10 Best Grandstream in 2026

You have a VoIP service running, and suddenly every Grandstream model looks plausible. The HT series, the GXP range, the GRP line, the video phone that costs as much as a cheap laptop. Grandstream makes gear for everyone from a one-person home office to a hundred-seat call center, and the differences between their eight-port ATA and their twelve-line desk phone are not obvious at first glance. We sorted through the lineup to find the best Grandstream products for real use cases, whether you need a simple adapter to keep your analog phone alive, a tough cordless handset for a warehouse, or a multi-line executive desk phone with video conferencing built in. Here are ten picks that cover the spectrum.

TL;DR: The Grandstream HT802 V2 is the ATA most people should buy: two FXS ports, rock-solid reliability. The GRP2612W is the desk phone that hits the sweet spot for Wi-Fi and four-line support. The GXV3370 is the flagship video phone for executives. And the HT801 v2 is the cheapest way to add one analog line to a VoIP network.

#	Product	Lines / SIP Accounts	Network	Key Feature	Best for
1	Grandstream HT802 V2	2 FXS ports	10/100	TLS/SRTP security, 3-way conferencing	Adding two analog phones to VoIP
2	Grandstream HT812 V2	2 FXS ports	10/100	Built-in NAT router, per-unit AES encryption	A home office needing a router plus two analog lines
3	Grandstream HT801 v2	1 FXS port	10/100	Compact size, zero-config with UCM PBX	One analog device on VoIP
4	Grandstream GXP1625	2 lines / 2 SIP	10/100 PoE	HD audio, 500-contact phonebook	A basic desk phone on a tight budget
5	Grandstream GXP2135	8 lines / 4 SIP	Gigabit PoE	Bluetooth, USB, 32 BLF keys	A receptionist or power user needing lots of speed-dials
6	Grandstream GRP2612W	4 lines / 4 SIP	10/100 PoE + Wi-Fi 5	Swappable faceplate, dual-band Wi-Fi	An office where running Ethernet to every desk is impractical
7	Grandstream GRP2613	6 lines / 4 SIP	Gigabit PoE	Noise shield, up to 24 BLF keys	A busy desk with six lines and zero tolerance for background noise
8	Grandstream GXP2170	12 lines / 6 SIP	Gigabit PoE	4.3-inch color display, 48 BLF keys, expandable	A call center or executive who manages many lines
9	Grandstream WP826	1 line (SIP)	Wi-Fi 6 (dual-band)	Cordless, 4-inch color display, Wi-Fi 6	A warehouse or retail floor where cordless mobility matters
10	Grandstream GXV3370	16 lines / 16 SIP	Gigabit PoE+	7-inch touch, Android 7.0, HD video camera	An executive needing video conferencing on the desk

How we picked

Before you sort through ten models, understand what separates a good Grandstream buy from a bad one.

• Line and SIP account capacity. A two-line desk phone is fine for a single receptionist. An executive managing multiple trunks needs twelve lines and six SIP accounts. Estimate your growth: running out of line capacity means replacing the phone.
• Network speed and PoE. Switched Gigabit Ethernet with Power over Ethernet lets you daisy-chain a computer and avoid a separate power brick. Fast Ethernet (10/100) is fine for voice-only work, but if you also pass data through the phone, Gigabit prevents bottlenecks.
• Wi-Fi versus wired. Some Grandstream phones have built-in Wi-Fi, saving you a cable run. But Wi-Fi 5 is fine for voice; Wi-Fi 6 (on the WP826) adds future-proofing and better roaming. Make sure your access points are close enough.
• Display and usability. A 2.4-inch monochrome display works for basic call handling. A 4.3-inch color touch screen with programmable BLF keys turns a phone into a productivity console. Receptionists and call center agents benefit from larger screens and more keys.
• Expandability. The GXP2170 supports expansion modules for up to 160 BLF keys. If your phone is a command center, that matters. Most models max out at 16 to 48 on-screen keys.
• Form factor: corded vs. cordless. Cordless Wi-Fi phones let you walk the floor, but they are single-line devices with shorter battery life. Corded models offer superior audio and never need charging.

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1. Grandstream HT802 V2: Best Analog Telephone Adapter for Two Lines

Pros

• Two independent FXS ports for separate phone numbers or a fax line
• TLS and SRTP encryption for call security
• 3-way voice conferencing per port
• Automated provisioning via TR-069 and XML

Cons

• Only Fast Ethernet (10/100), not Gigabit
• No built-in router (unlike the HT812 V2)
• Plastic casing feels light

Best for Anyone who needs to connect two analog devices to a VoIP service with enterprise-grade security.

