My friend and I went and visited a new bar in Chicago yesterday and I observed these phones at their bar and host stand. These are the Cisco open sourced small business telephones. These were originally co branded with Linksys.
These are bound to be replaced by the Cisco 8800 series third party multi platform IP Phones which support non Cisco call servers by Asterisk and other open sourced platform.
Personally I think the design on these sets have outlived their useful life as they are quite ugly and bulky in today’s color display world of IP telephony.
So I will say, this bar has the best burger in the city of Chicago, definitely try it out!