Polycom CX5500 Administrator's Manual page 105

Polycom CX5500 Unified Conference Station Administrator's Guide
1.1.0
Once last call return is enabled, you can configure the feature using parameters located in the sip-
interop.cfg template file. The following shows the default value for the call.lastCallReturnString
parameter. The last call return string value depends on the call server you use. Consult with your call
server provider for the last call return string.
When you enable the last call return feature, the phone displays an LCR soft key when it goes off-hook,
as shown next. When you press the LCR soft key, you place a call to the phone address that last called
you.
When you select Last Call Return, you place a call to the phone address that last called you.
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