QX1000 Manual II: Administrator's Guide
Administrator’s Menus
QX1000; (SW Version 5.3.x)
95
Generate And Install New CA Root Certificate
The
Generate and Install New CA Root Certificate
page is
used to define, generate and install a new CA root certificate for
SIP TLS traffic. All fields in this page require root certificate
specific information.
The
General Certificate and Install
button is used to generate
a new CA root certificate based on the defined data and to
install it on the QX1000. QX1000 will get rebooted automatically
once the new certificate is installed. You may download the
actual copy of the certificate from
page.
To ensure a secure TLS connection with the QX1000's defined
CA root certificate, both sides should have the same certificate
installed. If the end user is an IP phone, you may activate the
TLS certificate update mechanism from it to obtain the latest
certificate generated by the QX1000. If the end user is a server
or other device, you may download the certificate from the
QX1000 and apply it manually on the remote side.
Fig. II-159: Generate and Install New CA Root Certificate page
RTP Settings
The
RTP Settings
page allows the administrator to configure the codec’s packet size and silence suppression for each voice codec, to select the
G726 codec standard, to define RTP/RTCP port ranges, etc. All parameters listed on this page may be modified and submitted.
The
Codec Properties
table lists all codecs with the corresponding packetization interval and information about silence suppression.
Edit
opens the
Edit RTP Settings
page where the codec settings can be modified. To use
Edit
, only one codec may be selected at a time,
otherwise the “One record should be selected” error message appears.
The
Packetization Interval
is the time interval between two
RTP packets of the same stream. If the interval is increased, the
overhead is decreased but the voice quality may deteriorate as
a result. If the interval is decreased, the network load is
increased and the delay is reduced.
Silence Suppression
disables RTP packet transmission in
case of no voice activity. This feature helps to avoid extra traffic
if the RTP stream contains no voice activity. It is activated after
two seconds of silence and restarted immediately if any audio
appears.
The
G.726 Standard
radio buttons are used to select between
packaging the G.726 codewords into octets. If you experience
problems with the G.726 voice quality when one of these
packaging is selected, try a different one.
•
If
Use ITU_T specification
is selected, the ITU I.366.2
(“AAL2 type 2 service specific convergence sublayer for
narrow-band services”) type packaging of codewords is
used, where packing code words into octets is starting from
the most significant rather than the least significant digit in
the octet.
•
If
Use
IETF RFC
is selected, the IETF RFC (“RTP Profile
for Audio and Video Conferences with Minimal Control”)
type packaging of codewords is used, where packing code
words is starting from the least significant position in the
octet.
Fig. II-160: RTP Settings page
RTP/RTCP Port Range:
•
Min
- minimal port has to be higher than 1024 and lower than the maximal port range. Only even numbers are allowed.
•
Max
- maximal port has to be lower than 65536 and higher than the minimal port range. Only odd numbers are allowed.
Since the specified maximum port has to be higher than the minimum port, the error message “Min port number should be less than max port
number” will appear if this condition is not met.
The port range must consist of digits only, otherwise the error “Incorrect Port Range: only Integer
