Mobile Extension - NEC UNIVERGE SV9100 Features And Specifications

Mobile Extension

Description
A mobile extension is an external telephone (preferably a mobile phone) linked to the UNIVERGE
SV9100 via a Proxy Port to operate as an internal single line telephone extension. The extension sends
DTMF signals to the system allowing access to the system features. A registered Mobile Extension uses
one analog port (ports are reserved in groups of two), however, no PCB support (analog or digital) is
required. The Mobile Extension port must be an unequipped extension port on the UNIVERGE SV9100
system - no physical telephone is required on the SV9100 system.
A mobile extension cannot be used as a voice mail port.
This feature can currently be used with ISDN PRI trunks or SIP trunks.
It is recommended to use this feature with an ISDN PCB (PRI or BRI), however, analog trunks can be used as
well.
To provide a proper disconnect, Disconnect Supervision is required for the trunks used for this feature.
The Mobile extension internal extension number (Proxy Port) is linked to a speed dial bin to provide
integration.
If all external trunks are busy when a call is made to the mobile extension, ringback tone is presented giving the
impression the phone is ringing.
A DID is directed to the Mobile Extension internal extension number (Proxy Port), and to provide internal
dial tone to the Mobile Extension, the incoming calling line identification of the Mobile Extension must
match the number in the Speed Dial bin. Once internal dial tone is presented, the operation is similar to
a single line telephone user lifting the handset.
Any DID with Program 22-11-13 enabled, provides internal dial tone to the Mobile Extension, must have
an incoming calling line identification that matches exactly the number of any Mobile Extension Speed
Dial Bins.
In the absence of DIDs, the VRS can be used to transfer the Mobile Extension call to the Mobile
Extension extension number. This provides internal dial tone when the calling line identification is
875