Polycom CX5500 Administrator's Guide

Polycom CX5500 Unified Conference Station Administrator’s Guide 1.1.0
Polycom, Inc. 104
To retrieve a parked call, go off-hook and press the Retrieve soft key, or tap New Call soft key, enter the
call orbit number, and tap Call.
Enable Last Call Return
The phone supports redialing of the last received call. The table Enable Last Call Return shows you the
parameters to enable this feature. This feature requires support from a SIP server. With many SIP
servers, this feature is implemented using a particular star code sequence. With some SIP servers,
specific network signaling is used to implement this feature.
Enable Last Call Return
Central Provisioning Server
template > parameter
Enable or disable last call return
features.cfg > feature.lastCallReturn.enabled
Specify the string sent to the server for last-call-return
sip-interop.cfg > call.lastCallReturnString
Example Configuration for Last Call Return
The configuration parameters for last call return feature are located in two template files. You can enable
the feature using the features.cfg template file and configure the feature using the sip-interop.cfg file.
In the following configuration example, the last call return feature has been enabled in the features.cfg
template file:

Polycom CX5500 Specifications

General

Brand	Polycom
Model	CX5500
Category	Conference System
Language	English