Name: Grandstream GBX20
Brand: Grandstream
Availability: InStock
Rating: 4.9 (130 reviews)

Grandstream GBX20 Overview

The Grandstream GBX20 is a professional-grade VoIP & Networking Product from Grandstream. Grandstream Networks is a leading manufacturer of IP phones, IP PBX, VoIP gateways, video conferencing, Wi-Fi networking and next-generation communication devices trusted by millions worldwide. Available in Lucknow through Call Soft Corporation — India's authorized dealer.

IP PhonesIP PBX / UCMVoIP GatewaysVideo PhonesDECT PhonesWi-Fi PhonesHotel PhonesDoor SystemsIP IntercomsWi-Fi APsNetwork Switches 📍 Lucknow ✅ Genuine Product 🛡️ Warranty

Grandstream GBX20 Services

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Grandstream GBX20 Setup in Indian Cities

Delhi Mumbai Bengaluru Hyderabad Chennai Kolkata Pune Ahmedabad Jaipur Surat Lucknow Kanpur Nagpur Visakhapatnam Indore Thane Bhopal Patna Vadodara Ghaziabad Ludhiana Agra Nashik Faridabad Meerut Rajkot Varanasi Allahabad Ranchi Howrah Coimbatore Jabalpur Gwalior Vijayawada Jodhpur Madurai Raipur Kota Guwahati Chandigarh Solapur Hubballi Amritsar Tiruchirappalli Bhubaneswar Kochi Noida Gurgaon Thiruvananthapuram Mysuru

Other Grandstream Models

GXP1610 GXP1615 GXP1620 GXP1625 GXP1628 GXP1630 GXP2130 GXP2135 GXP2140 GXP2160 GXP2170 GRP2601 GRP2601P GRP2601W GRP2602 GRP2602P GRP2602W GRP2602G GRP2603 GRP2603P View All →

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Recent Dispatch & Setup

Last Grandstream GBX20 setup verified in Lucknow: 01 Aug, 2026

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Grandstream GBX20 — India delivery available

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Customer Reviews for Grandstream GBX20

Highly rated by businesses across Lucknow.

★★★★★

"Expert team for Asterisk development and SIP trunk integration."

Deepak Reddy 22 Jul, 2026

★★★★☆

"Bought 50 Grandstream GRP series phones. Best bulk pricing received."

Neha G. 22 Jul, 2026