Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
In such a situation my experience suggests:
1. consider what other devices are also on the same phone line. (How many, and which devices?)
2. examine whether the phone line cord, from your phone service or jack, goes to the correct jack of two on the phone itself. Plugged into the wrong one of those two, it may not work right. (On Canon products the line from the phone jack must go to the 'L' or 'Line' jack, not the 'P' or 'Phone' jack, which is for a voice phone handset or an answering machine etc.)
3. the last possible cause is, that your new phone is in fact defective. In which case, return it promptly with the sales receipt in hand, for an exchange for another of the same or similar type/value, before the return/exchange period runs out (which it can do as soon as 7 days after purchase.)
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