Sourcing VoIP gateways from China

Duty and classification for VoIP gateways

Heading 8517 covers telephone sets, communication apparatus and parts. A gateway receiving, converting and transmitting voice is a candidate for 8517 62 00 00. The other table rows cover conditional equipment categories and separately imported parts, rather than interchangeable codes for a complete gateway. For the wider heading and voice switching systems, see IP PBX systems.

Read from the UK Trade Tariff on 10 December 2026, all supplied lines show 0% duty for goods from China. No anti-dumping or countervailing duty or suspension is listed. The selected table lines have no attached import controls. Elsewhere in the heading, 8517 14 00 00 has a supplementary-unit import entry; if you also import wireless telephones classified there, confirm the declaration requirement with your customs broker. Import VAT is separate.

Give your broker the gateway's voice conversion functions, analogue connections, radio features and shipment contents. Confirm classification through finding your commodity code. The worked order is illustrative; its FOB value and freight are calculation inputs, not a supplier quotation. See UK import duty and VAT for the calculation method.

Specify line interfaces and call compatibility

Specify whether the gateway connects analogue handsets or an existing telephone line. Identify FXS handset ports and FXO line ports explicitly, including connector wiring and the intended ringing and disconnect behaviour. Agree the SIP service, codecs, caller identification, keypad signalling and simultaneous-call capacity. If fax operation is needed, include the intended fax machine in sample approval.

Approve the hardware revision, firmware, power adaptor and licences together. Test with the intended telephone service, firewall and analogue equipment. Agree administrator ownership, configuration export, restoration to replacement hardware, firmware update access and operation without the supplier's cloud account.

For wired gateways sold in Great Britain, check the manufacturer's electromagnetic-compatibility conformity assessment and importer identification. Confirm hazardous-substance compliance and retain the declaration of conformity. Products must show the importer's name or trademark and a contactable address on the product or packaging. The manufacturer must supply relevant instructions in English. Match documents to the actual gateway and adaptor through testing and certification.

Radio-equipped variants need radio-equipment safety, electromagnetic-compatibility and spectrum checks. Commercial importers supplying electrical equipment to the UK market have producer responsibilities, including annual registration. Confirm how the producer definition applies when importing solely for your own use. Before consumer supply, assess the consumer connectable-product security regime and confirm with the relevant authority whether an accompanying statement of compliance is required.

Worked duty example

Illustrative example, not a quote: Illustrative trial batch of boxed wired VoIP gateways for a business installer under 8517 62 00 00, invoiced at £2,000 free on board, with £1,000 of freight and insurance to the UK. The customs value is £3,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £3,000, so it is £600. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.

Inspection checklist

Interfaces: compare handset and line ports, connector wiring, power adaptors and accessories with the approved sample; test ringing, caller identification and call disconnection.

Calls: check incoming and outgoing calls, audio in both directions, keypad signalling and the agreed simultaneous-call load using the intended service and firewall; test fax operation where specified.

Recovery: check administrator access, configuration export and restoration, licence persistence, firmware updating and recovery after power or network interruption.

Identity and documents: match hardware revision, firmware and model labels to conformity documents and English instructions. Record the acceptance configuration in a quality inspection brief.

What goes wrong

Similar sockets can hide different electrical roles: a handset interface cannot simply replace a telephone-line interface. Incorrect line settings can leave calls connected after hang-up or prevent caller identification. A successful demonstration call can also hide missing keypad signalling or audio lost through the buyer's firewall. Approve the complete intended connection arrangement.

The quoted port count may exceed the licensed simultaneous-call capacity. Firmware substitutions can change service compatibility, while supplier-controlled accounts can block configuration or updates. Require approval before substitutions and record account ownership, licences, recovery arrangements and the tested firmware in the purchase specification.

Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For components and parts, see sourcing for manufacturers.