Cisco 2811 w/ FXS & PRI faxing questions

Attached is the config from the router. Basically I have the FXS ports with assigned DIDs, but want to tweak a few things.
- Is there a way to do fail over on the lines. i.e. 3340 is currently sending or receiving a fax, so I want it to roll over to 3341. I want to do this all locally on the routers config.
- I want to overide the FXS ports and force them to only use the local PRI for outgoing calls, rather than getting routed through the call manager and going to another office if its a local number.
- Are there any other common settings I need to have in place for reliable faxing? It does seem to be hit or miss currently.

Thanks,

voice service voip 
 allow-connections h323 to h323
 h323
  h450 h450-2 timeout T1 1000
  h450 h450-3 timeout T1 1000
!
!
voice class codec 100
 codec preference 1 g711ulaw
 codec preference 2 g729r8
 codec preference 3 g729br8
!
voice class codec 1
 codec preference 1 g711ulaw
 codec preference 2 g729r8
!
!
!
!
voice class h323 10
  h225 timeout setup 5
!
voice class h323 1
  h225 timeout tcp establish 3
  h225 timeout setup 2
  call start slow
  telephony-service ccm-compatible
  no ccm-compatible
interface Serial0/0/0:23
 no ip address
 encapsulation hdlc
 isdn switch-type primary-ni
 isdn incoming-voice voice
 isdn supp-service name calling
 isdn sending-complete
 no cdp enable
voice-port 0/0/0:23
!
voice-port 0/1/0
 no battery-reversal
 output attenuation 2
 description PA System (ext.3390)
!
voice-port 0/1/1
!
voice-port 0/1/2
!
voice-port 0/1/3
!
voice-port 0/3/0
 description Konica C250 Fax Line
 caller-id enable
!
voice-port 0/3/1
 description Savin Fax Line
 caller-id enable
!
voice-port 0/3/2
 description Eng Dialup Line
 caller-id enable
!
voice-port 0/3/3
 description Extra Analog Voice Line
 caller-id enable
!
ccm-manager redundant-host 192.168.101.10
ccm-manager mgcp
ccm-manager fax protocol cisco
ccm-manager music-on-hold
ccm-manager config server 192.168.101.10 192.168.101.11 
ccm-manager config
!
mgcp
mgcp call-agent 192.168.101.11 2427 service-type mgcp version 0.1
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
no mgcp package-capability res-package
no mgcp package-capability fxr-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 ecm
mgcp fax t38 inhibit
mgcp rtp payload-type g726r16 static
!
mgcp profile default
!
!
!
dial-peer voice 1 voip
 preference 1
 destination-pattern 32...
 progress_ind setup enable 3
 voice-class codec 100
 session target ipv4:192.168.101.10
 incoming called-number .
 dtmf-relay h245-alphanumeric
 no vad
!
dial-peer voice 2 voip
 preference 2
 destination-pattern 32...
 progress_ind setup enable 3
 voice-class codec 100
 session target ipv4:192.168.101.11
 incoming called-number .
 dtmf-relay h245-alphanumeric
 no vad
!
dial-peer voice 3 voip
 preference 1
 destination-pattern 33..
 progress_ind setup enable 3
 voice-class codec 100
 session target ipv4:192.168.101.10
 incoming called-number .
 dtmf-relay h245-alphanumeric
 no vad
!
dial-peer voice 4 voip
 preference 2
 destination-pattern 33...
 progress_ind setup enable 3
 voice-class codec 100
 session target ipv4:192.168.101.11
 incoming called-number .
 dtmf-relay h245-alphanumeric
 no vad
!
dial-peer voice 50 pots
 preference 1
 destination-pattern 9T
 direct-inward-dial
 port 0/0/0:23
!
dial-peer voice 20 pots
 destination-pattern 3390
 port 0/1/0
 forward-digits 0
!
dial-peer voice 40 pots
 description Konica C250 Fax Line
 destination-pattern 3340
 port 0/3/0
 forward-digits all
!
dial-peer voice 41 pots
 description Savin Fax Line
 destination-pattern 3341
 port 0/3/1
 forward-digits all
!
dial-peer voice 42 pots
 description Eng Dialup Line
 destination-pattern 3342
 port 0/3/2
 forward-digits all
!
dial-peer voice 43 pots
 description Extra Analog Voice Line
 destination-pattern 3343
 port 0/3/3
 forward-digits all
!
!
!
!
call-manager-fallback
 secondary-dialtone 9
 max-conferences 8 gain -6
 transfer-system full-consult
 timeouts interdigit 5
 timeouts ringing 24
 ip source-address 192.168.108.9 port 2000
 max-ephones 42
 max-dn 100
 system message primary CM Fallback
 system message secondary CM Fallback
 transfer-pattern 9T
 keepalive 10
 default-destination 3300

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