mrblackmamba343 wrote: » Do I have to add Pvdm to the router?
mikej412 wrote: » Yes, you need to install a PVDM to support VIC cards. Plus make sure you have an IOS that supports vioce.Troubleshooting Unrecognized Voice Interface Cards on Cisco 1750, 1751, and 1760 Routers - Cisco SystemsAnalog FXS and FXO hardware support on Cisco 175x platforms - Ciscowiki