The R2 trunks are supported only on an EX Controller. You can program an R2 trunk by executing the configuration files available in the Gateway Configuration Scripts form.
NOTE: You can also program the R2 trunks manually through the EX Controller Web GUI. For more information on how to program, see Appendix B Programming an R2 Trunk in the Installation and Administration Guide for EX Controller document. For further reference, refer to the DGW Software Configuration Guide at https://documentation.media5corp.com/