R0106-HP MSR Router Series Voice Command Reference(V7)

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Usage guidelines
To use ECM, make sure the calling and called fax machines support ECM.
Use the fax ecm command on both calling and called devices.
Examples
# Enable ECM for POTS entity 4.
<Sysname> system-view
[Sysname] voice-setup
[Sysname-voice] dial-program
[Sysname-voice-dial] entity 4 pots
[Sysname-voice-dial-entity4] fax ecm
fax level
Use fax level to configure the transmit energy level.
Use undo fax level to restore the default.
Syntax
fax level level
undo fax level
Default
The transmit energy level is –15 dBm.
Views
POTS entity view, VoIP entity view
Predefined user roles
network-admin
Parameters
level: Specifies transmit energy level (the transmit energy level attenuation value) in dBm, in the range of
–60 to –3. The greater the level value, the higher the energy. The smaller the level value, the greater the
attenuation.
Usage guidelines
You can use this command to adjust the transmit energy level when you cannot establish fax calls when
all other settings are correct.
Examples
# Configure the transmit energy level as –20 dBm for POTS entity 4.
<Sysname> system-view
[Sysname] voice-setup
[Sysname-voice] dial-program
[Sysname-voice-dial] entity 4 pots
[Sysname-voice-dial-entity4] fax level -20
fax local-train threshold
Use fax local-train threshold to configure the local training threshold.