Prodys ProntoNet - Network Type Dependent Configuration

Prontonet User’s Manual v410 89
V.5 Configuration parameters that are dependant on the network
type selected
There are two fundamental reasons for which the user must change the
ProntoNet configuration parameters when a new communications interface is
selected:
 The available bandwidth over the selected network (IP, ISDN or X21). This
places limitations on the bit-rate that can be selected and the amount of
compression. As an example: over ISDN it is not possible to send
uncompressed audio and the maximum bit-rate for any algorithm is
128Kbps.
 The number of available channels: With ISDN communications it is possible to
have two totally independent connections with a binary rate of 64 Kbps on
each connection. When ISDN is selected as the network, the ProntoNet can
work as DUAL CODEC.
The following table shows what the differences are between the various
communications networks with regards the operation of the ProntoNet:
NET ALGORITHM BIT RATES (Kbps) Nº CHANNELS
PCM 16 bits @ 48 KHz.
G711 64
G722 64
MPEG1,2 LII 64,128,192,256,384
MPEG1,2 LIII 64,128,192,256
MPEG 2,4 AAC LC 64,128,192,256,384
MPEG 4 AAC LD 64,128,192,256,384
IP
aptX
TM
64,128,192,256,384
1 Mono
or
1 Stereo
G711 64
G722 64
MPEG1,2 LII 64,128
MPEG1,2 LIII 64,128
MPEG 2,4 AAC LC 64,128
MPEG 4 AAC LD 64,128
ISDN
aptX
TM
64
2 Mono
or
1 Stereo
G722 64
MPEG1,2 LII 64,128,192,256,384
MPEG1,2 LIII 64,128,192,256
MPEG 2,4 AAC LC 64,128,192,256,384
MPEG 4 AAC LD 64,128,192,256,384
X21
aptX
TM
64,128,192,256,384
1 Mono
or
1 Stereo