20 Dec 1986 03:39-EST
First, doing packet switching on top of circuit switching is actually
not a bad idea and I know of at least one packet vendor whose
switches internally have a built-in circuit switch to allow the
pt-pt topology of the network to be altered under the control of the
About the DCTN, if it is ISDN-like, won't it be entirely digital?
If so, I assume the only reason for the channel bank is to go from
D to A to the analog telephone and maybe on-post analog (?) PBX?
Doesn't the post have alternative, digital radio (?) links to, say,
the townCO or to the long-lines termination, in addition to the
buried cable? It doesn't seem prudent to put all the channels
on the buried cable...
This archive was generated by hypermail 2.0b3 on Thu Mar 09 2000 - 14:37:14 GMT