| Protocols SIP, H.323, MGCP, WebRTC | Codecs G.711, G.729, Opus, G.722 | Security SRTP, TLS 1.3 | Integration PBX, MS Teams, Webex, Zoom |
VoIP & IP TelephonyVoIP telephony transmits voice communication over IP networks — reliable, cost-efficient and seamlessly integrable into Unified Communications platforms such as Microsoft Teams, Cisco Webex and Zoom Phone. Complete VoIP range: SIP desk phones, IP DECT systems, IP telephone systems (IP-PBX), Session Border Controllers (SBC), VoIP gateways and ATA adapters for analogue endpoints. For MS Teams direct connection: Teams-certified SIP phones (Yealink MP, Poly CCX), direct number routing (Direct Routing) with SBC. Advice on licence-optimized Teams telephony. Expert advice: +49 7666 / 88499-0 | sales@industry-electronics.com | Leading Manufacturers: ✓ Cisco ✓ Yealink ✓ Snom ✓ Grandstream ✓ Avaya ✓ Mitel ✓ Polycom ✓ Auerswald |
Accessories

ATA

Miscellaneous

Router

Software

Telephone Systems

Telephones

VoIP-Gateways

VoIP-Interface-Cards

VoIP-Server
FAQ
VoIP & IP Telephony — which products are available?
Our range covers all leading manufacturers. Enquiry: sales@industry-electronics.com or Tel. +49 7666 / 88499-0.
Are volume discounts available?
Yes — tiered pricing for bulk orders and project quotes on request. Framework agreements for regular customers.
What warranty applies?
Manufacturer warranty per product. Lifetime warranty on many Cisco, HPE and Netgear products. Extended warranty on request.
Why Industry-Electronics?
| ✓ B2B specialist since 1990 Lieske Elektronik supplies companies, authorities and institutions – personal expert advice instead of anonymous mass processing. | ✓ 625,000+ articles All common interfaces, form factors and brands – IT hardware from one source for business, industry and public sector. | ✓ Project support & framework agreements Compatibility checks, volume pricing and rollout support. Direct contact: +49 7666 / 88499-0. |
