New features in release 2.4, Description – Aastra Telecom 675xi Series User Manual
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New Features in Release 2.4
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RN-001029-03, Release 2.4, Rev 00
IP Phone Release Notes 2.4
New Features in Release 2.4
Description
This section provides the new features in SIP IP Phone Release 2.4. These new features apply to
all of the Aastra IP Phones, unless specifically stated otherwise. Each feature also specifies
whether it affects the Administrator, the User, or both.
Feature
Description
Hardware Features
5xi Series Phones and Expansion Modules
(For Users and Administrators)
In Release 2.4, the 5xi Series phones have been
renamed to 675xi Series phones to comply with Aastra’s
campaign to harmonize its product names. Expansion
Modules have also been renamed.
SIP Features
“SIP Join” Feature (not applicable to the
(For Administrators)
Release 2.4 includes support for RFC 3911 which allows
an additional caller to join an active call between two
parties if the caller knows the dialog information.
Missed Calls Message Event Notification
(For Administrators)
In Release 2.4, the phones now include a
“Missed-Calls-Message” field in a “message summary”
event of a SIP NOTIFY message.
(For Administrators)
Globally Routable User-Agent URIs (GRUUs) provide a
way for anyone on the Internet to route a call to a
specific instance of a User-Agent. GRUU allows an
incoming session request to be sent to a specific phone
instead of all phone’s in the network.
Support for Early-Only Parameter in
(For Administrators)
The phones now support the early-only parameter in the
“Replaces” header according to RFC3891.
P-Preferred Identity Header for BLA Accounts
(For Administrators)
Release 2.4 now supports the BLA specification,
draft-anil-sipping-bla-02, which states that the
P-Preferred-Identity header (RFC3325) gets added to
the INVITE message to indicate the Caller-ID that is
used for the call.
BLA Support for Message Waiting Indicator
(For Administrators)
Release 2.4 allows you to enable or disable the ability
for a BLA configured line to send a SUBSCRIBE SIP
message for a Message Waiting Indicator (MWI)
message-summary event subscription, with the BLA
account in the "TO" contact header and the in a URI.
Reason Header Field in SIP Message
(For Administrators)
The IP Phones now support the receiving of the Reason
Header Field in a SIP CANCEL message, as described
in RFC3326.