Prontonet User’s Manual v410 101
a. The line 2 is connected and the Decoder 2 is FRAMED. ProntoNet receives
a call in the line 1 and detects that the audio is encoded in DUAL, JOINT
STEREO or STEREO mode at 64 Kbps.
Line 1 will connect but the audio will not be decoded since ProntoNet
working as a DUAL CODEC only allows two MONO communications. The
display shows an error code to indicate the situation.
b. ProntoNet receives a call in the line 2 and detects that the audio is
encoded in DUAL, JOINT STEREO or STEREO mode at 64 Kbps.
Line 2 will connect but the audio will still not be decoded since these
modes are not allowed on Line 2. The display shows an error code to
indicate the situation.
c. The line 1 is connected and the Decoder 1 is FRAMED in DUAL, JOINT
STEREO or STEREO mode at 64 Kbps. ProntoNet receives a call in the line
2.
Line 2 will connect but the audio will still not be decoded since these
modes are not allowed on Line 2. The display shows “STOP” to indicate
the situation.
V.10 ProntoNet operating as an X21 codec
This operation is very simple. Remember that the ProntoNet only has one X21
port and that it is possible to connect or disconnect simply using the CALL 1 key.
As soon as the connection is made the ProntoNet starts to transmit and receive
audio via the X21 port.
V.11 About the Ancillary Data
In MPEG modes and aptX it is possible to multiplex ancillary data with the bits of
audio compressed.
There are two different ports to use with the ancillary data:
RS232 Port: Any data terminal, a PC for example, can be connected to this
port in order to transmit and receive data to/from the other end. The format
of the ancillary data is compatible with other codecs. The user can select the
bit rate from the Ports configuration menu. It is not advisable to select high
L1¼ CONNECTED FRAMED
L2Å CONNECTED STOP
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