AEQ
PHOENIX STRATOS
67
However, when the interface is
IP and configured in any of the
SIP modes (“DIRECT SIP” or
“PROXY
SIP”),
particular
coding algorithms won’t be
selected
and
connection
“profiles”
will
be
defined
instead, containing one or
more modes. This is like that
because
SIP
allows
the
participants
in
a
communication to negotiate
the coding algorithm, so the
one to be finally used will be
limited to the list the caller presents.
This possibility allows the configuration of the parameters associated to the coding to be used in
Audio over IP networks basing on SIP protocol (Proxy SIP and Direct SIP modes). This option
simplifies the selection of the algorithm to be used in a communication, because most of the
codecs have several tens of encoding algorithms in order to have the higher compatibility with
other equipments.
When a communication is established using SIP signaling, the codec negotiates the use of the
first compatible encoding algorithm included in a list called SIP CODEC PROFILE. That’s why
you should put these algorithms in order of preference.
Each one of the stored entries includes an alphanumeric identifier and a list of algorithms to
use, organized in order of preference. There several preset profiles in the unit, grouped by
delay, quality… etc.
Profiles can be added, modified or deleted in the “Encoding Profile
Management (SIP)” screen, accessible from the “Tools“ menu in
the upper Menu bar, described in paragraph 5.1.8 of “AEQ
ControlPHOENIX” user’s manual.
4.8. Ethernet Port configuration.
The “Ethernet config” menu allows you to configure the IP parameters of the Ethernet
interface in the unit.
The parameters to be configured are:
