Receiving an output message

You can use the Cancel and Attn keys to interrupt output messages destined for SLU-1 devices.

IMS sends all output messages for a SLU-1 device in their entirety unless you interrupt them at the device using the Cancel and Attn keys as follows:

  • The Cancel key stops the current message, which IMS then discards. If another output message is presently enqueued, IMS sends it.
  • The Attn key causes IMS to finish sending the current message. When the message completes, you can enter an input message.
  • The Attn key followed by the Cancel key stops the current message, which IMS then discards. When the message is stopped, you can enter an input message.