Sometimes when you call a company you end up in their menus, and you have to push 1, 2, 5, #, etc. to navigate their phone system.

However, sometimes my PhonerLite does not send the tones.  I have to restart PhonerLite and do the call over again in hopes that it can send the tones on the next try.  When I push the button it types the number in the phone number box but doesn't transmit any sound.  It is intermittent, and I haven't figured out a pattern to the malfunction.

It's not on just my PhonerLite, but on another computer's PhonerLite, too.

Is this known, or does anyone else have this problem, or is there a way to fix it?