Grandstream IP Phone Solutions | Interstate Telecommunications
Product Catalog · May 2026

Grandstream IP Phone Solutions

A complete guide to Grandstream's current IP voice telephony portfolio, including carrier-grade desktop phones, cordless solutions, hotel phones, and accessories. All models listed are currently available for order.

GRP Series — Professional IP Phones

Carrier-Grade

Grandstream's flagship desktop phone line, built for mass deployment with zero-touch provisioning, carrier-grade security (secure boot, dual firmware images, encrypted storage), and GDMS cloud management. All models support 5-way conferencing and HD audio with Noise Shield technology.

Model Lines / SIP Accounts Display Key Features MSRP
GRP2670 12 lines / 6 SIP 7" (1024x600) touchscreen 48 VPKs, GigE, EHS, USB Wi-Fi 6 BT PoE Touch $219.00
GRP2650 14 lines / 7 SIP 5" (480x320) color LCD 48 VPKs, GigE, EHS, USB Wi-Fi BT PoE $195.00
GRP2636 12 lines / 6 SIP 4.3" + 2.4" dual color LCD 48 VPKs, GigE, EHS, USB Wi-Fi BT PoE $175.00
GRP2634 8 lines / 12 SIP 2.8" (320x240) color LCD 32 VPKs, 10 MPKs, GigE, EHS, USB Wi-Fi BT PoE $129.00
GRP2624 8 lines / 12 SIP 2.8" (320x240) color LCD 24 VPKs, GigE, EHS, USB, GBX20 support Wi-Fi BT PoE $125.00
GRP2616 6 lines / 6 SIP 4.3" + 2.4" dual color LCD 48 MPKs, GigE, swappable faceplates Wi-Fi BT PoE $189.00
GRP2615 10 lines / 16 SIP 4.3" (480x272) color LCD 40 VPKs, GigE, GBX20 support Wi-Fi BT PoE $175.00
GRP2614 4 lines / 12 SIP 2.8" + 2.4" dual color LCD 40 VPKs, GigE, swappable faceplates Wi-Fi BT PoE $175.00
GRP2613 6 lines / 4 SIP 2.8" (320x240) color LCD 24 VPKs, GigE, swappable faceplates PoE $90.00
GRP2613W 6 lines / 4 SIP 2.8" (320x240) color LCD 24 VPKs, GigE, swappable faceplates Wi-Fi PoE $99.00
GRP2612 4 lines / 4 SIP 2.4" (320x240) color LCD 16 VPKs, dual 10/100, swappable faceplates $69.00
GRP2612P 4 lines / 4 SIP 2.4" (320x240) color LCD 16 VPKs, dual 10/100 PoE $69.00
GRP2612W 4 lines / 4 SIP 2.4" (320x240) color LCD 16 VPKs, dual 10/100 Wi-Fi PoE $79.00
GRP2612G 4 lines / 4 SIP 2.4" (320x240) color LCD 16 VPKs, GigE PoE $79.00
GRP2611G 3 lines / 3 SIP 2.8" (320x240) color LCD 16 VPKs, GigE, swappable faceplates PoE $59.00
GRP2610 2 lines / 2 SIP 2.4" (320x240) color LCD 16 VPKs, dual 10/100, swappable faceplates $49.00
GRP2610P 2 lines / 2 SIP 2.4" (320x240) color LCD 16 VPKs, dual 10/100 PoE $49.00

All GRP Professional models support GDMS cloud management, secure boot, and encrypted data storage. Models with Wi-Fi support dual-band 2.4/5 GHz (Wi-Fi 6 on GRP2670 HW v5.0+).

GRP Series — Essential IP Phones

Carrier-Grade

Simple, affordable desktop phones with the same carrier-grade security and GDMS cloud management as the Professional line. Designed for high-volume deployments in offices, retail, schools, and service provider environments.

