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15+ Years Manufacturing · Triple QC Inspection · CE / FCC / RoHS / ATEX Certified · ISO 9001
At DJSlink, quality is not a department — it's built into every solder joint, every firmware line, and every shipment label. From IEC-certified components to pre-shipment burn-in testing, we make sure what arrives at your site works on Day 1.
Our buyers are system integrators, industrial procurement managers, and government contractors who stake their reputation on every device they install.
One failure in a hospital intercom, or an ATEX-zone phone in a mine — is not acceptable. Neither is it for us.
This page exists to show you — specifically — how we make that promise real. Not with words, but with processes, certificates, and data.
See Our Certifications →"Will it work with my SIP platform on Day 1?"
→ DJSlink Answer:
Every unit is SIP protocol + API-tested before shipment. Compatibility verified against 3CX, Asterisk, FreePBX & ONVIF.
"Will it survive Zone 1 explosion risk and IP67 conditions?"
→ DJSlink Answer:
ATEX & IECEx 3rd-party certified, IP67-rated housing, tested in high-temp, high-humidity, and corrosive environments.
"Will my customers complain after delivery?"
→ DJSlink Answer:
<0.3% field defect rate, 18-month warranty, full QC report bundle included with every B2B shipment.
500+ SKUs across 20+ product lines — each with its own applicable certification set.
Click any badge to see what it means for your market and procurement process.
All certificates are current, on file, and provided with every B2B order upon request. Download Certificate Pack →
Raw Materials & Components
Mid-Line Production Checks
Pre-Shipment Full Inspection
🔗 Every unit that leaves our factory carries a serial number tied to its QC record.
Traceable. Accountable. Guaranteed.
Real photos from our Shenzhen manufacturing base and quality testing laboratory.
📍 DJSlink Manufacturing Base · Shenzhen, China · Factory visits welcome by appointment
Real feedback from verified B2B partners who've tested our products in the field.
All product lines covered as standard. No hidden conditions, no deductibles.
Full documentation pack with every B2B order — no extra charge, no request needed.
DOA or quality issue? Replacement ships before your follow-up email. Confirmed by partners.
Dedicated QC engineer on call · Mon–Sat UTC+8 · WhatsApp monitored 24/7
Tell us what you need. Our QC team will send everything in one email.
🎁 What You Receive:
Fill Once — Receive All Resources Within 4h
🔒 Confidential · No spam, ever · Delivered within 4 hours · NDA available for OEM projects
Prefer instant contact? Our quality team is available right now.
Request a Quote
“Our manufacturing capacity is designed to meet your needs, whether you're looking for small batch production or large-scale manufacturing solutions.”
DJSlink has been established for 15 years, providing OEM/ODM services for SIP Audio and Video Communication Solutions.
Our product range includes: VoIP gateways, IP PBXs, IP phones, SIP intercoms, SIP indoor stations, SIP access control devices, SIP broadcasting systems, industrial telephones, weatherproof heavy-duty phones, explosion-proof phones, vandal-resistant public phones, emergency phones, help points, call stations, as well as other products such as acoustic telephone hoods, telephone pillars, and accessories.
We welcome your interest and inquiries.
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