Specifications

3.10.2 IST Distinctive Ringing
Description: Intercom calls that ring at IST equipment have a different cadence than outside calls. For
the JM008 interface, the intercom ring cadence is: 0.5 sec. on, .1 sec. off, 0.5 sec. on, 4
sec. off, and the outside call ring cadence is: 2 sec. on, 4 sec. off. For the ATI-D
interface, the intercom ring cadence is: 1 sec. on, .5 sec. off, 1 sec. on, 3.5 sec. off, and
the outside call ring cadence is: 2 sec. on, 4 sec. off.
If needed, you can disable this distinctive ringing feature to make the intercom ring
cadence the same as that for outside calls.
To Program: 1. Dial 53. “STATION FEATURES”
2. Dial 33. “DIST. RING XX ”
3. Press A1 to toggle between enable and disable (LED On = Enable)
—OR—
dial 1 to Enable (A1 LED = Enable) “DIST. RING ON”
dial 2 to Disable. “DIST. RING OFF ”
4. Dial ✳ for next feature
—OR—
dial ✳✳for configuration mode.
To change setting, repeat procedure and make opposite selection.
3.10.3 IST Through Dialing
Description: With this programming feature enabled, any DTMF signaling tones that are generated by
the IST equipment pass through the JM008 or ATI-D, the common equipment, and any
line connection into the switched network. The system automatically enables this feature
when you connect the JM008 or ATI-D to the DSU II. Equipment such as the proprietary
voice mail systems and the 2500 tone dial telephone require thru dialing; however, you
should disable this feature for equipment such as model 500 rotary-dial telephones.
To Program: 1. Dial 53. “STATION FEATURES”
2. Dial 07. “ATI THRU DIALING”
3. Select station ports (LED On = Selected)
—Station 10–57 = Dial 10–57 or press C10–C57.
4. Dial ✳ for next feature
—OR—
dial ✳✳for configuration mode.
To clear current setting, repeat procedure.
IMI66–132 DSU II Digital Telephone System
3 – 94 Programming The DSU II System