Model Lines / SIP Accounts Display Key Features MSRP
GRP2604 3 lines / 6 SIP 2.48" (132x64) backlit LCD GigE, EHS, paper BLF keys, swappable faceplate $69.00
GRP2604P 3 lines / 6 SIP 2.48" (132x64) backlit LCD GigE, EHS, paper BLF keys PoE $69.00
GRP2603 3 lines / 6 SIP 2.48" (132x64) backlit LCD GigE, EHS, swappable faceplate $69.00
GRP2603P 3 lines / 6 SIP 2.48" (132x64) backlit LCD GigE, EHS PoE $69.00
GRP2602 2 lines / 4 SIP 2.21" (132x48) LCD Dual 10/100, EHS, HD audio $45.00
GRP2602P 2 lines / 4 SIP 2.21" (132x48) LCD Dual 10/100, EHS PoE $45.00
GRP2602W 2 lines / 4 SIP 2.21" (132x48) backlit LCD Dual 10/100, EHS Wi-Fi 6 PoE $55.00
GRP2602G 2 lines / 4 SIP 2.21" (132x48) backlit LCD GigE, EHS PoE $49.00
GRP2601 2 lines / 2 SIP 2.21" (132x48) LCD Dual 10/100, EHS, HD audio $39.00
GRP2601P 2 lines / 2 SIP 2.21" (132x48) LCD Dual 10/100, EHS PoE $39.00
GRP2601W 2 lines / 2 SIP 2.21" (132x48) LCD Dual 10/100, EHS Wi-Fi 6 $45.00

All GRP Essential models support 5-way conferencing, GDMS cloud management, and EHS for Plantronics, Jabra, and Sennheiser headsets.

GXP Series — High-End IP Phones

Business

Feature-rich enterprise phones with color displays, Bluetooth, and Gigabit Ethernet. Ideal for users who need advanced features, multiple line support, and extensive BLF/speed-dial capability.

Model Lines / SIP Accounts Display Key Features MSRP
GXP2170 12 lines / 6 SIP 4.3" (480x272) color LCD 48 on-screen BLF keys, GigE, USB, EHS BT PoE $149.00
GXP2160 6 lines / 6 SIP 4.3" (480x272) color LCD 24 BLF keys, GigE, USB, EHS BT PoE $159.00
GXP2140 4 lines / 4 SIP 4.3" (480x272) color LCD 5 soft keys, GigE, USB, EHS BT PoE $129.00
GXP2135 8 lines / 4 SIP 2.8" (320x240) color LCD 32 BLF keys, GigE, USB, EHS BT PoE $109.00
GXP2130 3 lines / 3 SIP 2.8" (320x240) color LCD 8 BLF keys, GigE, EHS BT PoE $99.00

GXP Series — Mid-Range & Basic IP Phones

Business

Cost-effective phones for general office, common-area, and lobby deployments. Reliable SIP devices with essential telephony features.

Model Lines / SIP Accounts Display Key Features MSRP
GXP1782 (Mid-Range) 4 lines / 4 SIP 3.3" (200x80) backlit LCD 8 BLF keys, GigE, 5-way conference PoE $89.00
GXP1630 3 lines / 3 SIP 2.98" (132x64) backlit LCD 8 BLF keys, GigE, 3-way conference PoE $43.00
GXP1628 2 lines / 2 SIP 2.41" (132x48) backlit LCD 8 BLF keys, GigE, 3-way conference PoE $40.80
GXP1625 2 lines / 2 SIP 2.41" (132x48) backlit LCD Dual 10/100, 3-way conference PoE $48.00
GXP1620 2 lines / 2 SIP 2.41" (132x48) backlit LCD Dual 10/100, 3-way conference $30.00
GXP1615 1 line / 1 SIP 2.41" (132x48) backlit LCD Dual 10/100, 3-way conference PoE $43.00
GXP1610 1 line / 1 SIP 2.41" (132x48) LCD Dual 10/100, 3-way conference $35.00

DECT Cordless IP Phones

Wireless

DECT-based wireless VoIP for warehouses, retail, offices, and residential environments. Base stations support up to 10 handsets with coverage extension via repeaters. Ideal for users who need mobility without relying on Wi-Fi.

