic chamber and broad codec support are intended to improve speech quality. Better clarity can reduce misunderstood instructions, repeated pages and confusion, especially when the source phone and PBX are configured for compatible wide-band audio.

â—† Flexible Network Deployment

Ethernet, PoE, PoE+, dual-band Wi-Fi and Bluetooth give technical teams several ways to integrate the speaker. This flexibility helps when buildings have different cabling conditions, provided the selected method meets security, coverage and reliability requirements.

â—† Easier Zone Planning

SIP and multicast paging can support logical groups for departments, floors or operational areas. Administrators can design messages for selected spaces instead of broadcasting every notice to the entire site, subject to the capabilities and configuration of the surrounding platform.

â—† Priority for Important Calls

Call waiting with priority override helps the system handle more important pages ahead of lower-priority audio. When policies are configured properly, this can support emergency alerts and time-sensitive operational messages that should not wait behind routine announcements.

â—† Controlled Administration

Support for encrypted configuration files, TLS, SRTP, HTTPS, 802.1X and administrative credentials provides tools for a more controlled deployment. These features still require correct implementation, strong passwords, current firmware and appropriate network policy.

The business value is strongest when the speaker is treated as part of an overall communication solution rather than a stand-alone audio device. Coverage modelling, source endpoint quality, network latency, switch power budget, VLAN rules and user permissions all influence the final result. FourTeck can help buyers collect these requirements before the quotation stage so hardware, accessories and support expectations are aligned.

Product Highlights

8W HD speaker

Designed for spoken announcements in indoor business areas where intelligibility and a compact form factor are important.

SIP and multicast paging

Supports standards-based calling and group announcement methods for compatible communications environments.

Dual-band wireless

Integrated 2.4GHz and 5GHz 802.11 a/b/g/n Wi-Fi can provide an alternative where network cabling is difficult.

PoE and PoE+

A single compatible Ethernet cable can supply network access and power, reducing the need for a nearby power outlet.

Broad codec support

G.711, G.722, G.726-32, iLBC, Opus and G.729A/B support provides flexibility across compatible voice systems.

Provisioning options

Firmware and configuration management can be handled through supported web, file transfer and mass-provisioning methods.

These highlights should be matched to the environment. An 8W indoor speaker may be appropriate for a classroom, meeting area or office zone, while a noisy warehouse, large open yard or outdoor facility could require a more powerful or weather-rated model. Wi-Fi is convenient, but wired PoE often provides more predictable uptime for critical paging. Buyers should also confirm whether a one-way design is sufficient or whether talk-back microphones, call buttons or access-control integration are needed.

Technical Specifications

SpecificationDetails
Brand / ModelGrandstream GSC3505
Product TypeOne-way public address SIP speaker
Speaker8W high-fidelity HD speaker with HD acoustic chamber and full-band audio support
Paging FunctionsSIP paging, multicast paging and call waiting with priority override
Voice CodecsG.711 µ-law/A-law, G.722, G.726-32, iLBC, Opus and G.729A/B; in-band and out-of-band DTMF; VAD, CNG, AEC, PLC, AJB, AGC and ANS
Network PortOne 10/100 Mbps Ethernet port with integrated PoE/PoE+
Wi-FiDual-band 2.4GHz and 5GHz, 802.11 a/b/g/n with WMM
BluetoothIntegrated Bluetooth 4.0 + EDR
Supported ProtocolsSIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, PPPoE, SSH, TFTP, NTP, STUN, LLDP-MED, TR-069, 802.1X, TLS, SRTP, IPv6 and OpenVPN
Quality of ServiceLayer 2 QoS using 802.1Q and 802.1p; Layer 3 QoS using ToS, DiffServ and MPLS
SecurityUser and administrator passwords, MD5/MD5-sess authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS and 802.1X
ProvisioningFirmware upgrade through TFTP, HTTP, HTTPS or local HTTP upload; mass provisioning using AES-encrypted XML configuration
PowerIntegrated PoE 802.3af Class 3 and PoE+ 802.3at Class 4
Operating Conditions0°C to 40°C operation; -10°C to 60°C storage; 10% to 90% non-condensing humidity
Dimensions / Weight215.32mm diameter × 68.7mm depth; unit weight 0.8kg; boxed weight 1.39kg
Package ContentGSC3505 speaker, mounting kit, quick installation guide and GPL licence information
Warranty / AvailabilityWarranty route and availability depend on the selected supply channel, destination and order terms. Confirm with FourTeck before purchase.

