Vertical SBX IP 320 Service Manual download pdf (Page 87)

Call Handling 1-73

Chapter 1: Basic System Features

SBX IP Programming & Operations Guide

Mobile Extension

This feature allows user to utilize a mobile phone as an extension of the SBX IP system for

receiving and making calls.

NOTE: This feature is available on PRI, T1 a nd SIP trunks only.

CONDITIONS

• If the user station is busy, forwarded, or in the DND state, calls will not be routed to the

mobile extension.

• When making an external call from a mobile extension, the CLI number of the station itself

is sent (not the mobile phone number). However, the mobile extension cannot use the

transfer feature.

• After the No-Answer Timer expires, calls are routed to the DID No Answer Destination.

The no answer timer of the system is shorter than for the GSM (Global System for Mobile

communication).

• This feature applies to ISDN DID Lines, ICM calls, and transferred calls only.

• The Message Wait / Call Back feature is not supported on mobile extensions.

• When on a mobile extension conversation through the system, the DTMF (dual tone

multi-frequency) receiver is dedicated to the mobile extension.

• If a mobile user attempts to seize a CO line, dial a Hunt Group another destination except

an extension, an error tone sounds.

• If the "Transfer recall" timer expires, calls are not routed back to the extension associated

with mobile extension.

• An outgoing call from a mobile extension is restricted by the internal station's COS.

• A mobile extension can receive the Calling Party number or his own extension CLI

number as CLI (see ADMIN PROGRAMMING).

• To use the "Transferring call / outgoing call from mobile extension" feature, the CO line

connected with the mobile extension should be set to a DID line.

• When a mobile extension calls its own DID number within the system to make a CO call,

the system checks the CLI of the mobile extension number. If the CLI matches the "Mobile

Extension Number" or "Mobile CLI" registered to that extension, the system provides CO

dial tone. It then allows the user to make a CO outgoing call through the system.

• If the extension is a member of a Hunt Group (except Ring Hunt Group), a call is routed to

the mobile extension.

• To use the mobile extension as member of Hunt group, appropriate programming must be

performed (see ADMIN PROGRAMMING).

• A mobile extension can transfer a call to another station's mobile extension.

Release 3.5

June 2010

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Vertical SBX IP 320 Service Manual Page 87