2811 H323 FXS Callmanager FAX configuration

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Mar 12th, 2010
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I have a branch router that has an ISDN PRI  as its main line and

a couple of FXS cards.  The main location has our Call Manager. We have a FAX maching plugged into one of the  FXS ports at the branch location. Our 4 digit extensions match the last 4 digits of their DID.

What is the best way to configure this fax machine to send and recieve calls both internal as well as external? And use its DID to the PSTN. I would rather not use MGCP.


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Brandon Buffin Fri, 03/12/2010 - 12:13
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Assuming you have dial peers configured now, the fax can use these dial peer to make outbound calls. You can make the FXS port dialable internally by giving it an extension:

dial-peer voice 1 pots

destination-pattern 100

port 0/0/0

You can then use a voice translation rule to translate the DID to this extension for inbound calls.

Hope this helps.


Arturo Alejandr... Fri, 01/07/2011 - 19:42
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I did it, using sccp

Just add a new gateway on the CUCM in my case is 2951

add with sccp select correct module and slot for the fxs

here is router config...

stcapp ccm-group 1


sccp local GigabitEthernet0/0
sccp ccm identifier 2 version 7.0
sccp ccm identifier 1 version 7.0

dial-peer voice 9020 pots
service stcapp
port 0/2/0
dial-peer voice 9021 pots
service stcapp
port 0/2/1
dial-peer voice 9022 pots
service stcapp
port 0/2/2
dial-peer voice 9023 pots
service stcapp
port 0/2/3

here is the show for stcapp

Port       Device          Device   Call          Dev     Directory   Dev
Identifier Name            State    State         Type    Number      Cntl
---------- --------------- -------- ------------- ------- ----------- ----
0/2/0      ANXXXXXXXXXXX100 IS       IDLE           ALG     7080       CCM
0/2/1      ANXXXXXXXXXXX101 IS       IDLE           ALG     7081       CCM
0/2/2      ANXXXXXXXXXXX102 IS       IDLE           ALG     7082       CCM
0/2/3      ANXXXXXXXXXXX103 IS       IDLE           ALG     7083       CCM



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