Specification matching should start with the environment, not only the model number. The 8W output is designed for indoor announcements, but the actual listening result depends on ceiling height, room shape, background noise, wall materials and the number of speakers. A site with separated rooms may require several devices even if a single unit seems loud enough in an open test. Buyers should also confirm that the chosen switch can provide the required PoE standard and has enough power budget for every connected endpoint.

SIP compatibility should be verified with the PBX or hosted platform that will register the device. Multicast paging can reduce call setup overhead for grouped announcements, but network switches, VLAN boundaries and routing policies must be prepared to handle multicast correctly. Where Wi-Fi is proposed, conduct a coverage assessment at the actual mounting point and confirm that the security method is supported. Wired Ethernet remains the preferred option for many critical notification deployments because it offers consistent connectivity and simpler power management.

Configuration and Buyer Guidance

Before ordering, define the communication problem the speaker must solve. Is the site trying to call staff to reception, notify a warehouse team, announce class changes, deliver safety instructions or distribute routine messages between departments? The answer determines the number of zones, who can make pages, how priorities are assigned and whether one-way audio is acceptable. A school may need separate classroom and common-area groups, while a clinic may need quieter departmental zones with strict permission control.

1. Define the Coverage Area

List every room, corridor, floor or open area that should receive messages. Include ceiling height, background noise and wall separation.

2. Confirm the Calling Platform

Provide the PBX brand, hosted SIP service or Grandstream platform details so registration and feature compatibility can be reviewed.

3. Review Network Readiness

Check available Ethernet points, Wi-Fi coverage, VLAN design, multicast behaviour, QoS policy and internet or WAN dependency.

4. Calculate PoE Capacity

Confirm that the switch supports 802.3af or 802.3at and has enough remaining power budget for the full speaker quantity.

5. Plan Mounting and Access

Identify safe mounting points, cable routes, maintenance access and protection from heat, moisture, dust or accidental impact.

6. Decide on Support Scope

Clarify whether supply only, remote configuration, on-site installation coordination, testing or administrator training is required.

A useful quotation request includes the site type, country, required quantity, expected zones, existing PBX, network switch model, preferred wired or wireless connection and installation deadline. For larger projects, add drawings or a room schedule. FourTeck can use this information to help identify missing accessories and determine whether the GSC3505, a higher-output speaker or a two-way model is more appropriate.

Ideal Business Use Cases

Office Announcements

Reception teams can page employees, announce visitors, share meeting reminders and communicate operational updates across selected departments. Separate groups can prevent unrelated teams from hearing every message.

Schools and Training Centres

Administrators can distribute timetable changes, assembly calls, class transitions and safety notices. The final design should consider classroom acoustics, corridor coverage and permissions for emergency messages.

Healthcare Facilities

Clinics and hospitals can use controlled pages for staff calls, departmental coordination and operational notices. Designers should avoid excessive volume in patient areas and follow local privacy and emergency communication procedures.

Warehouses and Light Industry

Supervisors can issue shift instructions, loading notices and urgent alerts. Noisy production zones may require additional units or a higher-output speaker, so acoustic testing is recommended before final quantity selection.

Apartment and Shared Buildings

Facility teams can place speakers in lobbies, common corridors or management areas for approved announcements. Residents should not be disturbed by unnecessary messages, making proper zoning and volume control important.

Retail and Hospitality Operations

Stores, hotels and service sites can coordinate staff, call departments and announce operational information. Background music requirements should be reviewed separately because a paging deployment may have different audio and licensing needs.

