The GBX20 is an Extension Module that adds functionality, versatility and flexibility to Grandstreams GRP2615 Carrier-Grade IP Phone and GXV3350 IP Video Phone. It features a 272×480 LCD display that offers up to 40 contacts per module with support for up to 160 contacts by using 4 modules. The GBX20 supports a wide-range of advanced call features including BLF, call park / pick-up, speed-dial, presence, intercom, voice conferencing transfer/forward and much more. An ideal solution for businesses and receptionists managing high call volumes, the GBX20 ensures maximum productivity by efficiently monitoring and dispatching incoming calls.
Sale!
Grandstream GBX20 – Key expansion module for VoIP phone
Original price was: $168.94.$146.90Current price is: $146.90.
Buy More and Save with Volume Discount:
| Quantity | 2 + | 5 + | 10 + |
|---|---|---|---|
| Price | $146.75 | $146.61 | $146.46 |
3 in stock
Delivery
2–3 business days
Free shipping
Estimated arrival
June 1 – June 3
- Orders placed by 2pm ship within 24–48 hours.
- Free shipping on orders $65 and over.
- Typical transit time: 2–3 business days.





