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Windows PC Software
4.7.2.2 Transmission
Under Transmission all Audio and data parameters concerning the trans-
mission can be configured.
In delivery status, four standard Transmission Modes are available:
– Telephone: Audio transmission with 3,1-kHz (G.711). On the second B
channel an independent telephone or 7-kHz connection can be established.
– 7-kHz (Auto): Audio transmission with 7-kHz (G.722). The two standard
signalling procedures ITU-T J.52 (often also named H.221) and SRT (Stati-
stical Recovered Timing) are supported. On the second B channel an inde-
pendent telephone or 7- kHz connection can be established.
– MPEG 1B (Auto): Audio transmission with ISO/MPEG Layer III or optio-
nally Layer II (order number 450305) and a data rate of 64-kbit/s (1 B). For
the signalling, the most important procedures are available. On the second
B channel an independent telephone or 7- kHz connection can be esta-
blished. However, a second MPEG connection cannot be established.
– MPEG 2B (Auto): Audio transmission with ISO/MPEG Layer III or optio-
nally Layer II (order number 450305) and a data rate of 128-kbit/s (2 B). For
the signalling, the most important procedures are available.
You can create further user defined transmission modes according to your re-
quirements under User Defined. These transmission modes are also available
when the system is controlles via the front keypad and display.
NOTE
The standard transmission modes work with AutoDynamicSync (ADS),
which guarantees an automatic synchronisation - also with systems from
other manufacturers. Further details can be found in CHAPTER A1, Page
137.
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