The device is most suitable where voice must travel from an authorised caller to one or more listening zones. It is not a substitute for a certified fire alarm or life-safety evacuation system unless the complete solution has been designed and approved for that purpose under applicable regulations. Organisations should treat emergency notification as a formal project involving resilient power, network continuity, backup procedures, audibility testing and documented responsibility.

Grandstream GSC3505 HD Audio and Announcement Clarity

The purpose of a paging system is not simply to produce sound; it must deliver understandable speech. The GSC3505 uses an 8W high-fidelity speaker and HD acoustic chamber, with support for full-band and wide-band audio. When the source phone, SIP platform and network preserve a suitable codec such as Opus or G.722, the message can carry more vocal detail than a narrow-band call. This is helpful for names, numbers and instructions that need to be understood on the first attempt.

Room acoustics remain equally important. Hard floors and glass surfaces can create echo, while shelves, machinery and partitions can block or scatter sound. One speaker placed centrally may work in a modest office, but several lower-volume speakers can produce better coverage than one device operated at maximum output. A distributed design also helps avoid uncomfortable volume near the speaker while distant listeners still struggle to hear.

Source quality should be controlled. A user speaking too far from a desk phone microphone, calling over a poor mobile connection or using an unsuitable codec can reduce clarity before the audio reaches the speaker. Administrators should test standard calling positions, set paging instructions for staff and use consistent endpoint settings. Pre-recorded messages can help for routine alerts, but the supporting platform must be able to store or play them as required.

For projects with noisy areas, FourTeck can help buyers consider speaker quantity, placement and alternative models. The GSC3505 is an indoor 8W unit, so a loading bay, factory floor or outdoor campus may need a more powerful speaker or a product designed for environmental exposure. Correct selection protects the buyer from installing a technically compatible device that cannot deliver the required audibility.

Grandstream GSC3505 SIP Paging, Multicast and Priority Control

SIP paging allows the speaker to participate in an IP communications environment using recognised calling methods. An authorised user can dial a defined extension or paging code, and the platform routes the audio to the speaker or a group of speakers. This is useful for direct department pages, reception announcements and scheduled operational messages. The exact behaviour depends on the PBX, extension permissions and endpoint configuration.

Multicast paging is valuable when the same message must reach many endpoints. Instead of creating a separate unicast call stream for every speaker, the network can distribute a multicast stream that subscribed devices receive. This can reduce traffic and simplify large groups, but it requires switches and routers that handle multicast correctly. IGMP snooping, VLAN boundaries, routing rules and quality-of-service policy should be reviewed by the network administrator before deployment.

Call waiting with priority override helps determine which audio should take precedence. A routine page should not prevent a more important alert from being heard. Administrators can design priority levels around emergency notices, management instructions and general announcements. However, priority should be documented and tested because an incorrect rule can allow a low-value message to interrupt critical communication or prevent an urgent page from reaching its audience.

Security matters because a paging endpoint can broadcast to many people. User accounts, caller permissions, whitelists, blacklists, network access controls and encrypted signalling should be configured carefully. Default credentials should be changed, firmware maintained and administration limited to responsible staff. FourTeck can help buyers identify the questions to raise with their PBX provider or system integrator before the system is commissioned.

Grandstream GSC3505 Network, PoE and Provisioning Flexibility

The device offers a 10/100 Mbps Ethernet port with PoE and PoE+ support. For many fixed installations, this is the preferred connection because a single cable can carry both data and power from a compatible switch. Centralised PoE also allows technical teams to monitor port status and restart an endpoint remotely by cycling switch power. Where the network switch is connected to a UPS, paging speakers may continue operating during short power interruptions, subject to the capacity and design of the supporting infrastructure.

The switch power budget must be calculated for the full project. A switch may advertise PoE on every port but still have a total wattage limit that prevents all ports from delivering maximum power simultaneously. Buyers should provide the switch model, current connected devices and planned speaker count. Long cable runs, poor terminations and unsuitable cable categories can also create intermittent behaviour, so installation quality is part of reliability.

