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ESI is pleased to announce the following SIP phone upgrades:

  • ESI ePhone4 (Wed, 5/2/18) at 8:00 PM CST. Click here for release notes.
  • ESI 30SIP (Thu, 5/3/17) at 8:00 PM CST. Click here for release notes.

Your phone will be upgraded for you. All you need to do is enjoy your ESI SIP phone.

If you experience any issues please contact ESI Technical Support at 800-850-2151 or open a ticket via

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