Go back to 646-229 - IPCAAM - IP Communications Advanced Account Manager Exam

Question :-

To find out if the customer is experiencing problems with its IP-enabled PBX because of an overtaxed TDM bus, which question is the best to ask?
Are you experiencing a delay in receiving a dial tone or is there no dial tone at all?
Is the sound quality of your calls becoming increasingly worse?
Are you unable to make long-distance calls at certain times of the day?
Are you experiencing any echoing noise during calls?

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