1.
　　controller e1 number
　　Specify the E1 controller that you want to configure with R2 signaling.
　　2.
　　cas-group channel timeslots range type signal
　　Replace the signal variable with any of the following choices under R2 analog, R2 digital, or R2 pulse.
　　r2-analog [dtmf r2-compelled [ani] r2-non-compelled [ani] r2-semi-compelled [ani]]
　　or
　　r2-digital [dtmf r2-compelled [ani] r2-non-compelled [ani] r2-semi-compelled [ani]]
　　or
　　r2-pulse [dtmf r2-compelled [ani] r2-non-compelled [ani] r2-semi-compelled [ani]]
　　Configure R2 channel associated signaling on the E1 controller. For a complete description of the available R2 options, see the cas-group (controller e1) command.
　　The R2 part of this command is defined by the signal variable in the cas-group (controller e1) command.
　　3.
　　cas-custom channel
　　Enter cas-custom mode, which enables you to localize some of the E1 R2 signaling parameters, sUCh as a specific R2 country settings for Hong Kong. For the customizing to take effect, the channel number used in the cas-custom command must match the channel number specified by the cas-group command.
　　4.
　　country name use-defaults
　　Specify the local country, region, or corporation specification to use with R2 signaling. Replace the name variable with one of the supported country names. Cisco strongly recommends that you include the use-defaults option, which enables the default settings for a specific country. The default country setting is ITU.
　　
　　See the cas-custom command in the Dial Solutions Command Reference for the list of supported countries, regions, and corporation specifications.
　　5.
　　ani-digits
　　answer-signal
　　caller-digits
　　category
　　country
　　default
　　dnis-digits
　　invert-abcd
　　ka
　　kd
　　metering
　　nc-congestion
　　unused-abcd
　　request-category