Table of Contents
Advertisement
C H A P T E R
4 :
G E T T I N G
T O
K N O W
T H E
O P E R A ™
F R A M E W O R K
the line interfaces, and after a call has completed, the system will automatically
wait for the next call.
"Loop" Mode
In this mode a call is initiated on one interface of the OPERA™ system
("Origin"), while another interface ("Termination") is waiting for an incoming
call. As soon as a call is established, a speech sample is transmitted from the
terminating side to the originating side. Simultaneously on both sides all
incoming signals are recorded to files. The signal recorded on the originating
side is usually used for end-to-end quality measurements. The signal recorded
on the terminating side contains the echo from the network, as well as the side
tone (=desired echo with short delay). The near end signal is usually used for
echo measurement. This operating mode is called the "Loop" mode.
Figure 4.15 shows the OptiCall window configured for loop measurements.
By using the radio buttons in the upper left corner of the OptiCall™ window
("Call Type"), select the operating mode you want to use. In the edit field next
to Number to dial enter the number that shall be dialled by the system.
Numbers can be entered plus an additional "," at any position to insert a pause
into the dialling sequence. This may be required on some PBXs since OPERA™
will immediately start dialling as soon as a dial tone is detected. For some
systems this might be too fast. Please refer to section "Common Settings" above
for a description of the other parameters.
Figure 4.15: The OptiCall window in loop mode configuration
45
Advertisement
Table of Contents
