[cisco-voip] Cisco VG204/202 & Hylafax

[Kim, Hyoun S]

I recently just completed installing several Cisco VG204 & VG202
gateways at my office.  We use a mix of real fax machines and a Linux
server running Hylafax.  The Hylafax server is used only for receiving
faxes.  No users use the Hylafax server to send faxes because we have
real physical fax machines located strategically throughout the office.

 

When receiving faxes to the physical fax machines, the faxes are
received just fine.  However, when faxes are received to numbers
associated with the Hylafax server, we run into an issue.  Some, if not
all received fax pages end up being "cut off".  That is, there is random
garbage near the end of a fax page which is unreadable.  However,
everything above that garbage is readable & faxed fine.

 

Prior to migrating to the VG gateways, all received Hylafax faxes were
normal.  I'm thinking it has to do with the way my faxes are set up on
the Voice Gateway.  Below is my relevant config on the VG202 (the config
is identical across all the VGs).  Any ideas?  I'm using SCCP for all my
phones because I was told it was the easiest & recommended way to set up
the VoIP network.

 

version 12.4

!

stcapp ccm-group 100

stcapp

!

stcapp feature access-code

!

voice service voip

 modem passthrough nse codec g711ulaw

!

voice-card 0

!

interface FastEthernet0/0

 ip address 172.21.xxx.xxx 255.255.255.0

 duplex auto

 speed auto

!

interface FastEthernet0/1

 no ip address

 shutdown

 duplex auto

 speed auto

!

ip forward-protocol nd

ip route 0.0.0.0 0.0.0.0 172.21.xxx.xxx

!

voice-port 0/0

 timeouts initial 60

 timeouts interdigit 60

 timeouts call-disconnect 3

 timeouts ringing infinity

!

voice-port 0/1

 timeouts initial 60

 timeouts interdigit 60

 timeouts call-disconnect 3

 timeouts ringing infinity

!

ccm-manager fax protocol cisco

ccm-manager sccp local FastEthernet0/0

!

mgcp fax t38 ecm

mgcp behavior g729-variants static-pt

!

sccp local FastEthernet0/0

sccp ccm 172.21.xxx.xxx identifier 1 priority 1 version 7.0

sccp

!

sccp ccm group 100

 associate ccm 1 priority 1

!

dial-peer voice 1000 pots

 service stcapp

 port 0/0

!

dial-peer voice 1001 pots

 service stcapp

 port 0/1

 

 

________________________________

Hyoun Kim * Network Administrator I - East Division

640 Broadmor Blvd * Suite 80 * Murfreesboro, TN 37129

' 615.217.6245 * ' 859.312.6941 * 7 615.217.6255 * *
Hyoun.Kim at chartercom.com

 


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