Mobile Extension; Figure 1-29 Mobile Extension Layout - NEC SL1100 Features And Specifications Manual

SL1100
Description
A Mobile Extension is an external telephone (preferably a mobile phone) linked to the SL1100 via a
Proxy Port to operate as an internal SLT extension. The extension sends DTMF signals to the system
allowing access to the system features. A registered Mobile Extension uses 1 analog port (ports are
reserved in groups of 4), however, no PCB support (analog or digital) is required. The Mobile
Extension port must be an unequipped extension port on the SL1100 system - no physical keyset is
required on the SL1100 system.
M
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 CLI of the Mobile Extension must match the
number in the Speed Dial bin. Once internal dial tone is presented, the operation is similar to an SLT
user lifting the handset.
In the absence of DIDs, the VRS can be used to transfer the Mobile Extension call to the Mobile
Extension number. This provides internal dial tone when the CLI is presented and matches the
number in the associated Speed Dial bin.
Alternatively, if calling line identification routing is enabled, the relevant Speed Dial bin could be
transferred to the Mobile Extension proxy port which would then provide internal dial tone.
1-510

Figure 1-29 Mobile Extension Layout

Mobile Extension

Mobile Extension
ISSUE 2.0