AudioCodes mediapack MP-500, Руководство пользователя

Страница: 496 / 574

SIP User's Manual 496 Document #: LTRT-12801
MP-500 MSBG
„ V21ModemTransportType = 2
„
V22ModemTransportType = 2
„ V23ModemTransportType = 2
„ V32ModemTransportType = 2
„ V34ModemTransportType = 2
„
BellModemTransportType = 2
9.6.2.4 Fax / Modem Transparent Mode
In this mode, fax and modem signals are transferred using the current voice coder without
notifications to the user and without automatic adaptations. It's possible to use the Profiles
mechanism (refer to ''Coders and Profile Definitions'' on page
160 ) to apply certain
adaptations to the channel used for fax / modem (e.g., to use the coder G.711, to set the
jitter buffer optimization factor to 13, and to enable echo cancellation for fax and disable it
for modem).
To configure fax / modem transparent mode, use the following parameters:
„ IsFaxUsed = 0
„ FaxTransportMode = 0
„ V21ModemTransportType = 0
„ V22ModemTransportType = 0
„ V23ModemTransportType = 0
„ V32ModemTransportType = 0
„ V34ModemTransportType = 0
„ BellModemTransportType = 0
„ Additional configuration parameters:
•
CoderName
•
DJBufOptFactor
•
EnableSilenceCompression
•
EnableEchoCanceller
Note: This mode can be used for fax, but is not recommended for modem
transmission. Instead, use the modes Bypass (refer to ''Fax/Modem Bypass
Mode'' on page
494 ) or Transparent with Events (refer to ''Fax / Modem
Transparent with Events Mode'' on page 496 ) for modem.