The GRP2670 is the top of Grandstream's carrier-grade GRP Professional series. 16 SIP accounts, 48 virtual multi-purpose keys, and a large 7-inch colour touchscreen. It is Grandstream's answer to the Yealink T46U and T54W for power users and high-call-volume desks, and the correct flagship choice for new Grandstream deployments.
By the Need to Know Comms Team · Last updated 4 September 2026
81/100
NTK ScoreRecommended
Relevance18/20
A mature open-SIP flagship directly serves busy reception and executive desks, although its high-end capacity is excessive for many microbusiness users.
Effort15/20
GDMS and provider auto-provisioning simplify rollout, while third-party purchases and cross-vendor migrations can still require manual configuration and administrator expertise.
Adoption13/20
The touchscreen and dedicated call keys should feel familiar, but exact-model independent usability evidence is thin and advanced features need orientation.
Commercial value16/20
Transparent Australian street pricing and broad retail stock aid procurement; fleet management supports scale, though quantified payback and volume pricing remain unproven.
Trust19/20
Current firmware, documented security controls, open SIP and Australian channels are strong; product-family feedback is mixed, while certified-channel warranty restrictions require attention.
What to know before buying
Authorised-channel SMB buyers: Recommended. Marketplace buyers requiring dependable manufacturer warranty: do not buy through Amazon/eBay; use a certified Australian reseller. Businesses with contractual support requirements: confirm the reseller's SLA before deployment.
Warranty pathway
Grandstream's manufacturer warranty is provided through certified partners, and its marketplace policy says GRP26XX products obtained through Amazon, eBay or similar prohibited marketplaces may not receive manufacturer warranty or licence coverage.
A buyer following a marketplace link could discover after a hardware failure that the seller, rather than Grandstream, is the only practical warranty pathway.
Matters most to: SMBs buying from Amazon, eBay or an unverified marketplace seller, especially those needing predictable replacement coverage. · Buy through a Grandstream-certified Australian partner or reseller and obtain written confirmation of the end-user warranty term before ordering.
Local support accessibility
Grandstream provides global helpdesk ticketing, while telephone assistance is primarily routed through certified installers and resellers. Australian providers such as MaxoTel offer local phone and ticket support, but support conditions depend on the chosen seller or service provider.
Businesses needing urgent voice escalation may receive materially different service depending on whether they bought the phone through their managed provider or as standalone hardware.
Matters most to: Businesses requiring phone-based escalation, guaranteed response times or a single accountable supplier for handset and PBX faults. · Procure through an Australian provider that documents support hours, escalation channels, replacement handling and response targets.
Common use cases: The GRP2670 is a voice IP phone with a large colour touchscreen and five-way voice conferencing. It suits senior roles in professional services environments where client-facing calls justify premium hardware -- law firm partners and senior agents in real estate agencies are the most common deployments. It does not support video calling -- Grandstream specifies it as an audio conferencing phone with no camera, so practices needing SIP video for client consultations should look elsewhere.
Who is this phone for?
The GRP2670 is Grandstream's flagship desk phone for high-call-volume and high-visibility environments. With 48 virtual multi-purpose keys (VPKs) (matching the GXP2170's 48 and ahead of the Yealink T46U's 27), a large 7-inch colour touchscreen, and 16 SIP accounts, it is built for receptionists, team leads, and power users in Grandstream deployments who need strong call visibility at a glance.
Buy it for: reception desks in Grandstream deployments, team leads managing large groups, and any desk where BLF/VPK monitoring of 10+ extensions is a daily requirement. Also the correct flagship choice when starting a new all-Grandstream deployment and you want the current GRP carrier-grade platform rather than the legacy GXP series.
Compared to the GXP2170: the GRP2670 is newer, matches it on VPK count (48 each), and uses the current GRP carrier-grade platform with GDMS provisioning and a touchscreen instead of physical BLF columns. The GXP2170 remains listed and supported by Grandstream. For new deployments: GRP2670. For extending an existing GXP estate: GXP2170.
