The ESI mPhone™

ESI mPhone™ is the latest addition to ESI’s line of award-winning SIP-based softphones. As the market leader of desktop phones and mobile VoIP software products and solutions, Estech Systems, Inc. (ESI) has created the ESI mPhone™ application for the ESI IP Server 900™ business phone system, including ESI mPhone™ Push Service.

### PHONE SYSTEM REQUIREMENTS ###

* ESI IP Server 900™ phone system running software version P4.3.x or higher

* SIP station licenses on the system for each user

* SIP station user MUST be set to a Remote SIP Station

* Profile setup is handled by the Stretto Server and required to use this mobile app.

ESI's mPhone™ turns your tablet or smartphone into an extension on your ESI IP Server 900™ phone system, allowing those on-the-go employees to make and receive business calls from anywhere, while maintaining a single office phone number and voicemail.

HIGHLIGHTS

* Make and Receive calls with your office phone number

* Calls made with your mobile extension show your office caller ID

* Place calls on hold

* Transfer calls to other company or public numbers

* Make calls over remote WiFi or 3G / 4G / LTE

* Highly secure, SIP-based softphone with exceptional voice quality

* Multitasking support for background operation, such as fielding incoming calls while using other applications and Push Support

* Supported accessories include headphones, AirPods & other Bluetooth™ devices

* IPv4 & IPv6 support

For more information on the ESI mPhone™ application, please visit: http://www.esi-estech.com

IMPORTANT VOIP OVER MOBILE/CELLULAR DATA NOTICE

Some mobile network operators may prohibit or restrict the use of VoIP functionality over their network and may also impose additional fees, or other charges in connection with VoIP. You agree to learn and abide by your cellular carrier's network restrictions. Estech Systems, Inc. (ESI) will not be held liable for any charges, fees or liability imposed by your carrier for use of VoIP over Mobile/Cellular Data.

Emergency Calls

The ESI mPhone™ mobile product provides handling designed to redirect emergency calls to the Native Cellular Dialer when possible, on a best reasonable commercial efforts basis. However this functionality is also dependent on the operating system of the mobile phone, which is outside of ESI’s control and is subject to change at any time. As a result, the official position of Estech Systems, Inc. is that the ESI mPhone™ product is not intended, designed, or fit for placing, carrying or supporting Emergency Calls. Estech Systems, Inc. (ESI) will not be liable for any costs or damages arising, either directly or indirectly, from the use of this software application for Emergency Calls.