Cisco IP Phone model CP-8851 - barely used - comes with power supply - color charcoal
$236 new on amazon - link below
https://www.amazon.com/Cisco-Phone-8851-Multiplatform-Firmware/dp/B01I9U9YJU/ref=sr_1_3?crid=TMJGVWN0AK56&keywords=cisco+cp8851&qid=1642876793&sprefix=cisco+cp8851%2Caps%2C95&sr=8-3