
Customize feature/line key labels
SIP 4.3 provides the ability to create and edit a label for a line key through the IP Deskphone
user interface.
If
the IP Deskphone user enters a blank label, and a default key label had been created in the
custom keys file, then the default key label overrides the blank key label.
For more information, see the User Guide for the appropriate IP Deskphone model.
SIP 4.3 Service Pack 2 (SP2)
SIP 4.3 SP2 introduces the following changes.
CONTACT_HDR_PORT_CS1K parameter
The CONTACT_HDR_PORT_CS1K parameter configures SIP IP Deskphones to register to
a Communication Server 1000 server using TLS and to be able to receive calls using TLS.
Starting with SP2, this parameter is always treated as enabled ("YES").
PREFER_CUSTOMIZED_RBT parameter
SIP 4.3 SP2 introduces the PREFER_CUSTOMIZED_RBT feature configuration parameter.
This parameter configures the opportunity to not stop the customized ringback tone when a
180 Ringing message is received.
If configured as YES, the media stream is not closed and the customized ringback tone
continues to play.
If configured as NO, the media stream is closed and local ringback tone is generated
(default).
Other changes
The HTTP 503 response enhancement was introduced in SIP Software Release 4.1 Service
Pack 1 (SP1).
HTTP 503 response enhancement on page
19
The SIP Domain DNS Lookup feature is introduced.
SIP Domain DNS Lookup feature on page
19
New in this release
18 SIP Software for Avaya 1200 Series IP Deskphones-Administration September 2013
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