On Mon 10 Jun at 15:14 Peter Collis (3:713/914.16) wrote to Arthur Marsh:

 AM> No, but it shows that dial tone detection also fails in 
 AM> some supposedly mature modem designs.

 PC> Guess so though with all the differing exchanges about who 
 PC> knows, I can only comment on my own experences with 
 PC> about 5 different modems over the years rangeing from 
 PC> Bit Blitzer 2400 up to USR Courier with a few Netcomms 
 PC> and Dataplex in between and they all detected dial tone
 PC> just fine on both the old mechanical (i assume X-bar) 
 PC> exchange and the new AXE one we have now.

The only other modem I've used here that required dial tone detection to be
disabled was a Netcomm E5.

--- msgedsq 2.1