Model Type Display Key Features MSRP
DP755 Base Station N/A Up to 10 handsets, 10 SIP, long range, PoE, full-duplex speakerphone $55.00
DP752 Base Station N/A Up to 5 handsets, 10 SIP, long range, PoE $59.00
DP750 Base Station N/A Up to 5 handsets, 10 SIP, PoE $59.00
DP760 Repeater N/A Extends range for DP750/DP752/DP755 base stations $129.00
DP730 Handset 2.4" (240x320) color LCD HD audio, 3.5mm headset jack, 40hr standby, push-to-talk $99.00
DP725 Handset 2" (128x160) color LCD HD audio, 3.5mm headset jack, push-to-talk, speakerphone $60.00
DP722 Handset 1.8" (128x160) color LCD HD audio, 3.5mm headset jack, speakerphone $62.00
DP720 Handset 1.8" (128x160) color LCD HD audio, 3.5mm headset jack, speakerphone $62.00

Wi-Fi Cordless IP Phones

Wireless

Portable Wi-Fi IP phones that connect directly to your wireless network without needing a base station. Dual-band Wi-Fi with roaming support makes them ideal for retail, logistics, warehousing, healthcare, and hospitality environments.

Model Lines / SIP Display Key Features MSRP
WP856 16 lines / 16 SIP 5.5" HD touchscreen Android 13, barcode scanner, NFC, 20hr talk Wi-Fi 6 BT 5.2 Ruggedized $969.00
WP836 4 lines / 4 SIP 2.4" (320x240) color LCD AI noise reduction, PTT, 10hr talk Wi-Fi 6 BT $175.00
WP826 2 lines / 2 SIP 2.4" (320x240) color LCD AI noise reduction, PTT, 12hr talk Wi-Fi 6 $109.00
WP825 2 lines / 2 SIP 2.4" (320x240) color LCD Dual MIC, PTT, 8hr talk Wi-Fi ac Ruggedized $189.00
WP822 2 lines / 2 SIP 2.4" (320x240) color LCD Dual MIC, PTT, 8hr talk Wi-Fi ac $119.00
WP816 2 lines / 2 SIP 1.77" (128x160) color LCD AI noise reduction, accelerometer, 6hr talk Wi-Fi ac $75.00
WP810 2 lines / 2 SIP 1.8" (128x160) color LCD Dual MIC, 6hr talk, compact Wi-Fi ac $129.00

All WP models support Wi-Fi roaming (802.11r/k/v), GDMS cloud management, and are compatible with Grandstream GWN series access points.

GHP Series — Hotel Phones

Hospitality

Purpose-built IP phones for hotel rooms, apartments, dormitories, hospitals, and retail environments. Available in desktop and wall-mount configurations with programmable service keys.

Model Lines / SIP Display Key Features MSRP
GHP630 (Desktop) 2 lines / 2 SIP 2.8" color LCD 6 programmable keys, GigE, 3-way conference Wi-Fi PoE $65.00
GHP631 (Wall-Mount) 2 lines / 2 SIP 2.8" color LCD 6 programmable keys, GigE, 3-way conference Wi-Fi PoE $65.00
GHP620 (Desktop) 2 lines / 2 SIP 2.41" (132x48) LCD 6 programmable keys, 10/100, 3-way conference Wi-Fi PoE $42.00
GHP621 (Wall-Mount) 2 lines / 2 SIP 2.41" (132x48) LCD 6 programmable keys, 10/100, 3-way conference Wi-Fi PoE $42.00
GHP610 (Desktop) 2 lines / 2 SIP N/A (no display) 6 programmable keys, 10/100 PoE $39.00
GHP611 (Wall-Mount) 2 lines / 2 SIP N/A (no display) 6 programmable keys, 10/100 PoE $39.00

Extension Modules & Accessories

Add-Ons

Expand call handling capacity with extension modules that add BLF/speed-dial keys to compatible desktop phones. Essential for receptionists, call centers, and high-volume environments.

Model Compatible With Display Key Features MSRP
GBX20 GRP2615, GRP2624, GRP2650, GRP2670 4.3" (480x272) color LCD 40 contacts/module, up to 4 modules (160 contacts), color BLF status $159.00
GXP2200EXT GXP2170, GXP2140 4.3" (480x272) color LCD 40 multi-purpose keys, 20 keys per page (2 pages), dual-color LEDs $125.00

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