Vertical SBX IP 320 Features & Operation Manual page 68

Call Handling
To make outgoing calls from the mobile extension through the SBX IP 320 system:
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Conditions
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The mobile extension user dials his DID number of the SBX IP 320 system. The internal
dial tone will sound.
The mobile extension can proceed to make an internal or outgoing call with CLI number
of extension.
If the extension 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 through the SBX IP 320 system, it
sends the CLI number of the Station extension; the mobile extension cannot use the
transfer feature.
After the no answer timer expires, a call will be routed to the DID no answer destination
(the no answer timer of the SBX IP 320 system is shorter than GSM).
This feature applies only to ISDN DID Lines, ICM calls, and transferred calls.
The message wait or call back feature is not supported on mobile extensions.
When on a mobile extension conversation through the SBX IP 320, the DTMF receiver is
dedicated to the mobile extension.
A mobile extension can transfer the call to another extension. If he tries to seize a CO line
or to dial the Hunt Group or dial another destination except an extension, an error tone
will be provided.
If the "Transfer recall" timer expires, a call is not routed 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 (according to PGM 143-FLEX7-CLI Transit: ORI / CFW)
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 his own DID number of the SBX IP 320 system to make a
CO call, the SBX IP 320 system checks the CLI of the mobile extension number. If the
CLI matches the "Mobile Extension Number" or "Mobile CLI" which is registered to his
extension, the system provides CO dial tone and allows him to make a CO outgoing call
through the SBX IP 320 system.
SBX IP 320 Features & Operation Guide
58