Sensaphone 1400 - Manual (Page 79)

Chapter 5: Communication Programming
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3. Using the number keys, enter the number of minutes, and then
press ENTER. To keep the previous setting, just press ENTER.
The 1400 will say “Enter seconds.”
4. Using the number keys, enter the number of seconds, and
press ENTER. To keep the previous setting, just press ENTER.
The 1400 will say “OK.”
To play back the Intercall Time:
1. Press the WHAT IS key
2. Press the INTERCALL TIME key
The 1400 will recite the programmed time.