Grandstream DP750The base that 5 cordless handsets share.

Why the DP750 is on the catalog.

The DP750 is the SIP endpoint in Grandstream's DECT cordless system. It registers up to 10 SIP accounts (so 10 simultaneous extensions across all paired handsets), pairs with up to 5 cordless handsets (DP720 / DP730), and connects to your network via wired ethernet — typically PoE-powered, sitting in a wiring closet or on a shelf.

Single-base coverage is roughly 50m indoor through typical office walls, 300m outdoor in clear conditions. For larger deployments, you can stand up multiple DP750 bases in a multi-base setup (managed centrally), and handsets roam between them as users move through the building. This is the right architecture for warehouses, retail floors, hospitality back-of-house, multi-story office buildings with weak signal between floors.

The math: a single DP750 + 3 DP720 handsets lands around $340 total ($129 base + 3 × $69 handsets), which is meaningfully cheaper than buying three separate desk phones plus Wi-Fi handsets. For 5+ cordless users in a single building, this is the economical choice.

Where to skip it: if you only need one cordless user (a single Wi-Fi handset like the WP822 may be cleaner), or if your office is so large that 5 handsets per base will not be enough and you need to stand up 3+ bases anyway — at that point, look at Grandstream's higher-capacity DP755 (which supports 10 handsets per base and is the better long-term choice for 15+ cordless deployments).