AT&T MERLIN LEGEND Installation & Maintenance Manual page 604

Adjuncts
Music-on-Hold, Magic on Hold
Connected to an LS CO line/trunk port programmed for Music-
on-Hold (MOH) (see Appendix A). The system supports one
MOH connection, either Magic on Hold or a customer-owned
music source. The external music coupler (PEC 61398) uses an
8-ohm music source and two attenuation controls for setting the
MOH music level.
Notes:
Since most equipment works with an LS port, programming
the port for LS is recommended.
PagePac 20 equipment can be used with a loudspeaker
system to provide music, MOH, and paging without a
music coupler.
If you use equipment that rebroadcasts music or other
copyrighted materials, you may be required to obtain a
copyright license from and pay license fees to a third party
such as the American Society of Composers, Artists, and
Producers (ASCAP) or Broadcast Music Incorporated (BMI).
Or you can purchase a Magic on Hold system, which does
not require that you obtain such a license, from AT&T or an
authorized representative.
Supplemental Alerts
Connected to the system through a single-line telephone jack, an
MFM port on an MLX telephone, or an SAA on an analog
multiline telephone. The MFM and SAA support devices
operating on 48 VDC. Alerts operating on 20-30 Hz can be
connected to either an MFM or a single-line telephone jack.
Compatible alerts include horns and bells to audibly alert
workers, and strobes for use in quiet zones (hospitals and
libraries) and noisy areas (factories) and for the hearing-
impaired.
Adjuncts B-17