I was wondering if there is some tool (on-line or off-line) that would play 
the tone when the typical Sipura style tone string is entered. At the moment 
to play a tone, I would temporarily paste it into the "dial tone" field 
under "Regional" settings on my ATA, pick up the phone and listen.

I'm aware of the 3am Systems - "World PSTN Tone Database" ( 
http://www.3amsystems.com:80/wireline/tone-search.htm?start=0&kCountry=184&format=Sipura ) 
which plays the tone and shows the corresponding Sipura/Linksys string but 
it would be nice to have a reverse tool in the same spirit as the very 
helpful "VOIP Dial String Parser" ( http://supremeit.com/voip/dialplan.php )

Cheers from Mike