R2511-HP MSR Router Series Voice Configuration Guide(V5)

283
Ste
p
Command Remarks
12. Configure the codec type and
switching mode for SIP
Modem pass-through function
globally.
default entity modem protocol pcm
{ standard | nte-compatible }
{ g711alaw | g711ulaw }
Optional.
By default, the SIP Modem
pass-through function is not
configured.
For information about how to use the global default parameters for fax, see "Configuring voice entities."
Displaying and maintaining FoIP configuration
Task Command Remarks
Display the statistics of the FoIP
module.
display voice fax statistics [ |
{ begin | exclude | include }
regular-expression ]
Available in any view.
Clear the statistics of the FoIP
module.
reset voice fax statistics Available in user view.
FoIP configuration examples
This section provides FoIP configuration examples.
Configuring FoIP
Network requirements
As shown in Figure 89, the headquarters of a company in City B and its branch in City A need to transmit
and receive faxes over an IP network.
• The IP addresses 1.1.1.1/24 and 2.2.2.2/24 are respectively assigned to the interfaces through
which the routers in City A and City B access the Internet.
• Router A in City A and Router B in City B are connected to fax terminals through an FXS voice
subscriber line.
• At the branch in City A, the number "0101001" is at tached to the FXS voice subscriber-line
connected to the fax machine. At the headquarters in City B, the number "07552001" is attached
to the FXS voice subscriber-line connected to the fax machine. Standard T.38 (UDP) protocol is used
for fax communication.
Figure 89 Network diagram
Configuration procedure
1. Configure Router A:
# Configure the standard T.38 (UDP) fax protocol.
<RouterA> system-view
Internet
Fax
Fax
City A City B
010-1001 0755-2001
Line 1/1 Line 1/1
1.1.1.1/24 2.2.2.2/24
Router A Router B