Static when trying to use Zoom conference numbers

[cl15219]

Obi200 device using Google Voice.  Original configuration on the device, no changes made.  When trying to dial a Zoom Video conference number, the auto attendant answers, and I enter my meeting code, then pound, and about 80% of the time the call turns to static and I have to hang up.  There are two numbers for zoom, +1 646 558 8656 +1 720 707 2699.  The 646 number almost always causes static, the 720 number only once out of 10 times did.

Any idea?

[Jim.pa]

I have had the same problem when attempting ANY conference call - Same setup - GV and Obi200.  When I attempt to add the second party, I am successful or rare occasions.  Most of the time, I just get a loud static.    I can't even return to the first party.  My process is:

1. Dial first party
2. Flash
3. Dial second part
4. Flash again and hear static,

Any suggestions?