Dual-band Wi-Fi provides an alternative when Ethernet is not practical. The installer should confirm signal strength and roaming behaviour at the fixed mounting point, not at desk level. Ceiling materials, metal structures and nearby equipment can weaken coverage. Wireless credentials and security modes must also be compatible. For a critical announcement system, a wired design is usually easier to audit, while Wi-Fi may be useful in lower-risk locations or temporary deployments.

Provisioning support includes firmware updates through TFTP, HTTP, HTTPS or local upload, plus mass provisioning using an AES-encrypted XML configuration file. This can make multi-device deployment more consistent because settings are prepared once and applied in a controlled manner. Administrators should maintain configuration backups, document device names and locations, schedule firmware changes and test paging after every major update.

What Buyers Should Check Before Purchase

A model name alone does not confirm that a speaker will work well in a particular building. Before requesting a quotation, buyers should review the functional requirement, the surrounding communication platform and the physical site. This prevents wrong quantity estimates, missed accessories and unexpected installation work.

Correct Model Selection

Confirm that one-way audio is acceptable. Choose a talk-back speaker if people must reply, request help or communicate with a control room through the same endpoint.

Coverage and Quantity

Provide floor plans, room dimensions and noise conditions. Several correctly placed speakers may deliver better clarity than one unit operating at excessive volume.

PBX Compatibility

Share the PBX brand, version and licence status. Confirm SIP registration, paging groups, multicast support and any required user or extension capacity.

Network and Cabling

Check Ethernet availability, cable routes, switch port count, PoE power budget, VLAN policy, multicast handling and UPS coverage for network equipment.

Mounting Environment

The unit is intended for suitable indoor conditions. Confirm temperature, humidity, dust, moisture, ceiling material, safe access and protection from impact.

Accessories and Labour

Budget for network switches, injectors where appropriate, structured cabling, patch panels, lifts, brackets, testing time and configuration support.

Warranty Expectations

Ask how warranty handling works for the destination, who performs diagnosis, what documentation is required and whether replacement lead time affects operations.

Project Supply Planning

For bulk orders, confirm phased delivery, spare-unit policy, device labelling, configuration templates, acceptance testing and the preferred replacement model if supply changes.

The quotation request should state the destination country and city, quantity, intended use, room count, PBX platform, network switch model, required delivery schedule and support scope. Buyers comparing similar Grandstream models should also explain whether they need two-way conversation, higher speaker output, outdoor protection, call-button input or deeper facility-access integration. FourTeck can review these details and suggest a suitable option without forcing the decision around price alone.

Africa Availability and Service Support

FourTeck supports product enquiries across Africa with assistance for model selection, configuration review, quotation preparation, delivery coordination and warranty guidance. Availability can change according to supplier status, order quantity, destination, required lead time and whether the buyer needs a single unit or a project shipment. For this reason, the page does not claim immediate stock or a fixed delivery date.

A useful enquiry includes the number of speakers, site type, planned paging zones, existing SIP platform, preferred Ethernet or Wi-Fi connection and whether the available network switch provides PoE. Buyers should also identify any requirement for remote configuration, on-site installation coordination, administrator handover or testing. FourTeck can then help align the equipment list with the actual deployment rather than preparing a quotation from the model number alone.

For multi-site businesses, the supply plan may include standardised configuration templates, device naming, quantity by branch, spare units and staged delivery. Warranty support should be discussed before purchase so the responsible parties, diagnostic process and return route are understood. Where the GSC3505 is not the most suitable choice, FourTeck can guide the buyer toward a two-way, higher-output or newer related Grandstream model.

Contact FourTeck Sales

Africa Country and Regional Coverage

Businesses across Africa, including Kenya, Uganda, Nigeria, Ghana, Tanzania, Rwanda, Ethiopia, South Africa, Zambia, Botswana, Senegal and nearby regional markets, can contact FourTeck for availability guidance, quotation support and delivery coordination. The team can help procurement departments, IT managers, schools, healthcare providers, property managers, resellers and system integrators review the speaker requirement before committing to quantities.

