“Before Conference pears, we could only talk to one pear at a time”

A joke about Conference pears was posted on Twitter by “joe” on March 26, 2013:
   
“Before we had conference pears, you could only talk to one person on a pear at a time.”
 
“Joe” made a slightly different tweet on February 15, 2016:
   
“Before conference pears we could only talk to one pear at a time.”
 
“Just saw loads of pears at a meeting. They must be Conference pears” is another joke about Conference pears.
   
   
Wikipedia: Conference pear
A Conference pear is a variety of pear.
 
It is an autumn cultivar (cultivated variety) of the European pear (Pyrus communis). This variety of pear was developed in Britain by Thomas Rivers. It owes its name to the fact that it won first prize at the National British Pear Conference in London in 1885.
 
Wikipedia: Conference call
A conference call is a telephone call in which someone talks to several people at the same time. The conference calls may be designed to allow the called party to participate during the call, or the call may be set up so that the called party merely listens into the call and cannot speak. It is sometimes called ATC (audio tele-conference).
 
Twitter
joe
‏@mutablejoe
Before we had conference pears, you could only talk to one person on a pear at a time.
2:25 AM - 26 Mar 2013
 
Twitter
Liz Hedgecock
‏@lizhedgecock
RT @kerihw: Before we had conference pears, you could only talk to one person on a pear at a time.
2:38 AM - 26 Mar 2013
 
Twitter
John Baylon
‏@john__baylon
Before we had conference pears,  you could only talk to one person on a pear at a time.
10:52 AM - 26 Mar 2013
 
Twitter
joe
‏@mutablejoe
Before conference pears we could only talk to one pear at a time.
8:34 AM - 15 Feb 2016
 
Twitter
Christopher Cole
‏@Christo11264837
Before conference pears we could only talk to pears one at a time
11:52 AM - 15 Feb 2016
 
Twitter
Kat Bunting
‏@TheKatfinkk
Before conference pears, did you have to talk to all of your pears individually? #keepsmeawakeatnight
12:33 PM - 18 Feb 2016