No. In fact, if you have two phone lines that share the same physical copper wire, referred to as Added Main Line (AML), your telephone line will not be compatible with the High Speed ADSL service.

The High Speed ADSL service uses a 1-Meg Modem; this allows simultaneous transmission of voice and data over one phone line. You can surf the Internet and talk on the phone, or surf the Intenet and send/receive faxes at the same time.

If you already have a second telephone line installed in your home that is compatible with the High Speed ADSL service, you do not need to cancel the service on your second phone line if you do not wish to do so.