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3-43 41-001343-02 REV04 – 05.2014
Codec Preference List
You can configure the following codec preference list settings.
Autodial Settings
You can configure the following Autodial settings.
Parameter In
IP Phone UI
Parameter in
Aastra Web UI
Parameters in Configuration
Files
Description
N/A Basic Codecs
(G.711 u-Law,
G.711 a-Law, G.729)
sip use basic codecs Enables or disables basic codecs. Enabling this parameter
allows the IP phone to use the basic Codecs when send-
ing/receiving RTP packets. Valid values are 0 (disabled) and 1
(enabled). Default is 0 (disabled).
For more information, see Chapter 4, “Real-time Transport Pro-
tocol (RTP) Settings” on page4-74.
N/A Customized Codec Prefer-
ence List
sip customized codec Specifies a customized Codec preference list which allows you
to use the preferred Codecs for this IP phone.
For more information, see Chapter 4, “Real-time Transport Pro-
tocol (RTP) Settings” on page4-74.
N/A Packetization Interval “sip customized codec”
attribute
Packetization interval (ptime) is a measurement of the dura-
tion of PCM data within each RTP packet sent to the destina-
tion, and hence defines how much network bandwidth is used
for transfer of the RTP stream. Enter the ptime values for the
customized Codec list in milliseconds.
For more information, see Chapter 4, “Real-time Transport Pro-
tocol (RTP) Settings” on page4-74.
N/A Silence Suppression sip silence suppression Silence suppression is enabled by default on the IP phones.
The phone negotiates whether or not to use silence suppres-
sion. Disabling this feature forces the phone to ignore any
negotiated value.
For more information, see Chapter 4, “Real-time Transport Pro-
tocol (RTP) Settings” on page4-74.
Parameter In
IP Phone UI
Parameter in
Aastra Web UI
Parameters in Configuration
Files
Description
N/A Autodial Number
(Global and Per-Line)
sip autodial number
sip lineN autodial number
Globally or on a per-line basis, specifies the SIP phone number
that the IP phone autodials when the handset is lifted from the
phone cradle. An empty (blank) value disables autodial on the
phone.
For more information, see Chapter 4, “Autodial Settings” on
page4-84.
N/A Autodial Timeout
(Global and Per-Line)
sip autodial timeout
sip lineN autodial timeout
Globally or on a per-line basis, specifies the time, in seconds, that
the phone waits to dial a pre-configured number after the hand-
set is lifted from the IP phone cradle.
If this parameter is set to 0 (hotline), the phone immediately
dials a pre-configured number when you lift the handset. If this
parameter is set to a value greater than 0, the phone waits the
specified number of seconds before dialing the pre-configured
number (warmline) when you lift the handset.
Default is 0 (hotline).
For more information, see Chapter 4, “Autodial Settings” on
page4-84.
N/A Use Global Settings
(Per-line configurations
only)
N/A For each line, this parameter specifies to use the global autodial
settings of “Autodial Number” and “Autodial Timeout”.
For more information, see Chapter 4, “Autodial Settings” on
page4-84.