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Article ID: 000024858
Last Modified Date: 05/15/2021
Access Level: Public

Calisto P540-M: How to Dial Internationally

How do I make international calls on the Calisto P540-M phone?
To place an international call using the dialpad on the Calisto P540-M phone:
  1. Press the "0" button on the keypad for 1.5 seconds (the "0" on the display changes to a "+").
  2. Key in the international phone number.
  3. Take the handset off of the phone. The phone will automatically add the additional country and other access codes and dial the number.