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The HT802 V2 is the ATA that Grandstream has been refining for years. Two FXS ports let you keep a cordless phone on one and a fax machine on the other, or give two different desks their own numbers without buying a second adapter. It supports T.38 fax-over-IP reliably, which matters more than you think when the fax machine is the only way your accountant accepts documents.

Security is handled with TLS and SRTP, so call content and registration credentials stay protected. The provisioning options are flexible: you can use TR-069 for remote management or drop an XML config file on a TFTP server. The phonebook features and caller ID formats are broad enough for international use.

The catch is the Ethernet port. It is 10/100, which is fine for voice traffic, but if you plan to connect a computer through the ATA, the bottleneck will show during file transfers. The plastic case is serviceable but not the rigid metal of some competitors. Still, for a two-port ATA that just works with any SIP provider, the HT802 V2 is the one we recommend first.

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2. Grandstream HT812 V2: Analog Adapter with a Built-in Router

Pros

• Two FXS ports plus a NAT router in one box
• Per-unit AES encryption with individual security certificates
• Wideband HD audio codec support
• 3-way conferencing per port

Cons

• Still Fast Ethernet only
• Router is basic (no advanced QoS controls)
• Setup is slightly more complex than the HT802 V2

Best for A home office that needs a simple router and two analog lines without adding extra hardware.

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The HT812 V2 sits one step above the HT802 V2 by adding a built-in NAT router. If your VoIP provider requires static IP routing or you want to avoid buying a separate router for a small satellite office, this saves a power outlet and a cable. The two FXS ports behave identically to the HT802 V2, with the same T.38 fax support and HD audio.

The encryption here is per-unit with an individual AES certificate, a step up from shared-key models. The voice quality is noticeably better than older ATAs thanks to the wideband HD codec support. Conferencing is three-way per port, which is adequate for most small-office calls.

The router is basic. Do not expect VLAN tagging or deep packet inspection. If your network needs that, stick with the HT802 V2 and use your own router. But for a straightforward plug-and-play setup where you need two analog lines and a router, the HT812 V2 is the cleaner choice.

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3. Grandstream HT801 v2: Single-Port ATA for the Minimalist

Pros

• Compact footprint (4 inches wide)
• Supports TLS and SRTP
• 3-way conferencing on the single port
• Zero-config with Grandstream UCM PBX

Cons

• Only one FXS port – no expansion
• Fast Ethernet only
• No router function

Best for Adding exactly one analog device (a cordless base or a fax) to a VoIP network at the lowest complexity.

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The HT801 v2 is the HT802 V2 trimmed to a single port. If you have only one analog phone that needs to keep working after you switch to VoIP, this is the simplest path. It shares the same security stack (TLS/SRTP), the same provisioning flexibility, and the same 3-way conferencing capability. The size is genuinely small: you can hide it behind a monitor or tuck it into a wiring closet.

Grandstream’s zero-configuration feature with their UCM series PBX means the ATA registers automatically. For standalone use with any SIP provider, you configure it once through the web interface and forget about it.

The limitation is obvious: only one device. If you later add a second analog phone, you must buy another ATA. The Ethernet port is 10/100, which is fine for voice but not for daisy-chaining a computer. For its intended role – a simple, secure bridge for one analog line – the HT801 v2 is nearly flawless.

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4. Grandstream GXP1625: Entry-Level Desk Phone That Gets the Basics Right

Pros

• HD wideband audio on handset and speakerphone
• 2 SIP accounts with dual-color line keys
• Large 500-contact phonebook
• TR-069 provisioning for easy deployment

Cons

• Only two lines – no room to grow
• Grayscale LCD, not color
• 10/100 Ethernet, no Gigabit

Best for A single-line desk where all you need is reliable voice and a big phonebook.

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The GXP1625 is Grandstream’s most basic IP phone, and that is exactly its strength. It does not try to be a BLF management console or a Wi-Fi hotspot. It does make calls, and it sounds excellent doing it. The HD audio codec support (including G.722) makes conversations clearer than many phones twice its size. The speakerphone is full-duplex with acoustic echo cancellation that actually works in a busy room.

The 2.9-inch LCD is backlit and pixel-based, so it is readable in low light, but it is not color and does not show presence information in the same way a color screen would. Two line keys with dual-color LEDs let you manage two calls, and the 500-contact directory is generous for a basic phone.

The Ethernet ports are 10/100 with PoE, so you do not need a power adapter if your switch supports PoE. But if you plan to run a computer through the phone, the bandwidth is a real limit. The GXP1625 is perfect for a guest office, a break room, or any desk where a single line and decent audio are the only requirements.

