Yealink SIP-T33G is an entry-level  IP phone that supports up to 4 SIP accounts, and it includes local 5-way conferencing. It also has a large screen with backlight.
 
Key Features:
Yealink HD Voice
2.4” 320 x 240-pixel color display with backlight
Dual-port Gigabit Ethernet
PoE support
Opus codec support
Up to 4 SIP accounts
Local 5-way conferencing
Support EHS Wireless Headset
Unified Firmware
Support YDMP/YMCS
Stand with 2 adjustable angles
Wall mountable
 
Datasheet