Fast dispatch and helpful advice before we placed a multi-site order. Pricing was clear and the product arrived ready for install.
Wesley G.
Grandstream HT818 8-Port FXS Gateway with Gigabit NAT Router
Authorised supply
Project support
UK delivery options
High demand this week
18 buyers viewed this product today. Need project pricing? Our team can quote bulk and renewal orders.
£200.00
Excl. VAT
Need multiples?
Volume discounts for installers, MSPs and resellers.
Fast UK fulfilment
Next-day and timed delivery options at checkout.
Price match help
Send us your project list for a sharper trade quote.
Genuine stock
Authorised supply with UK dispatch options.
Expert advice
Pre-sales sizing from security and IT specialists.
**Product Overview**
The **Grandstream** **HT818** V2 8 Port FXS Gateway with Gigabit NAT Router is a high-capacity analogue telephone adaptor (ATA) designed to connect analogue telephones, fax machines, and legacy PBX systems to modern SIP-based VoIP networks. Featuring eight FXS ports and an integrated Gigabit NAT router, the **HT818** V2 allows organisations to retain existing analogue equipment while gaining the advantages of IP telephony and enhanced security. It is suitable for small and medium-sized businesses, hospitality environments, enterprise deployments, and organisations migrating from traditional telephony systems.
The V2 model introduces enhanced security capabilities and updated hardware improvements while maintaining broad SIP interoperability and reliable voice performance. With support for multiple SIP profiles, T.38 fax functionality, and centralised management tools, the **HT818** V2 provides a scalable and cost-effective communication solution.
**Ideal For**
- Small and medium-sized businesses
- Enterprise environments
- Hospitality deployments
- Home office users
- Existing PBX integrations
- Fax machine connectivity
- Multi-site organisations
- VoIP migration projects
**Benefits**
The HT818 V2 enables businesses to modernise communications infrastructure while continuing to use existing analogue telephones and devices, reducing replacement costs and simplifying migration to SIP-based systems.
- Its integrated Gigabit NAT router reduces additional networking requirements while supporting multiple analogue devices from a single compact unit.
- Grandstream HT818 V2 8 Port FXS Gateway
- Power Supply Unit (PSU)
- Ethernet cable
- GPL licence statement / documentation
- 8 FXS ports for analogue device connectivity
- Supports 2 SIP profiles and 8 lines
- Integrated Gigabit NAT router
- 8 FXS ports for analogue device connectivity
- Supports 2 SIP profiles and 8 lines
- Integrated Gigabit NAT router
- Dual Gigabit Ethernet ports
- 3-way voice conferencing per port
- T.38 Fax-over-IP support
- Wideband HD voice codec support
- TLS and SRTP encryption
- Enhanced device security features
- Secure boot support
- Automated provisioning support
- TR-069 support
- GDMS cloud management compatibility
- Failover SIP server support
- Broad SIP interoperability
Telephony Features
- 8 × RJ11 FXS ports
- Supports 2 SIP profiles
- Supports up to 8 lines
- Caller ID support
- Call hold, transfer, forwarding and waiting
- Message waiting indication support
- Three-way conferencing per port
- Flexible dial plan support
- T.38 Group 3 fax relay support
Network Interfaces
- 2 × 10/100/1000Mbps Gigabit RJ45 ports
- Integrated NAT router
- DHCP client and server support
- QoS support
Audio Features
- G.711, G.723.1, G.726, G.729A/B, G.722, iLBC and Opus codec support
- Advanced line echo cancellation
- Dynamic jitter buffer
- Silence suppression support
Security
- TLS and SRTP encryption
- HTTPS secure management
- Secure boot support
- Unique security certificates per device
- Encrypted provisioning support
Management
- GDMS cloud management support
- TR-069 provisioning support
- XML configuration support
- Web-based management interface
Physical
- Desktop installation design
- LED indicators for network and phone status
- Compact form factor
**What's in the Box**
- Grandstream HT818 V2 8 Port FXS Gateway
- Power Supply Unit (PSU): Power accessory
- Ethernet cable
- Quick installation guide: Included documentation
- GPL licence statement / documentation
- Warranty documentation: Manufacturer warranty information
**Shipping and Fulfilment**
- **UK delivery:** Standard, express and timed services are shown at checkout where available.
- **Dispatch:** Stocked products are prepared for dispatch during normal business days.
- **Large or project orders:** Delivery timing is confirmed with the order or quotation.
- **VAT:** Product prices are displayed excluding VAT; VAT is calculated at checkout.
Grandstream HT818 8-Port FXS Gateway with Gigabit NAT Router
£200.00
Excl. VAT
· In stock for trade orders
Trade pricing availableNext-day UK dispatchAuthorised supplyProject quote supportSecure checkoutExpert pre-sales advice
Trusted by trade buyers
★★★★★
4.9 / 5 from 120+ verified reviews
WG
Wesley G
★★★★★
"CLI Secure has been our go-to for Fortinet hardware and renewals. Fast delivery and knowledgeable support every time."
KD
Keith D
★★★★★
"We ordered Grandstream phones for a full office rollout. The trade pricing and next-day delivery saved us both time and budget."
RM
Rania M
★★★★★
"Very professional IT networking supplier. Their pre-sales team helped us spec the right firewall for a multi-site deployment."
JT
James T
★★★★★
"Great stock availability on Hikvision cameras. Everything arrived well packaged and on time. Will order again."
Built for B2B buying
From product selection to deployment, this is made for real projects.
Get the hardware, licences and supporting kit you need without chasing multiple suppliers. CLI Secure helps trade buyers confirm fit, stock, delivery and project pricing before checkout.
1Check compatibility
2Choose fulfilment
3Deploy with support
Trade quote ready
Send your basket for quantity pricing and project supply checks.
Same basket support
Add licences, mounts, switches, storage or accessories with confidence.
Need fit advice?
Ask before checkout and avoid wrong-spec purchases.
Better buying value
Why trade buyers choose CLI Secure
CLI Secure
Best for projects
- Trade and bulk pricing support
- Compatibility advice before purchase
- UK delivery options and account support
- Hardware, renewals and accessories in one place
Generic marketplace
Low context
- Limited project advice
- Unclear warranty or channel source
- Harder to quote bundles and renewals
Buying direct
Slower procurement
- Separate suppliers for accessories
- Less flexible fulfilment for mixed baskets
- More admin for repeat trade orders
Why choose us
Procurement that feels fast, clear and trade-ready.
Every product page is designed to help you move from shortlist to checkout with fewer unknowns.
Authorised supply
Source genuine stock from known B2B channels.
Project help
Ask for fit checks, renewal advice and quantity pricing.
Fast dispatch
Choose UK delivery options for urgent deployments.
Secure checkout
Order online or speak to the team for larger baskets.
Verified buyer feedback
Trusted by installers, resellers and IT teams.
CLI Secure helped us confirm the right supporting accessories and saved us a return. Good trade service.
Keith D.Reliable fulfilment for security hardware and renewals. The team understands what business buyers need.
Rania M.Complete the basket
Related products for this project
Common questions
Product and order FAQs
Can I request trade or bulk pricing?
Yes. For multi-unit, reseller or project orders, contact CLI Secure and our team can review the basket for trade pricing.
How quickly can this be delivered?
Available delivery options are shown at checkout. Many in-stock products support next-day or timed UK delivery.
Can you help confirm compatibility?
Yes. Share the existing setup, model numbers or project requirement and we can help confirm suitable hardware, licences or accessories.
Do you supply renewals and supporting accessories?
CLI Secure supplies hardware, renewals, licences and related accessories across networking, CCTV, VoIP and IT support categories.