Products of Grandstream
Grandstream: VoIP Systems & Network Solutions for Industry and Commerce
Grandstream IP phones, VoIP gateways, IP PBX systems, network switches, access points and video conferencing solutions – complete unified communications infrastructure at Lieske Elektronik for commercial and industrial users.
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2002
Founded
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500+
Employees worldwide
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150+
Countries worldwide
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UC & Net
Full-stack portfolio
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Unified Communications & Networking from One SourceGrandstream Networks was founded in 2002 in Boston, USA and has developed into one of the world's leading providers of VoIP communication and network solutions for businesses of all sizes. The product portfolio covers the entire unified communications spectrum – from IP desk phones to cloud PBX platforms and network switches. What makes Grandstream unique: the company is one of the few manufacturers to offer a complete UC portfolio of IP phones, IP PBX systems (UCM series), VoIP gateways, network switches, WLAN access points, video conferencing solutions and access control systems – all from one source, seamlessly integrable. The UCM series (IP PBX) provides on-premise telephone systems for up to thousands of users, free of charge and without licence fees – a decisive advantage for SMEs that prefer to avoid proprietary cloud services. |
Certifications & Compatibility
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Product Families at a Glance
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◆ UCM Series – IP PBX Systems
On-premise telephone systems for SMEs and large enterprises – without licence costs. UCM6300 series supports up to 3,000 users, integrated IVR, conference bridge, voicemail, call centre features and SIP trunk connectivity.
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◆ IP Desk Phones & Conference Phones
GRP series (business phones) and GXP series for all business sizes. Android-based touchscreen phones (GXV series) and dedicated video conferencing desk phones for meeting rooms and conference areas.
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◆ VoIP Gateways & ATAs
Analog telephone adapters (ATA) and VoIP gateways for migration from analogue and ISDN lines to SIP/IP telephony. Multi-port gateways for connecting fax machines, DECT bases and alarm devices.
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◆ Network Switches & WLAN
Managed and unmanaged PoE switches (GWN series) and enterprise WLAN access points for professional network infrastructures. Centrally managed via Grandstream Device Management System (GDMS).
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Sectors & Application Areas
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⚡ SME & Mid-Market
Complete IP telephone systems without licence fees. UCM PBX, IP phones and network from one system – cost-efficient and easy to administer.
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★ Hotel & Hospitality
IP telephony solutions for reception, rooms and housekeeping. Integrated PMS interface, wake-up calls and voicemail for hotel operations of any size.
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► Call Centres & Service
UCM PBX with ACD, IVR, call queues and real-time monitoring. Scalable solution for call centres and customer service without proprietary licence costs.
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◆ Industry & Production
Robust IP phones, SIP intercoms and paging systems for production halls, warehouse areas and factory sites.
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► Education & Public Sector
Schools, universities and authorities: scalable IP communication, central management and open standards without vendor lock-in.
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★ Healthcare
IP communication and intercom solutions for hospitals, clinics and care facilities – secure encryption, reliable connectivity.
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Your Advantages with Grandstream
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Frequently Asked Questions about Grandstream
What is the Grandstream UCM telephone system and what advantages does it offer?
The UCM series (e.g. UCM6308A, UCM6510) are on-premise IP telephone systems based on Asterisk – without monthly licence fees. Features such as IVR, ACD, voicemail-to-email, conference bridge, fax-to-email, CRM integration and call centre reporting are included. Suitable for 10 to over 3,000 users.
Are Grandstream products compatible with existing SIP telephone systems?
Yes. All Grandstream IP phones and gateways support the open SIP standard (RFC 3261) and are compatible with most common IP PBX systems (Asterisk, FreePBX, 3CX, UCM, Cisco, Avaya and others). No replacement of the telephone system is required.
How are Grandstream devices centrally configured and managed?
The free Grandstream Device Management System (GDMS) enables central provisioning, configuration and monitoring of all devices – including across multiple sites. Zero-touch provisioning enables automatic configuration of new devices without manual on-site setup.
Grandstream – Request a Quote
VoIP telephone systems, IP phones and network solutions for your business – personal consultation by our specialists.
