Hello Friends,Can you help me with one of the issue that I am facing currently.When ever I am dialing the numeber from external network it's hitting my gateway but won't able to hear the ringback.On gateway provider is sending correct digit.Normally ...

                   I have Cisco 2800 series router.                   When I am trying to write memory getting error message  " Error opening flash:config-backup-1 (No more root directory entries available)"                                     When t...