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5. Grandstream GXP2135: Mid-Range Desk Phone with Bluetooth and BLF Keys

Pros

• 8 lines, 4 SIP accounts – plenty of capacity
• 32 programmable BLF/speed-dial keys
• Bluetooth for headset and mobile device sync
• Gigabit Ethernet with PoE

Cons

• Display is only 2.8 inches
• No expansion module support
• Bluetooth range is average

Best for A receptionist or power user who needs fast access to dozens of colleagues without sacrificing line capacity.

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The GXP2135 bridges the gap between the cheap two-line phones and the expensive multi-line flagships. Eight lines and four SIP accounts cover most office scenarios, and the 32 on-screen BLF keys let you monitor extension status at a glance. Those keys are the star here: you can assign them as speed-dials, line presence monitors, or programmable function keys without needing an expansion module.

Bluetooth is built in, so you can pair a wireless headset or sync your smartphone’s contacts and calendar. The USB port on the back adds another way to load contacts or capture call logs. The dual Gigabit ports with PoE keep the desk clean and the network fast.

The 2.8-inch color display is adequate but feels cramped when you have 32 BLF keys occupying the screen. The font is small. If you want more screen real estate, the GXP2170 is a better fit. The GXP2135 also lacks expansion module ports, so you cannot add physical BLF keys later. For a reception desk that needs a moderate number of extensions and Gigabit speeds, though, this is the best Grandstream phone under the flagship tier.

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6. Grandstream GRP2612W: The Wi-Fi-Equipped Workhorse for Difficult Desks

Pros

• Built-in dual-band Wi-Fi 5 (802.11ac)
• 4 SIP accounts with 4 line keys
• Swappable faceplate for logo customization
• Enterprise-level secure boot and encrypted storage

Cons

• Ethernet ports are 10/100, not Gigabit
• Wi-Fi must be enabled by unplugging Ethernet
• Display is only 2.4 inches

Best for An office where running Ethernet to every desk is impossible or you need to relocate phones frequently.

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The GRP2612W belongs to Grandstream’s GRP series, which is designed for carrier-grade deployment. The headline feature is built-in dual-band Wi-Fi 5. If your desks lack Ethernet drops, or you reconfigure floor plans often, this lets you put a phone anywhere within Wi-Fi range. There is a quirk: you must disconnect the Ethernet cable to enable Wi-Fi, but that is a one-time setup step.

The phone supports four SIP accounts, and the four line keys are multipurpose. You get 16 digital BLF keys on the screen, which is less than the GXP2135 but enough for a small team. HD audio with Opus codec support makes calls sound natural even over Wi-Fi.

The faceplate is swappable, so you can print your company logo or department name on it. That is a small touch but appreciated in branded office environments. The security features are enterprise-grade: secure boot, dual firmware images, and encrypted data storage. The downside is that the Ethernet ports are 10/100, which matters if you daisy-chain a computer. For voice-only Wi-Fi use, the slower wired port is irrelevant. The GRP2612W is our top recommendation for any desk that cannot have a cable running to it.

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7. Grandstream GRP2613: Six Lines with Noise-Shield Technology

Pros

• 6 line keys for up to 6 SIP accounts
• Integrated noise shield technology
• Gigabit Ethernet with PoE
• Swappable faceplate

Cons

• Wi-Fi is not included (the GRP2613W adds it)
• Display is still 2.8 inches
• No Bluetooth

Best for A busy desk where the user manages multiple lines and needs the quietest possible audio in a noisy environment.

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The GRP2613 takes the GRP2612W formula and swaps Wi-Fi for more lines and a wired Gigabit connection. Six multipurpose line keys give you room for six separate lines or a mix of lines and features. The noise shield technology is not a marketing gimmick: it actively minimizes background noise picked up by the microphone, so callers hear you clearly even if you are in a loud open office.

Gigabit Ethernet with PoE means you get full network speed and power over a single cable. The display is the same 2.8-inch color screen as the GXP2135, but the interface is slightly cleaner on the GRP series. You can swap the faceplate to brand the phone.

The missing Wi-Fi may be a dealbreaker if you need wireless. The GRP2613W (not on our list) adds Wi-Fi 6 and Bluetooth, but it costs more. For a wired desk that demands six lines and pristine audio, the GRP2613 is the one to buy.

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8. Grandstream GXP2170: Twelve-Line Powerhouse with Expansion Options

Pros

• 12 lines, 6 SIP accounts
• 48 on-screen BLF keys
• Supports up to four GXP2200EXT modules for 160 total BLF keys
• 4.3-inch color display

Cons

• Large footprint on the desk
• No built-in Wi-Fi or Bluetooth
• Expansion modules add cost and cabling

Best for A call center manager, executive assistant, or power user who needs to monitor dozens of extensions at once.

