incoming call double record

[yhbilisim]

Hello there

What is the "b" mark on the arrow in the picture below?
There are two records in each incoming call.

 

[ad5ou]

Each call has 2 legs. "a" leg is the first side or "caller", and "b" is the second side or "callee".

Someone must have changed a setting on your server because by default, Fusion merges the information into a single entry.