When you order an analog trunk, there are several recommendations depending on your system’s particular needs:

• For optimal functioning of the MM714B Emergency Transfer Relay feature, it is recommended to use a loop-start trunk.

• For access to voice mail systems in the United States, it is recommended to use a ground start trunk to ensure that calls are properly disconnected when the outside caller disconnects.

  Ground start trunks may be provided via the MM711, MM714B or MM714 media modules.

  If you use the MM714B with ground start, you must use a ground start button for ETR.

• Request conditioned lines to ensure satisfactory voice quality and trunking interactions.