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The GXP2170 is Grandstream’s traditional flagship desk phone. Twelve lines and six SIP accounts give you more headroom than almost any office needs. The 4.3-inch color display is large enough to show 48 BLF keys clearly, and if you need more, you can attach up to four GXP2200EXT expansion modules, bringing the total to 160 speed-dial or presence keys. That is the kind of capacity that makes a receptionist or a call center supervisor truly efficient.

The phone has five soft keys and a five-way conference bridge. It supports Gigabit Ethernet with PoE, so the network connection is fast and the desk stays clean. The sound quality is excellent, with HD audio on the handset and speakerphone.

The trade-off is size. The GXP2170 is a big phone, and if you have a shallow desk, it may feel intrusive. It also lacks Wi-Fi and Bluetooth, so you are tethered to Ethernet and a wired headset unless you use a USB adapter. For anyone who manages a large team’s presence, though, the GXP2170 is unmatched.

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9. Grandstream WP826: Cordless Wi-Fi 6 Handset for Roaming Workers

Pros

• Wi-Fi 6 (802.11ax) for better range and throughput
• 4-inch color LCD touch screen
• Cordless design with long battery life
• Intuitive keypad and navigation

Cons

• Single-line only (one SIP account)
• No Ethernet port at all
• Heavier than a DECT cordless phone

Best for A warehouse, retail floor, or large open office where the user needs to move around while on calls.

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The WP826 is Grandstream’s first Wi-Fi 6 cordless phone. Instead of connecting to a base station, it connects directly to your Wi-Fi network, which means no extra hardware and no range limits imposed by a DECT base. Wi-Fi 6 brings better performance in crowded radio environments, so you can move between access points without dropping a call.

The 4-inch color LCD is bright and responsive. The handset is large enough to hold comfortably, though it is heavier than a typical DECT phone. Battery life is good for a full shift, but you will want to put it in the charger overnight. It supports a single SIP account, so it is not for multi-line use. The phonebook and call history are easy to navigate.

There is no Ethernet port, so this phone is purely wireless. If you need a desk phone with a cordless option, look at the GRP series with a Bluetooth headset. But if you need a true roaming phone for a floor walker or a technician, the WP826 with Wi-Fi 6 is the most future-proof choice.

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10. Grandstream GXV3370: Video Phone with Android and a 7-Inch Touch Screen

Pros

• 7-inch color touch screen with HD video camera
• 16 lines, 16 SIP accounts
• Android 7.0 with SDK for custom apps
• Gigabit Ethernet with PoE+ and built-in Wi-Fi and Bluetooth

Cons

• Runs on Android 7.0 (not the latest version)
• Expensive relative to voice-only phones
• Camera quality is adequate, not excellent

Best for An executive or manager who wants a unified desktop device for video calls, corporate directories, and custom business apps.

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The GXV3370 is in a different category from everything else on this list. It is a video phone that runs Android 7.0 on a 7-inch touch screen. That means it can run third-party apps: a company directory, a CRM client, a custom dashboard. The camera is an advanced megapixel unit that handles HD video conferencing without needing a separate webcam.

Sixteen SIP accounts and sixteen lines mean you can register multiple services and manage them all from one screen. The phone includes built-in Wi-Fi (802.11n) and Bluetooth for headsets and file transfers. Dual Gigabit ports with PoE+ keep power and data simple. The display is crisp and the touch response is good for a business device.

The Android version is 7.0, which is several major releases behind, so some modern apps may not install or may run slowly. The camera is fine for desk-to-desk video but not studio quality. For an office where a dedicated video conferencing device is overkill and a laptop isn't always open, the GXV3370 is a compelling all-in-one. It is the best Grandstream product for video.

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Buyer's guide: how to choose a Grandstream VoIP device

The Grandstream catalog spans simple adapters that plug into your router all the way to Android video phones. The right choice depends on your office size, network setup, and how many phone lines you need.

Line and account capacity

Every Grandstream product lists how many lines and SIP accounts it supports. A line is a call appearance on the phone; an account is a registration with a VoIP provider. For a single user, two lines and two accounts are enough. For a receptionist managing four trunks and monitoring extensions, look for at least eight lines and four accounts, plus BLF keys to see who is on a call. The GXP2170 handles twelve lines and six accounts; the GXV3370 handles sixteen of each. Buy for the number of lines you plan to use in the next two years, not just today.

