【實用通訊app】IP900 Mobile|最夯免費app-綠色工廠好玩App

ESI's IP900 Mobile turns your Android tablet or smartphone into an extension on your IP Server 900 phone system, allowing those on-the-go to make and receive business calls from anywhere while maintaining a single office phone number and voice mail.

* Receive calls to your office phone number

* Make calls as your office extension

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

* Place calls on hold

* Transfer calls to other company or public numbers

* Notification of new voice mail messages

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

### PHONE SYSTEM REQUIREMENTS ###

* ESI IP Server 900 phone system running software version 25.3.1.15 or higher

* SIP station licenses on the system for each user

*** Voice quality is highly dependent upon your WiFi or 3G / 4G / LTE network bandwidth ***

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*Warning for 3G / 4G / LTE Usage*

Some mobile carriers prohibit or restrict the use of VoIP calls over their networks and may interfere with, block, or institute fees for calls made over their 3G / 4G / LTE data networks. Check the terms of your cell phone agreement to determine the rules for your carrier. ESI cannot guarantee service and is not responsible for any charges or fees assessed in connection with usage of IP900 Mobile on your mobile device.