Nortel COMPANION C3050 REV2 User Manual page 37

Note for pacemaker
users
Note for hearing aid
users
34
Although the risk of interference is minimal, pacemaker
users should not store the C3050 portable in a pocket next
to the pacemaker.
Use of the portable telephone may produce an audible tone
within a hearing aid. The C3002 headset can be used with
hearing aids and will prevent the occurrence of the audible
tone.