Network ports and PoE

Most Grandstream desk phones include two Ethernet ports: one to connect to the network, one to pass through to a computer. Ports can be 10/100 (Fast Ethernet) or 10/100/1000 (Gigabit). If you connect a laptop or desktop through the phone, Gigabit prevents speed bottlenecks. PoE (Power over Ethernet) lets the phone draw power from the network cable, eliminating the need for a power adapter on the desk. All the phones on this list except the WP826 have PoE (the GXV3370 uses PoE+ for its larger screen and camera).

Wi-Fi and cordless options

If running Ethernet to every desk is impractical, a phone with built-in Wi-Fi saves a cable run. The GRP2612W has Wi-Fi 5; the WP826 has Wi-Fi 6 and is fully cordless. Wi-Fi is fine for voice, but be aware that wireless connections can introduce latency or jitter if your access points are overloaded. For mission-critical call centers, wired is always more reliable.

Display size and BLF keys

A small 2.4-inch display shows caller ID and a few on-screen keys. A 4.3-inch color screen like the GXP2170 can display 48 BLF keys, letting you see who is on a call across the entire office. If your job is to redirect calls and monitor extensions, invest in a phone with a larger display and hardware expansion modules.

Security and provisioning

All Grandstream products support TLS and SRTP for encrypted calls and registration. For larger deployments, look for automated provisioning via TR-069 or XML config files. The GRP series adds secure boot and dual firmware images, which matter if you are deploying phones across a company and need to ensure they are not tampered with.

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Frequently asked questions

What is the difference between Grandstream GXP and GRP series?

The GXP series is Grandstream's traditional business phone line, offering color displays, BLF keys, and Gigabit Ethernet on mid-to-high-end models. The GRP series is designed for service providers and large enterprises, with carrier-grade features like secure boot, encrypted storage, swappable faceplates, and Wi-Fi options. GRP phones also support the Opus audio codec and are tested for interoperability with major hosted PBX platforms.

Can I use a Grandstream ATA with any VoIP provider?

Yes. Grandstream ATAs (HT series) are SIP-based and work with any provider that supports standard SIP registration. You configure the server address, credentials, and codec preferences through the web interface. Some providers even publish ready-made configuration profiles for Grandstream ATAs.

Does the GRP2612W Wi-Fi work while the Ethernet cable is plugged in?

No. The GRP2612W requires the Ethernet cable to be disconnected to enable Wi-Fi. This is by design: the phone prioritizes wired connectivity when available. Once you unplug the cable and set up the Wi-Fi connection in the phone’s menu, it will operate wirelessly until you plug Ethernet back in.

How many expansion modules can I attach to the GXP2170?

The GXP2170 supports up to four GXP2200EXT expansion modules. Each module adds 40 (or 48, depending on the firmware) physical BLF keys with presence LEDs, bringing the total to up to 208 keys when combined with the on-screen keys. This makes it one of the most expandable desk phones on the market.

What is the advantage of Wi-Fi 6 on the WP826 over older Wi-Fi standards?

Wi-Fi 6 (802.11ax) offers better performance in environments with many wireless devices, lower latency for real-time applications like voice, and improved battery efficiency for handheld devices. If your office uses Wi-Fi for many laptops and phones, the WP826 is less likely to suffer from dropped calls or audio glitches compared to a Wi-Fi 5 phone.

Do Grandstream phones support Bluetooth headsets?

Some models do, notably the GXP2135 and the GXV3370. The GXP2170 and the GRP series do not have built-in Bluetooth. For Bluetooth on a GRP phone, you need the GRP2613W (not covered here) or use a USB Bluetooth adapter that is compatible with the phone's USB port.

Can I use a Grandstream phone without a PBX?

Each Grandstream phone can register directly to an ITSP (Internet Telephony Service Provider) without an on-premises PBX, as long as the provider allows direct SIP registration. However, many advanced features like BLF monitoring, paging, and intercom require a PBX. Grandstream’s own UCM series PBXs integrate seamlessly with their phones.

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Final verdict

If all you need is an analog-to-VoIP bridge, the Grandstream HT802 V2 is the most reliable two-port ATA with strong security. For a single analog line, the HT801 v2 saves space and cost. On the desk phone side, the GRP2612W is the best wireless choice for offices without Ethernet at every desk, while the GXP2170 is the ultimate wired command center for power users who manage many lines and extensions. The WP826 serves roving workers, and the GXV3370 is a complete video communication hub for an executive desk. Every Grandstream product here is built to the same standard: solid SIP implementation, reliable audio, and flexible deployment tools. Pick the one that matches your line count and network setup, and you will have a phone system that stays out of your way.

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