Grandstream GXW4108 8-Port FXO Gateway
R4,985.00 inc. VAT
The Grandstream GXW4108 is an 8-port FXO VoIP gateway that bridges existing PSTN analogue telephone lines with IP PBX systems. Featuring 8 FXO ports, 2× 10/100 Mbps network ports, and SIP video support, it provides a straightforward, cost-effective path for businesses to bring their legacy PSTN infrastructure into a modern VoIP environment without replacing existing cabling or handsets.
In stock
Description
Bridge Your PSTN Lines to Any IP PBX
The GXW4108 FXO gateway enables businesses of all sizes to create an easy-to-deploy VoIP solution, seamlessly connecting multiple locations and all devices within an office to any hosted or on-premise IP PBX network. For South African businesses still reliant on Telkom PSTN or analogue lines, the GXW4108 is the practical adapter that makes migration to VoIP possible without a full infrastructure overhaul.
Key Highlights
- 8× RJ11 FXO ports for connecting analogue PSTN telephone lines
- Dual 10/100 Mbps RJ45 network ports
- Designed and tested for full interoperability with leading IP PBXs, soft-switches, and SIP-based environments
- Compatible with Grandstream UCM series, FreePBX, Asterisk, and third-party IP PBX platforms
Broad Codec & Fax Support
Voice compression support covers G.711, G.723, G.726 (40/32/24/16kbps), G.729A/B/E, G.728, and iLBC, ensuring compatibility across a wide range of VoIP infrastructure. T.38 compliant Group 3 Fax Relay supports fax transmission up to 14.4kbps, with automatic fallback to G.711 for fax pass-through — meaning existing fax machines connected through PSTN lines continue to work reliably.
- G.711, G.723, G.726, G.729A/B/E, G.728, and iLBC voice codec support
- T.38 compliant fax-over-IP up to 14.4kbps with G.711 fax pass-through fallback
- SIP video support via H.264 codec
- G.168 compliant echo cancellation and dynamic jitter buffer
Reliability & PSTN Failover
PSTN failover on power failure ensures that even when the gateway loses power, PSTN calls can still pass through to analogue phones — a critical feature for businesses where continuous telephony availability is non-negotiable. This lifeline capability provides an added safety net in environments with unreliable power, making it especially relevant for South African deployments where load shedding is a real-world consideration.
- PSTN failover / lifeline on power failure
- G.168 compliant echo cancellation and dynamic jitter buffer for clear voice quality
- Modem detection and auto-switch
- Flexible dial plans for call routing control
Security & Easy Management
Advanced security protection with SRTP encryption protects call content in transit. Provisioning options include TFTP and HTTP for automated mass deployment, and the GXW4108 is compatible with GDMS — Grandstream’s free cloud management platform — for centralised configuration, monitoring, and firmware management alongside other Grandstream devices.
- SRTP encryption for secure voice transmission
- TFTP and HTTP provisioning for automated deployment
- GDMS compatible for free centralised cloud management
- Supports a wide range of caller ID formats
- Web UI and auto-discovery for straightforward initial setup
Proudly sold by the Ringwood Digital Store.
Additional information
| Weight | 1 kg |
|---|
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