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VoIP subscriber gateways
55
–
Silencedetector
–
when checked, use silence detector otherwise do not use it;
–
Echocanceller
– when checked, use echo canceller otherwise do not use it;
–
Use RTCP (RTCP)
– when checked, use RTCP protocol to control a voice channel. The following
parameters are available for editing:
Sending interval
– interval of message transmission via RTCP protocol, in seconds;
Receiving period
– RTCP packet receiving period. Assigned in the units of transmission
period. The device breaks connection if no one packet will be received via RTCP protocol
from the opposite site during the receiving period;
–
Dumb pass-thru:
VBD codec
– codec selection (G.711A or G.711U) to transmit data in voice channel;
Payload type
– payload type of voice channel data transmission (acceptable values for use are 0, 8, and
the range from 96 to 127). Setting is used for modem data transmission when codec and payload type of RTP
opposite side are changed during transition to modem.
Jitter Buffer
compensates jitter effect. Received packets on the reception side will be not reproduced
immediately, they will be reproduced with the delay which is unnoticed by man. But this delay allows you to
improve quality of voice transmission in case of jitter.
–
Adaptive Jitter Buffer
– when checked, buffer size will change from minimum to maximum
automatically. Otherwise, buffer size will be fixed and equal to maximum size of adaptive jitter
buffer;
–
Soft Deletion Mode
– when checked, to improve the quality of voice transmission the packets are
not dropped immediately when they achieve maximum value of jitter buffer. They will be dropped
in the period of deletion threshold expiration. Otherwise the packets will be deleted immediately
after achieving max value of jitter buffer;
–
JB size for Fax/Modem
–
time interval of
packet collecting during fax/modem transmission
(available values are from 0 to 200 ms);
–
Min Delay, ms
–
minimum size of jitter buffer (acceptable value range is from 0 to 200 ms, but no
more than max value of jitter buffer);
–
Max Delay, ms
–
upper limit (maximum size) of jitter buffer (acceptable value range is from 0 to
200 ms);
–
Deletion Threshold (DT)
–
time period, after that, in ‘Soft’ mode, all packets will be deleted
immediately (acceptable value range is from 0 to 500 but no less then max value of jitter buffer);
–
Dispersion time
–
parameter to determine time after which reflected signal will achieve initial
source of the signal (available values are 8, 16, 32, 48, 64 ms).
To save changes into the device operative memory, click ‘Save’ button. To leave the edit mode without
saving changes, click ‘Cancel’.
Dialplan Configuration:
Dialplan of the device is configured in the block shown below.
Dialplan is assigned by regular expressions. Structure and format of regular expressions providing various
capabilities of dial number are shown below.
