H3C Technologies H3C MSR 50 - Manual (Page 591)

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SIP modem pass-through function
The SIP modem pass-through function is mainly used for remote device management. Because the VoIP
network has replaced part of the traditional PSTN, VoIP devices are required to support the modem
pass-through function, which can help remote PSTN users to log in to internal network devices through
dialup.
Configuring fax and modem
Before you configure fax and modem, you must configure local numbers and call routes. See Basic
settings for details.
Configuring fax and modem parameters of a local number
Select Voice Management > Local Number from the navigation tree, and then click the icon of the
local number to be configured to access the local number fax and modem configuration page, as shown
in Figure 599 .
Figure 599 Local number fax and modem configuration page
Table 214 Configuration items
Item Description
Fax Function
• Enable. The fax parameters can be configured only when the fax function is enabled.
• Disable.