Setting up 1751V router

Unanswered Question
Aug 12th, 2010
User Badges:

Hi All,

I am in the initial phase of setting up a 1751V with 2 port FXO and 2 port FXS card to use with Cisco CME. Router has got 32M Flash and 256K PVDM. Please find the attached output of "show version" and "show INV" for your analysis.

The issues is that router is not detecting both FXO and FXS cards at the same time and one voice card ends up with the amber lights lit after booting up the router. It only picks up one card at a time whoever is installed in the lowest slot of the router and the other can't be seen in "sh voice port summary".

Any suggessions please?



  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Matthew Kaufman Mon, 08/16/2010 - 11:23
User Badges:
  • Cisco Employee,

How many DSP's do you have installed? By default with High Codec complexity, one dsp module will only support 2 analog voice ports, so check the number of DSP's.


paolo bevilacqua Mon, 08/16/2010 - 11:27
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    Founding Member

Already posted (and answered§) in another area, please do not post duplicates.


This Discussion