Regional supply planning may differ because import procedures, delivery routes, local taxes, installation resources and warranty handling vary by destination. Buyers should provide the complete delivery address, expected timeline and project scope. For projects covering several countries, a consolidated bill of materials and branch schedule can help reduce mismatched quantities and inconsistent configurations.

FourTeck can also assist with related Grandstream components, including SIP phones, IP PBX platforms, access-control products, network switches and alternative paging speakers. Visit the FourTeck Africa technology platform, the Kenya business IT site or the Uganda business technology site for relevant regional enquiries.

GCC, Middle East and Africa Availability

FourTeck Africa can support business enquiries while related FourTeck platforms guide technology requirements across GCC, Middle East and Africa markets. Organisations operating between Africa, the UAE, Saudi Arabia, Qatar, Oman or Bahrain may need a consistent paging design for branches in several countries. A common technical standard can simplify support, but supply route, warranty handling, delivery terms and local installation responsibilities should be confirmed for each destination.

For regional rollouts, buyers should prepare a site schedule showing speaker quantity, PBX type, network readiness, mounting conditions and deployment date by location. This helps determine whether one model can be standardised or whether some sites need a higher-output, outdoor or talk-back product. Configuration templates should be reviewed against local VLAN plans and extension numbering so devices can be commissioned efficiently.

Availability and delivery options remain dependent on country, model status, supplier conditions, order volume and timing. FourTeck does not treat a regional request as a promise of local stock. Businesses can use the FourTeck UAE platform for suitable Middle East enquiries or contact the Africa team for guidance on the most practical supply route.

Other Options Buyers May Consider

The right alternative depends on whether the project needs two-way voice, more output, outdoor protection or a newer paging design. These related options help buyers frame the discussion; final specifications and availability should be confirmed before purchase.

Grandstream GSC3506 v2

Consider for multicast paging projects that may benefit from a newer speaker platform and additional installation choices.

View related speaker ↗

Grandstream GSC3510

Suitable for buyers who need a SIP intercom speaker with microphones for two-way communication rather than announcement-only use.

Explore talk-back option ↗

Grandstream GSC3516

A stronger two-way option for projects requiring higher output and multi-microphone talk-back capability.

Review GSC3516 option ↗

Grandstream GSC3518HS

Designed for projects that need a powerful horn-style speaker and suitability for demanding outdoor or large-area environments.

Check horn speaker option ↗

Grandstream UCM6300 Series

A potential communications platform for managing SIP extensions, paging groups and broader unified communications requirements.

Explore Grandstream IP PBX ↗

Business Network Switches

PoE switch capacity, VLAN design and multicast handling are central to reliable paging endpoint deployment.

View network switch solutions ↗

FourTeck can help compare these options around the actual buyer requirement. For example, a reception intercom requires different capabilities from a classroom bell replacement, and an outdoor loading yard requires different power and environmental protection from an indoor office corridor. Sharing the use case allows the team to recommend a more suitable path.

Why Buyers Choose FourTeck

Technology procurement becomes easier when the supplier understands how a device fits into the complete environment. FourTeck supports buyers with requirement review rather than presenting a speaker as an isolated item. The team can discuss the intended audience, number of zones, existing SIP system, network readiness, PoE capacity, mounting conditions and deployment schedule.

Business IT Supply Support

Assistance for single-site purchases, branch rollouts, reseller requirements and multi-location project planning.

Configuration Guidance

Review of SIP platform, paging groups, network connection, PoE, quantity and suitable alternatives.

Quote Assistance

Clear quotation preparation based on destination, quantity, timing, accessories and required support scope.

Africa Delivery Coordination

Guidance on practical delivery planning while recognising that routes and lead times vary by destination.

Warranty Guidance

Help understanding the warranty route, support expectations and documentation before the order is placed.

Related Product Matching

Identification of compatible IP PBX, network, access-control and alternative speaker products where required.

