Communication apparatus and storage medium storing program

A non-transitory computer-readable storage medium storing a set of program instructions for a communication apparatus comprising a first communication interface, a second communication interface, and a controller, the set of program instructions, when executed by the controller, causing the communication apparatus to:

• acquire communication destination information, the communication destination information including at least a first external apparatus connected via the first communication interface or a second external apparatus connected via the second communication interface;
• perform initialization of the first communication interface and the second communication interface, the initialization including:
• in response to determining that an external apparatus indicated by the communication destination information is the first external apparatus, after completing initialization of the first communication interface, shifting to a communication waiting state in which transmission and reception of data is acceptable;
• and
• in response to determining that the external apparatus indicated by the communication destination information is the second external apparatus, shifting to the communication waiting state after completing initialization of the second communication interface;
• and
• perform communication with at least the first external apparatus or the second external apparatus, the communication including transmission and reception of the data.