Request now
Homepage:
www.grandstream.com/Categories with products from Grandstream
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- IT-Equipment ➤ Networks ➤ Switches ➤ Modules ( 2 )
- IT-Equipment ➤ Networks ➤ VoIP ➤ Accessories ( 1 )
- IT-Equipment ➤ Networks ➤ Wireless Networking ➤ Bridges ( 23 )
- Technology ➤ Telecommunication ➤ Accessories ( 3 )
- Technology ➤ Telecommunication ➤ System Telephones DECT ( 14 )
- Technology ➤ Telecommunication ➤ System Telephones IP ( 1 )
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 Grandstream 121404Grandstream GXP-1625 PoEThe model GXP1625 is Grandstream s standard IP phone for small and medium businesses. The Linux-based phone can handle two SIP trunks / identities and has three user-programmable soft keys, HD audio, ... Lieske Part No.: 780577 Mfg Part No: 121404 |
50,05 EUR
 ≈ £42.54 | ≈ $56.21
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Grandstream 136171Grandstream 136171 Netzteil EU 5V/600mA Zuverlässige Stromversorgung für Ihre Grandstream-Geräte – das kompakte Grandstream EU-Netzteil liefert präzise Leistung dort, wo sie gebraucht wird. Mit robustem Design, EU-Stecker und stabiler ... Lieske Part No.: 152306 Mfg Part No: 136171 |
-16% 3,72 EUR 4,43 EUR
≈ £3.16 | ≈ $4.18
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Grandstream 24V/6.25A PSUGrandstream 24V/6.25A PSU (GXW4248v2) Lieske Part No.: 226490 Mfg Part No: 24V/6.25A PSU |
63,53 EUR
≈ £54.00 | ≈ $71.35
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Grandstream 5V/600mA PSUGrandstream 5V/600mA PSU Ersatznetzteil EU 5V/600mA Lieske Part No.: 2205227 Mfg Part No: 5V/600mA PSU |
-17% 3,99 EUR 4,82 EUR
≈ £3.39 | ≈ $4.48
Made to order · Delivery time approx. 20 workdaysinfo_outline
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Grandstream ATA-286Grandstream ATA286 HandyTone Rev. 2.0 Grand HandyTone ATA-286 rev. 2.0 Voice Over IP Adapter The Grand Stream Handytone ATA-726,4 cm ( 286 inch ) is an analog of the next generation Voice over IP adapter, designed to "Open Industry ... Lieske Part No.: 840079 Mfg Part No: ATA-286 |
19,71 EUR
≈ £16.75 | ≈ $22.13
in stockinfo_outline
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Grandstream DP720Grandstream DP720 DECT handset The DP720 DECT VoIP phone, in conjunction with the "159Grandstream2415,5 cm ( 951 inch )s VoIP DECT base station DP750 flexible and mobile communications for the office and commercial use, as well as ... Lieske Part No.: 855071 Mfg Part No: DP720 |
63,85 EUR
≈ £54.27 | ≈ $71.70
Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
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Grandstream DP722Grandstream DECT handset DP722 The DP722 is a mobile DECT IP telephone for the best possible accessibility and mobility in a wide range of application areas, e.g. in retail, logistics and in a wide range of business and private ... Lieske Part No.: 1165749 Mfg Part No: DP722 |
63,85 EUR
≈ £54.27 | ≈ $71.70
Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
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Grandstream DP725Grandstream DP725 DECT handset Grandstream DP725 DECT IP-Telefon Das Grandstream DP725 ist ein DECT IP-Telefon für eine professionelle VoIP-Kommunikation. Es bietet hervorragende HD-Audioqualität, eine hohe Reichweite und eine ... Lieske Part No.: 1166901 Mfg Part No: DP725 |
57,00 EUR
≈ £48.45 | ≈ $64.01
Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
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Grandstream DP730GRANDSTREAM DP-730 DECT cordless IP phone Supports a range of up to 400 meters outdoors and 50 meters indoors when used with the DP752 (300 meters outdoors when used with the DP750) - 2.4 inch (240x320) color LCD with 3 programmable soft keys ... Lieske Part No.: 1165748 Mfg Part No: DP730 |
94,05 EUR
≈ £79.94 | ≈ $105.62
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Grandstream DP735Grandstream DP735 Robust wireless DECT-HD mobile phone Grandstream DP735 DECT IP-Telefon Das Grandstream DP735 ist ein robustes DECT IP-Telefon, das für eine hohe Mobilität in Unternehmen sorgt. Mit exzellenter HD-Audioqualität, einer ausgezeichneten ... Lieske Part No.: 1385938 Mfg Part No: DP735 |
94,05 EUR
≈ £79.94 | ≈ $105.62
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Grandstream DP750Grandstream DP750 DECT base station The DP750 DECT VoIP base station allows the connection and management of up to 5 Grandstream DP720 handsets and thus represents a powerful and flexible solution for the office, commercial, and private ... Lieske Part No.: 972198 Mfg Part No: DP750 |
74,21 EUR
≈ £63.08 | ≈ $83.34
Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
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Grandstream DP752Grandstream DECT base station DP752 Pair with up to 5 Grandstream DP series DECT handsets through instant pairing with a dedicated pairing button - Up to 10 SIP accounts per system up to 10 lines per handset - Supports an outdoor range ... Lieske Part No.: 1165745 Mfg Part No: DP752 |
69,90 EUR
≈ £59.42 | ≈ $78.50
Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
