Grandstream GRP2670 Review — Australia 2026

Who is this phone for?

The GRP2670 is Grandstream's flagship desk phone for high-call-volume and high-visibility environments. With 56 programmable BLF keys (more than the GXP2170's 48 and the Yealink T46U's 27), a large 4.3-inch colour screen, and 12 SIP accounts, it is built for receptionists, team leads, and power users in Grandstream deployments who need maximum call visibility at a glance. Buy it for: reception desks in Grandstream deployments, team leads managing large groups, and any desk where BLF 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, has more BLF keys (56 vs 48), and uses the current GRP carrier-grade platform with GDMS provisioning. The GXP2170 is legacy but still widely available in AU. 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

Build quality and design

The GRP2670 is a large, wide phone designed around its 56 BLF key layout. Four columns of 14 keys flank the 4.3-inch colour display. 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 4.3-inch colour screen matches the size of the Yealink T46U and T54W. Caller ID, line status, and BLF indicators are clearly visible. LED indicators on the BLF keys use colour coding (green/red/orange) for available/busy/ringing states. 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. On a well-configured NBN connection, call quality is excellent and indistinguishable from a Yealink T46U or T54W in the same environment. The standard AU SIP deployment rules apply: QoS on your router, SIP ALG disabled, and a SIP provider with AU-based infrastructure. For Grandstream UCM deployments (common in larger AU SMB and mid-market), the GRP2670 integrates natively with the UCM6xxx series with enhanced feature support including zero-touch GDMS provisioning, integrated BLF, and one-click call transfer from the BLF keys. 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

• 56 programmable BLF keys -- the most of any phone in this review set. Four pages of 14 keys. For reception desks monitoring 30-50 extensions, this covers large deployments without needing an expansion module.
• GDMS zero-touch provisioning -- Grandstream's cloud management portal allows mass deployment and configuration from a single interface. Preferred for IT teams managing 20+ Grandstream phones across multiple sites.
• Large 4.3" colour screen -- matches the display size of 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

Australian pricing and where to buy

The GRP2670 is stocked by UMart, Maxo Telecommunications, and select AU IT retailers. AU retailer availability is narrower than the GXP2170. Pricing typically sits around $249-$299 AUD for a single unit. Prices on this page are updated nightly from StaticICE. The GRP2670 is available on Amazon AU (ASIN B0BJKWNFN3), which is a reliable source for single-unit purchases. For multi-unit deployments, contact Maxo Telecommunications (AU Grandstream distributor) for volume pricing.

Verdict

The GRP2670 is the right flagship Grandstream phone for 2026 AU deployments. 56 BLF 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, the BLF capacity is higher, and GDMS provisioning is more capable. 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 BLF keys. Choose on brand preference and what platform your other phones run on.

Frequently asked questions

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 and more BLF keys (56 vs 48). 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?

56 programmable BLF/speed dial keys across 4 pages of 14 keys each. 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?

Yes. The GRP2670 works with all major AU SIP providers including Maxotel. GDMS provisioning is supported by Maxotel and other managed providers that carry Grandstream configuration templates. Standard SIP credentials (server, username, password) are also supported for manual provisioning.

Does the GRP2670 work on NBN in Australia?

Yes. It is a SIP phone compatible with all NBN connection types. Disable SIP ALG on your router, enable QoS for voice traffic, and register it with your SIP provider. 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 BLF keys (56 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 perform identically for standard SIP call handling.