Aastra 675xi Series, Руководство по выпуску

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New Features in Release 2.4.1
4 RN-001029-03, Release 2.4.1, Rev 01
IP Phone Release Notes 2.4.1
New Features in Release 2.4.1
Description
This section provides a new feature in SIP IP Phone Release 2.4.1. This new feature applies to
all of the Aastra IP Phones, unless specifically stated otherwise. The feature also specifies
whether it affects the Administrator, the User, or both.
Configurable Support for Compact SIP Header
Release 2.4.1 provides a new feature that allows an Administrator to shorten the length of a SIP
packet by using the compact form. This feature is in accordance with Compact SIP Headers
defined in RFC 3261.
For example, the following SIP header is the long format:
Via: SIP/2.0/UDP
10.50.91.2:5060;branch=z9hG4bK571ebe0c;rport=5060;received=10.50.91.2
From: "Unknown" <sip:Unknown@10.50.91.2>;tag=as19d00fc8
To: <sip:1106@10.50.110.54:5060;transport=udp>;tag=916699998
Call-Id: 73cad5456806f3a7768d17e8617279d7@10.50.91.2
CSeq: 102 OPTIONS
Feature Description
SIP Feature
Configurable Support for Compact SIP
Header
(For Administrators)
Release 2.4.1 provides a new feature that allows an
Administrator to shorten the length of a SIP packet by
using the compact form. This feature is in accordance
with Compact SIP Headers defined in RFC 3261.
User Interface Feature
Support for Additional Codec Types and
Codec Priority Selection
(For Administrators)
Release 2.4.1 includes support for a additional code
types. Now using the Aastra Web UI or the configuration
files, an Administrator can select from up to 14 codecs
for the phones AND customize a codec preference list of
up to 10 codecs. Silence suppression can still be enable
or disabled as required.
SIP Feature