Compared to the Yealink T46U/T54W: all three cover similar executive/power-user territory. Choose on brand preference and platform consistency -- they perform equivalently for SIP call handling.
Specs at a glance
SIP accounts
16
Screen
7" 1024x600 capacitive colour TFT touchscreen
BLF programmable keys
48 virtual multi-purpose keys (VPKs)
PoE
Yes (802.3af)
Wi-Fi / Bluetooth
Yes, integrated dual-band Wi-Fi and integrated Bluetooth; hardware version 5.0+ supports Wi-Fi 6
USB port
1 x USB-A
Headset port
RJ9 (analogue)
Gigabit
Yes (dual Gigabit ports)
Codecs
G.711a/u, G.722 (HD), G.726, G.729a/b, iLBC, OPUS
SRTP / TLS
Yes
Provisioning
GDMS, TR-069, HTTPS
Build quality and design
The GRP2670 is a large, wide phone designed around its 48-VPK touchscreen layout. The GRP2670 uses a 7-inch capacitive touchscreen with virtual multi-purpose keys rather than physical BLF columns. The design is clean and functional -- the GRP series has a more modern aesthetic than the GXP series, which was designed a decade earlier.
The GRP2670 has a 7-inch 1024x600 touchscreen, larger than the 4.3-inch 480x272 displays on the Yealink T46U and T54W. Caller ID, line status, and BLF indicators are clearly visible. Grandstream's default BLF indicators use solid green for idle, flashing red for ringing, and solid red during a call. The build feels solid and professional -- appropriate for executive or reception desks.
Call quality on Australian NBN
The GRP2670 supports G.722 HD audio and OPUS. Call quality depends on the NBN connection, network configuration and SIP provider. QoS and SIP ALG settings depend on the router, network conditions and SIP provider; follow the provider's configuration guidance.
For Grandstream UCM deployments, the GRP2670 supports UCM Zero-Config provisioning; GDMS is a separate cloud provisioning and management platform.
For cloud SIP provider deployments (Maxotel and equivalent), the GRP2670 provisions via standard SIP credentials exactly like any other phone. GDMS provisioning is also supported by managed providers that carry Grandstream configuration templates.
Features
48 virtual multi-purpose keys (VPKs) -- matching the GXP2170 and ahead of the Yealink T46U's 27. Touchscreen-based rather than physical keys; the GRP2670 supports GBX20 expansion modules when additional contacts or extensions are required.
GDMS zero-touch provisioning -- Grandstream's cloud management portal allows mass deployment and configuration from a single interface. Useful for IT teams managing Grandstream phones across multiple sites.
Large 7" colour touchscreen -- larger than the 4.3" displays on the Yealink T46U/T54W. Caller ID and BLF status are clear from across a desk.
GRP Security Suite -- SRTP, TLS, 256-bit AES encryption, secure boot, and Grandstream's carrier-grade security stack. All included as standard.
1 USB-A port -- supports USB headsets and recording devices. One port vs the Yealink T46U's two -- a minor limitation for desks using both simultaneously.
What works / What doesn't
Pros
48 virtual multi-purpose keys (VPKs) -- matching the GXP2170 and ahead of the Yealink T46U's 27, ideal for large reception or team lead desks
Current GRP carrier-grade platform -- preferred over legacy GXP for new deployments
GDMS zero-touch provisioning -- best-in-class for large Grandstream deployments
Full carrier-grade security suite included as standard
Cons
Wired PoE is the typical deployment despite built-in Wi-Fi/Bluetooth
1 USB port vs Yealink T46U's 2 -- minor for multi-device desks
GRP2670 AU retailer availability is narrower than GXP2170 -- check stock before ordering
Premium price vs GXP2170 which performs similarly for standard SIP use
Not available through Amazon AU -- Grandstream's marketplace policy prohibits GRP26XX sales through Amazon and its affiliates, and warns warranty/licence coverage may not be honoured for units bought there
Australian pricing and where to buy
The GRP2670 is stocked by UMart, Maxo Telecommunications, and select AU IT retailers. Pricing typically sits around $249-$299 AUD for a single unit. Prices on this page update weekly from StaticICE.
