Speaker phone phone speaker into mic

it's a recording of a phone call. My friend had to put away his phone but he didn't disconnect the call so I turned on the loud speaker on my phone and placed the recorder next to it. You can hear distorted conversations and noises form the reception desk at the Grand Theater in Poznan. There is speaker installed in the reception room and a microphone on the other side of a glass window. It's used to talk to the receptionist and it picks up all the sounds from the staircase, back entrance. You can hear sounds from this speaker as well. You will also notice the whole recording is choppy due to nosie gate effect commonly used by cell phone operators in order to remove background noise from the person who isn't talking. (sony d50)