Listening to cheesy music, maybe

• Waiting for a real person, maybe
• Waiting for a party, perhaps
• Suspended, in a way
• Listening to music, perhaps
• Waiting to talk on the phone
• Waiting for customer support, often
• Having to wait
• Shelved for now

Wiktionary Word definitions in Wiktionary
vb. 1 (context transitive rare English) To hold on (to). 2 (context intransitive rare English) To hold on.