FourTeck does not rely on unverified claims about permanent stock, guaranteed lowest pricing or universal compatibility. Instead, buyers receive practical guidance based on the information available for the project. This approach is useful for procurement teams that must document why a particular model, quantity and support scope were selected.

Frequently Asked Questions

What is the GSC3505 used for?

It is a one-way SIP public address speaker used to broadcast announcements, pages and priority notifications in indoor business environments. Typical applications include offices, schools, clinics, warehouses, apartment common areas and retail facilities. It receives audio from a compatible SIP or multicast paging source. Because it does not provide a talk-back microphone, it is best where listeners only need to hear the message.

Does the speaker support two-way conversation?

No. The GSC3505 is designed as a one-way announcement speaker. People near the unit can hear a page but cannot reply through a built-in microphone. Buyers who need two-way intercom communication should consider a talk-back model such as the GSC3510, GSC3516 or another suitable device. FourTeck can help compare options based on pickup distance, speaker power and installation environment.

Can it connect through Wi-Fi instead of Ethernet?

Yes. It includes dual-band 2.4GHz and 5GHz 802.11 a/b/g/n Wi-Fi. However, fixed paging systems often benefit from wired Ethernet because it offers predictable connectivity and can provide power through PoE. Use Wi-Fi only after checking signal strength, security compatibility and reliability at the final mounting point. Critical announcement projects should also consider network and power resilience.

What network power does the unit require?

The speaker supports integrated PoE using IEEE 802.3af Class 3 and PoE+ using IEEE 802.3at Class 4. The network switch or injector must support a compatible standard and have enough available power budget. For multiple speakers, calculate total consumption alongside other PoE devices such as access points, cameras and IP phones. FourTeck can help review the proposed switch model and device count.

Is the GSC3505 available for African businesses?

FourTeck accepts enquiries from businesses across Africa and can assist with availability checks, quotations, configuration review and delivery coordination. Current supply depends on supplier status, order quantity, destination and timing. The team does not assume immediate stock. Share the required quantity, delivery location and project date so the most practical supply option or suitable alternative can be reviewed.

Can FourTeck help with SIP and paging configuration?

FourTeck can help clarify the required configuration scope and coordinate suitable pre-sales guidance. Buyers should provide the PBX brand, software version, extension plan, paging zones, VLAN details and preferred connection method. Implementation may involve the buyer’s IT team, communications provider or system integrator. Final configuration should be tested for call permissions, multicast behaviour, priority rules, audio level and network security.

How many speakers are needed for a building?

Quantity depends on room size, wall separation, ceiling height, background noise and the required listening level. A single speaker may cover a modest open area, while several rooms normally need multiple units. Large or noisy spaces may require higher-output products. A basic floor plan and room schedule help FourTeck or the installer estimate placement more accurately than choosing quantity from floor area alone.

Can businesses request bulk or multi-site supply?

Yes. Businesses, schools, healthcare groups, property managers, resellers and system integrators can request project quantities. The enquiry should include quantity by site, delivery locations, target schedule, preferred configuration and whether spare units are required. Multi-site orders may benefit from standard device names, configuration templates, phased delivery and an agreed acceptance test. Availability and commercial terms are confirmed during quotation.

What warranty guidance is available?

Warranty handling can depend on the supply channel, destination and order terms. Before purchase, buyers should confirm the warranty period offered in the quotation, the party responsible for diagnosis, the return procedure and any exclusions. FourTeck can provide guidance based on the proposed supply route. Keep serial numbers, invoices, installation records and configuration backups to support future troubleshooting or warranty requests.

How do I request a quotation?

Use the FourTeck contact page and provide the product model, quantity, delivery country and city, intended use, existing SIP platform, preferred wired or wireless connection and target date. Add room drawings or a site list for larger projects. The team can then review current availability, required accessories, suitable alternatives and the support scope before preparing a quotation.

Need Help Planning Your Paging Solution?

FourTeck can help review speaker quantity, SIP compatibility, PoE capacity, network readiness, warranty guidance and delivery requirements for your organisation. Share your site details to receive a more accurate product recommendation and quotation.

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