# Placing a Phone Call to the Catalyst

You may call the Catalyst RTU at any time from any telephone. The product will wait the configured number of rings before answering and beginning a voice status report. The status report starts with the Unit ID message, followed by a request for entry of touch-tone digit 5. Press the 5 on the phone’s keypad. Entering this tone establishes that this is to be a voice mode session, not a data mode (modem) session.

Exception: If PINs (Personal Identification Numbers) have been configured, the RTU will require entry of a valid PIN before proceeding.

Next will follow any special warning messages, followed by a “Channel Status Report.” The channel status report will report only the channels whose alarm state is "other than normal." If there are no channels whose alarm state is "other than normal," then channel status report will simply consist of a statement that, "All Channels Are Normal."

Note: "Other than normal" channels can include channels which were at one time unacknowledged, became acknowledged, and are now still acknowledged but awaiting the end of the alarm reset time before becoming rearmed.

After the channel status report (or "All Channels Are Normal" message) the user will hear a warble prompt, then a menu of options will be repeated.

The purpose of menu options is to invite the user do one of the following:

- To acknowledge any unacknowledged alarms
- To terminate the call without acknowledging any alarms
- To repeat the channel status report
- To select other RTU modes such as program mode, read-only program mode, or text search mode."