Choosing the right IP phone can make or break the day-to-day communication of your business. Whether you run a 5-seat office, a 200-room hotel, a busy call center, or a warehouse floor, a well-matched VoIP phone delivers crystal-clear HD audio, easy management, and years of reliable service. This guide walks you through the complete Grandstream IP phone range available in India through Cohesive Technologies — the national distributor of Grandstream in India — so you can pick the right model with confidence.

What Is an IP Phone (and How Is It Different from a Traditional Phone)?

An IP phone — also called a VoIP phone or SIP phone — makes and receives calls over your internet/data network instead of traditional copper telephone lines. Voice is converted into digital packets and carried over the same network your computers already use, which means lower call costs, richer features, and far simpler scaling.

Compared to legacy analog handsets, IP phones add HD voice quality, multiple SIP accounts and lines on a single device, Power-over-Ethernet (PoE), programmable BLF/speed-dial keys, conferencing, and centralized provisioning across hundreds of devices. They connect to an on-premise or cloud IP-PBX / unified communications system and are the backbone of any modern office phone setup.

Why Choose Grandstream IP Phones?

Grandstream is one of the most widely deployed VoIP brands worldwide, and for good reason. The portfolio is engineered to make state-of-the-art telephony more accessible and easier to deploy than ever before, with a model for every budget and every use case:

A model for every need — from entry-level basic phones to carrier-grade executive desk phones, hotel handsets, and rugged Wi-Fi cordless devices.
HD audio & wideband codecs for natural, fatigue-free conversations.
Mass provisioning via GDMS (Grandstream Device Management System) so IT teams can configure and update fleets remotely.
Open SIP standard — works with virtually any IP-PBX or hosted VoIP platform.
Excellent price-to-performance, which is why they dominate SMB and enterprise deployments across India.

The Complete Grandstream IP Phone Range

Grandstream IP phones fall into five main families. Here’s how each one fits, with links to detailed specifications and datasheets.

1. GRP Series — Carrier-Grade IP Phones

The GRP series is Grandstream’s flagship line for businesses and service providers. These phones streamline communication and boost workload efficiency, scaling from simple 2-line desk phones up to 14-line executive models with touchscreens.

Popular models include the entry GRP2601 (2 lines, 2 SIP accounts) and GRP2602 (4 SIP accounts), the mid-range GRP2614 and GRP2615, and the high-end GRP2670 (12 lines, Wi-Fi, Bluetooth, 7-inch touchscreen) and GRP2650 (14 lines, 5-way conferencing). Best for: growing offices, executives, and reception desks that need expandability.

2. GXP Series — Basic, Mid-Range & High-End IP Phones

The proven GXP series spans dependable basic desk phones to feature-rich high-end handsets. Models like the GXP1610/1615 and GXP1630 cover everyday calling needs, while the GXP2135, GXP2140, and GXP2170 add more lines, Bluetooth, and multi-way conferencing for power users. Best for: cost-conscious deployments and busy professionals alike.

3. GHP Series — Hotel IP Phones

The GHP series hotel phones bring a sleek, guest-friendly design with optional Wi-Fi — ideal for hotels, dormitories, hospitals, and serviced apartments. The compact GHP610/611, GHP620/621, and newest GHP630/631 NEW models offer programmable service keys for front-desk, room service, and housekeeping. Best for: hospitality and healthcare.

4. WP Series — Wi-Fi Cordless IP Phones

The WP series cordless Wi-Fi phones are built for mobility and durability across retail, logistics, healthcare, and security environments. The line spans the WP810, the versatile WP820, and the latest Wi-Fi 6 models WP826 NEW and WP836, up to the WP856 Wi-Fi smartphone. Best for: staff who roam the floor but must stay connected.

5. DP Series — DECT Cordless IP Phones

For wide-area cordless coverage, the DP series DECT solution lets workers roam while staying connected. Pair a DP752 base station with DP730 or DP722 handsets, and extend range with the DP760 repeater. Best for: warehouses, campuses, and large retail floors.

Need more keys? Add a Grandstream extension module like the GBX20 to turn a desk phone into a full receptionist console.

How to Choose the Right IP Phone for Your Business

Use this quick comparison to match a Grandstream family to your environment:

Why Buy Grandstream IP Phones from Cohesive Technologies?

As the national distributor of Grandstream in India, Cohesive Technologies offers more than just hardware. You get expert pre-sales consultation, competitive distributor pricing, genuine warranty-backed products, and complete deployment support — from configuration and installation to ongoing technical support. As Grandstream’s official distribution partner, our reach extends across India, Sri Lanka, Nepal, and the Maldives, backed by a team that lives and breathes IP telephony.

Frequently Asked Questions

What is the difference between a VoIP phone and an IP phone?

The terms are used interchangeably. Both describe a phone that makes calls over an internet/data network using the SIP protocol instead of traditional analog telephone lines. “IP phone” emphasizes the network connection, while “VoIP phone” emphasizes the Voice-over-IP technology behind it.

Do Grandstream IP phones work with any PBX?

Yes. Grandstream IP phones use the open SIP standard, so they integrate with virtually any on-premise or cloud IP-PBX — including Grandstream’s own UCM series, as well as third-party and hosted platforms. They also support mass provisioning for easy fleet deployment.

Which Grandstream IP phone is best for a small office?

For most small offices, the GRP2601, GRP2602, or GXP1630 deliver excellent value with HD audio and the lines most teams need. Reception desks and executives benefit from higher-end models like the GRP2615 or GXP2170 with more keys and a larger display.

Are Grandstream Wi-Fi cordless phones suitable for warehouses?

Yes. The WP series (including the Wi-Fi 6 WP826 and WP836) is built for mobility and durability in retail, logistics, and industrial settings. For very large sites without full Wi-Fi coverage, the DP DECT series offers long-range cordless roaming from a central base station.

Does Cohesive Technologies provide installation and support in India?

Yes. Cohesive Technologies is the national distributor for Grandstream in India and provides consultation, configuration, installation, and ongoing technical support across India, Sri Lanka, Nepal, and the Maldives.

Explore the full Grandstream IP phone range or browse all HD IP phones at Cohesive Technologies.