Symbol 5252 from IEC 60417 - Title/Meaning: Parked call; held call Function/description: To identify the control causing a call to be set aside for a limited period.
Additional information: 
Title was editorially improved
Published in: Supplement L, 1993
Own work using: iso.org/obp/graphics/grs/0a54a90a-859b-4e4d-b462-dce679804333 200.png
Vectorization:  Mrmw