NEC UNIVERGE GT890, User Manual

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About ST500
ST500 is a pre-installed app for enabling extension calls on smart devices. By operating on smart devices,
ST500 integrates with a communication server (UNIVERGE SV Series) and is incorporated into an IP
telephone system to provide high-quality voice calls. ST500 offers video calls as well.
Call features
The following table shows call related features available on ST500.
Table 5: Call features.
Feature Description
Originating calls
Outgoing calls can be originated from various screens of ST500 such as
Favorites, Call, Contacts, and History.
Answering calls Incoming calls can be answered or declined. Missed calls are notified.
Holding calls An ongoing call can be hold.
Transferring calls A call can be transferred to another party.
Three-way call A conference call with two guests is possible.
Call forwarding
Calls that arrive while the called party is away can be forwarded to a number
that is preset with an access code.
Call forwarding on no
answer
Calls that arrive when the called party cannot answer can be forwarded to a
number that is preset with an access code.
Call forwarding on busy
Calls that arrive while the called party is on other call can be forwarded to a
number that is preset with an access code.
Out of service call
forwarding
Calls that arrive while the called party is at a place where no radio wave can
reach can be forwarded to a number that is preset with an access code.
Call pickup
Calls that come to a member of the same group while the member is away can
be picked up by anyone in the same group with preset access codes.
Voicemail Originating a call to a voicemail system to use voicemail features is available.
Note:

When the ST500 is in use, do not activate the other VoIP apps.
The ST500 does not operate properly because of a conflict with audio controls.

Always use ST500 in the active state (it can run in the background).

Select Language from Phone settings.