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Grandstream DP755Grandstream DP755 DECT base station Features:Up to 20 SIP accounts per system up to 20 lines per handset - DECT authentication and encryption technology to protect calls and accounts - 3-way audio conferencing for easy conference calls ... Lieske Part No.: 1156324 Mfg Part No: DP755 |
65,55 EUR
≈ £55.72 | ≈ $73.61
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Grandstream DP760Grandstream DP760 repeater Up to 2 simultaneous HD calls - Extends the range by 300 meters outdoors and 50 meters indoors for additional mobility - Automatic or manual connection with DP750, base station for easy use - Supports ... Lieske Part No.: 1118473 Mfg Part No: DP760 |
122,55 EUR
≈ £104.17 | ≈ $137.62
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Grandstream Europe PSUGrandstream Europe PSU Power Supply Unit EU 12V / 1, 5A Grandstream Power Supply Unit EU 12V / 1, 5A Input: 100-240V, 50 / 60Hz Output: 12V 1.5A Lieske Part No.: 341657 Mfg Part No: Europe PSU |
6,26 EUR
≈ £5.32 | ≈ $7.03
in stockinfo_outline
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Grandstream F-MM850-300M-10GGrandstream F-MM850-300M-10G Multimode-SFP/SFP+-Glasfasermodul Beschreibung: Grandstream F-MM850-300M-10G Multimode - SFP/SFP+ -Glasfassermodul, mit dem Sie eien LAN Enterprise-Klasse einrichten oder allgemein als optische Verbindung in einem ultraschnellen ... Lieske Part No.: 1066122 Mfg Part No: F-MM850-300M-10G |
22,80 EUR
≈ £19.38 | ≈ $25.60
Delivery time from supplier's stock (ca.) 9 workdaysinfo_outline
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Grandstream F-MM850-550M-1.25GGrandstream F-MM850-550M-1.25G multimode SFP fiber module Beschreibung: Grandstream F-MM850-550M-1.25G Multimode - SFP-Glasfassermodul, mit dem Sie eien LAN Enterprise-Klasse einrichten oder allgemein als optische Verbindung in einem ultraschnellen Netzrk ... Lieske Part No.: 1066307 Mfg Part No: F-MM850-550M-1.25G |
14,26 EUR
≈ £12.12 | ≈ $16.01
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Grandstream F-SM1310-10KM-10GGrandstream F-SM1310-10KM-10G Multimode SFP/SFP+ fiber module Beschreibung: Der Grandstream SFP+ Single Mode Transceiver ist eine hochleistungsfähige Lösung für die Datenübertragung in Netzwerken. Mit einer maximalen Datenübertragungsrate von 10 Gbit/s und ... Lieske Part No.: 226262 Mfg Part No: F-SM1310-10KM-10G |
33,25 EUR
≈ £28.26 | ≈ $37.34
Delivery time from supplier's stock (ca.) 6 workdaysinfo_outline
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Grandstream GAC2500Grandstream GAC2500 SIP audio conference system Android (version 4.4) based HD AudiokonferenzsystemBis to 6 SIP KontenHD Audio3 Mikrofone10,9 cm ( 4,3 inch )capacitive touch display Gigabit NetzwerkanschlussWI-Fi (802.11b / g / n) BluetoothGoolge ... Lieske Part No.: 130186 Mfg Part No: GAC2500 |
390,80 EUR
≈ £332.18 | ≈ $438.87
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Grandstream GBX20Grandstream SIP zub. GBX-20 Extension LCD keypad 20 lines per page Each module has 2 pages for up to 40 lines or functions, up to 160 lines with 4 cascaded modules 4.3 272x480 color TFT LCD display Local GUI user interface, controlled via phone ... Lieske Part No.: 1554210 Mfg Part No: GBX20 |
157,04 EUR
≈ £133.48 | ≈ $176.36
Delivery time from supplier's stock (ca.) 7 workdaysinfo_outline
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Grandstream GCC6010Grandstream GCC6010 UC + network convergence solutions Grandstream GCC6010 UC + Netzwerk-Konvergenzlösungen Das Grandstream GCC6010 UC ist eine Vereinigungslösung für UC und Netzwerkkommunikation, die eine leistungsstarke Plattform zur Verwaltung von ... Lieske Part No.: 292305 Mfg Part No: GCC6010 |
380,00 EUR
≈ £323.00 | ≈ $426.74
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Grandstream GCC6010WGrandstream GCC6010W UC + network convergence solutions Grandstream GCC6010W UC + Netzwerk-Konvergenzlösungen Das Grandstream GCC6010W UC ist eine erweiterte Lösung für Unified Communications (UC) und Netzwerk-Konvergenz, die eine vollständige ... Lieske Part No.: 292308 Mfg Part No: GCC6010W |
403,75 EUR
≈ £343.19 | ≈ $453.41
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Grandstream GCC6011Grandstream GCC6011 UC + network convergence solutions Grandstream GCC6011 UC + Netzwerk-Konvergenzlösungen Das Grandstream GCC6011 UC ist eine hochentwickelte Lösung für Unified Communications (UC) und Netzwerk-Konvergenz, die die komplette ... Lieske Part No.: 292372 Mfg Part No: GCC6011 |
436,05 EUR
≈ £370.64 | ≈ $489.68
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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Grandstream GCC6020Grandstream GCC6020 UC + network convergence solutions Grandstream GCC6020 – Intelligenter Netzwerk- & IoT-Controller Der Grandstream GCC6020 bietet eine zentrale Plattform zur Verwaltung von Grandstream IP-Telefonen, Kameras, Access Points und ... Lieske Part No.: 598478 Mfg Part No: GCC6020 |
664,05 EUR
≈ £564.44 | ≈ $745.73
Delivery time from supplier's stock (ca.) 4 workdaysinfo_outline
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