Do not buy the GRP2670 through Amazon AU -- Grandstream's marketplace policy explicitly prohibits GRP26XX series phones from sale on Amazon and its international affiliates, and warns that warranty or licence coverage may not be honoured for units purchased there. For multi-unit deployments, contact Maxo Telecommunications to ask whether volume pricing is available.
The Grandstream GRP2670 is also available from Digiphone, an Australian specialist in business VoIP hardware.
Deploying GRP2670 phones as part of a Grandstream system? Get a provider recommendation.
The GRP2670 is the right flagship Grandstream phone for 2026 AU deployments. 48 virtual multi-purpose keys, a large colour screen, and the current GRP carrier-grade platform make it the natural choice for high-visibility desks in Grandstream environments.
For new Grandstream deployments: choose the GRP2670 over the GXP2170. The platform is current and GDMS provisioning is more capable, even though VPK capacity is now the same.
For Yealink comparisons at this tier: the GRP2670 and Yealink T46U are near-equivalent for cabled SIP deployments. The T46U has 2 USB ports vs the GRP2670's 1, and wider AU retailer availability. The GRP2670 has more VPKs than the T46U. Choose on brand preference and what platform your other phones run on.
Frequently asked questions
The GRP2670 is the flagship of the Grandstream GRP range. Our best SIP desk phone Australia roundup positions the GRP2670 in the executive tier alongside the GXP2170 and Yealink T54W, with a feature comparison and price-performance assessment for each.
Sixteen SIP accounts, HD audio, and Bluetooth make the GRP2670 a match for executive roles on a feature-rich PBX. Our guide to the best VOIP phone system for small business in Australia covers which Australian cloud PBX platforms support the GRP2670 expansion module and advanced call routing features.
New to IP phones or setting up a Grandstream GRP2670 for the first time? Our new IP phone setup guide covers VOIP provider selection, SIP credential entry, Ethernet connection, auto-provisioning, and troubleshooting the "Not Registered" display -- everything you need before making your first call.
GRP2670 vs GXP2170 -- which Grandstream flagship should I buy?
For new deployments in 2026, the GRP2670 is the recommended choice. It is the current carrier-grade platform with GDMS zero-touch provisioning; VPK capacity is now the same as the GXP2170 (48 each). The GXP2170 is legacy but still widely available and well-supported. Buy the GRP2670 for new deployments; buy the GXP2170 if you are extending an existing GXP estate or it is available at a lower price.
How many BLF keys does the Grandstream GRP2670 have?
Current Grandstream documentation specifies 48 virtual multi-purpose keys (VPKs). This is more than the Yealink T46U (27 keys) and the Grandstream GXP2170 (48 keys), making the GRP2670 the best choice for reception desks that need to monitor 30 or more extensions.
Is the GRP2670 compatible with Maxotel and AU SIP providers?
The GRP2670 uses standards-based SIP, but compatibility, provisioning and feature support vary by provider; MaxoTel supports GRP-series phones subject to its provisioning conditions. MaxoTel documents automatic provisioning for Grandstream GRP-series phones purchased from MaxoTel; third-party-purchased handsets may require manual configuration. Standard SIP credentials (server, username, password) are also supported for manual provisioning.
Does the GRP2670 work on NBN in Australia?
The GRP2670 operates as an IP/SIP endpoint; confirm router and SIP-provider compatibility, and adjust QoS or SIP ALG only where the provider or network conditions require it. G.722 and OPUS codecs are supported for best NBN call quality.
GRP2670 or Yealink T46U -- which should I buy?
Both are high-end desk phones for power users and team leads. The GRP2670 has more VPKs (48 vs 27). The T46U has two USB ports vs one, and wider AU retailer availability. For Grandstream deployments: GRP2670. For Yealink deployments or fresh starts: T46U. Both support standard SIP call handling.
Not sure whether the GRP2670 or another model fits your deployment?