====== CAS ======

====== T1 CAS ======
 * Configure T1 card
<code>
card type t1 0 0
network-clock-participate wic 0 
!
controller T1 0/0/1
  framing esf
  linecode b8zs
</code>

===== H.323 or SIP =====
  * Divide up T1 CAS channels
    * e&m-fgd - to receive ANI
    * fgd-eana - to send ANI
<code>
controller T1 0/0/1
  ds0-group 0 timeslots 1-5 type e&m-fgd
  ds0-group 1 timeslots 6-10 type fgd-eana
</code>

  * The following voice ports will be connected
    * voice-port 0/0/1:0 - for ds0-group 0
    * voice-port 0/0/1:1 - for ds0-group 1
<code>
voice-port 0/0/1:0
  timing dialout-delay 300
!
voice-port 0/0/1:1
  timing dialout-delay 300
</code>

  * Configure Dial Peer to voice port
<code>
dial-peer voice 1 pots
  destination-pattern .T
  incoming called-number .
  direct-inward-dial
  port 0/0/1:1
</code>

===== MGCP =====
  * MGCP only support e&m-wink-start?
<code>
controller T1 0/3/0
  ds0-group 0 timeslots 1-2 type e&m-wink-start
</code>

  * The following voice port gets created
<code>
voice-port 0/3/0:0
 echo-cancel enable type hardware
</code>

  * Make sure the first dial-peer is configured with service mgcp
<code>
dial-peer voice 1 pots
  service mgcpapp
  port 0/3/0:0
</code>

  * Configure MGCP parameters
<code>
hostname ccie-srst-gw
!
ccm-manager switchback immediate
ccm-manager fallback-mgcp 
ccm-manager redundant-host <cucm-pub>
ccm-manager mgcp
ccm-manager music-on-hold
!
mgcp
mgcp call-agent <cucm-pub> service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
no mgcp timer receive-rtcp
!
</code>

  * Required to support SRST?
<code>
application
  global
    service alternate Default
</code>

  * Add MGCP gateway as normal
{{gw-cas1.png|}}

  * Add port as Digital Access T1
{{gw-cas2.png|}}

  * Configure MGCP gateway
{{gw-cas3.png|}}

  * Add new port
{{gw-cas4.png|}}

  * Select port type as EANDM
{{gw-cas5.png|}}

  * Configure 
    * start and end ports
    * Port direction
    * Calling Party Selection
    * Num Digits - number of digits to strip down to?
    * Expected Digits - this seem to have to match the number of digits coming in as DNIS?
{{gw-cas6.png|}}

====== E1 CAS ======
 * Configure E1 card
<code>
card type e1 0 0
network-clock-participate wic 0 
</code>

===== H.323 or SIP =====
  * Divide up E1 CAS channels
<code>
controller E1 0/0/1
 ds0-group 0 timeslots 1-10 type r2-digital r2-compelled ani
 cas-custom 0
  timer interdigit incoming 1000
</code>

  * The following voice ports will be created
<code>
voice-port 0/0/1:0
</code>

  * Configure Dial Peer to voice port
<code>
dial-peer voice 999 pots
 destination-pattern 999
 no digit-strip
 port 0/0/1:0
!
dial-peer voice 2 pots
 destination-pattern .T
 port 0/0/1:0
</code>