"Charlie Tester"

[NY Tel Guy]

The other interesting thing you mentioned that your wife was hearing on call waiting, is exactly what I had just updated in a ticket to support.
As with modern call waiting, you will get some sort of ring splash or tone to indicate a call wanting to come in, but the constant ringing you and I hear doesn't sound normal. I have the GS286 and before they just upgraded the firmware, the announce slpash continued throughout the entire time the caller stayed on line, making it difficult to continue the call. Since the upgrade, I now get exactly what your wife heard.
I know support has been in touch with GS, waiting for a fix.
I have an SPA2102 that I have programed up for a backup, but haven't tried it to see if the same situation exists...

I'm going to test my line now for call waiting with the Grandstream and see what happens. Full report in a few minutes.

EDIT: OK test complete. When engaged in a call, the call waiting tone in the POTS world comes in initially upon the first ring.
It then repeats a few seconds later - probably timed with the second ring cycle.

With my Grandstream (VoIPo provided) adapter - it appears that the initial tone works fine and is a combination of call waiting tone and screeching data tone (happens so the caller ID info can be passed to the display device on your phone). The difference here is that with the beginning of each ring cadence, it gives the caller that double beep with every ring. The switch parameter that controls the number of times you get a call waiting tone needs to be adjusted so it only repeats once after the initial tone.

I could see where it gets annoying. Also, to answer the waiting call, flashing the switchook answers call number 2 and places call number 1 on hold. This worked twice but it later dropped the 1st call for no good reason.

This would need to be fixed pre-launch.