Hi All,  In our Environmet we have 2901 Current Ios Version is Version 15.3(3)M5As management got another fiber leased line(Single Mode) for which i have install SFP slot part number  HWIC-1GE-SFP,after installation of HWIC-1GE-SFP in router the foll...

Initially, I have tested every port of FXS module on ISR with an analog phone. Therewas ringing tone and I was able to communicate to other as normal. The secondtest involved measuring the ringing voltage on the same ports by using a pair cable and m...