Phones of the Day: Nortel M5316 Centrex telephones and 1140E IP Telephones at the US Capitol Building

It looks as though the US Capitol has quite an extensive array of Nortel Centrex telephones on premises.  Please see the following screen shots I grabbed.

The building also contains quite a few Lucent/Avaya 8400 sets as well but I am showing pics of the Nortel phones today.