Re: failed because No carrier detected?

[David Woolley <david@djwhome.demon.co.uk>]

> May 28 06:05:53.49: [ 3600]: DIAL 6653493
> May 28 06:05:53.49: [ 3600]: <-- [12:ATDT6653493\r]
> May 28 06:06:49.47: [ 3600]: --> [10:NO CARRIER]

This looks like a trivial failure (wrong number, answered by human,
answered by telephone company announcement).  Do you have any 
evidence that it is more than this?