The Zultys ZIP 47GE sits one rung below the 49GA — same 27 programmable keys, but a 4.3-inch color LCD instead of a 7-inch touch screen, and no Android or video option. It's the phone you buy for executives and power users who answer calls all day but don't need to swipe through apps. Dual Gigabit Ethernet means you can daisy-chain a PC behind the phone without losing speed, and the dedicated headset port with EHS support handles wired and wireless headsets cleanly. Full-duplex HD voice and acoustic echo cancellation are noticeable on speakerphone — it doesn't sound tinny like the entry-level models. Built-in Bluetooth, Wi-Fi, and USB cover headset and accessory needs without extra dongles. The thing buyers regret: the 4.3-inch screen is fine, but if you actually wanted to tap things instead of pressing buttons, you should have spent the extra and gotten the 49GA. Conversely, if you don't need 27 keys or HD audio, the Z 23GE saves real money. Designed for the Zultys MX system and ZAC UC app — don't try to retrofit it onto a different SIP platform.