The Digipod is an area outside of reality that exists parallel to the main timeline. Its initial incarnation was created by Willem as a means for members of Belfield FM to commune over great distances.
The original Digipod was highly unstable due to the presence of powerful beings such as Robert Palminteri. This caused the Digipod to 'shoot hoops' meaning that gateways into it would be effected by heavy psychic interference, making them open and close repeatedly as if someone was attempting to communicate.
The most recent manifestation of the Digipod is far more stable, allowing scores of members to communicate at once. The use of this tool became vital in bolstering Matthew's reputation before he was able to succeed Aisling as station manager.