There may be several reasons why no one answers the manual call:

  1. The answering person is not available: It may be outside working hours, or the answering person is handling other calls and cannot answer immediately.
  2. Telephone line problem: The telephone line is faulty, making it impossible to connect.
  3. Information verification is required: Some services may require verification of customer information. If the information does not meet the requirements, you may be refused to answer the call.
  4. Busy service: If there are too many people calling for consultation, the human service staff may be overwhelmed.
  5. Misdial or wrong number: It may be that the phone number was entered incorrectly or the wrong number was dialed.

Please confirm the above situation and take appropriate measures based on the actual situation.