My GV number ends in 2364 and I give Google Voice engineering your permission to examine my configuration and call data.

The first set of calls were performed as follows:
- This set of calls were performed over 4G/LTE with no Wi-Fi calling enabled (standard configuration).

1) 1/3/22 7:26 pm CST - from Pixel 3XL with last digits 0472 on Mint (T-Mobile MVNO)
2) 1/3/22 7:29 pm CST - from Pixel 3XL with last digits 0472 on Mint
3) 1/3/22 7:31 pm CST - from Pixel 3XL with last digits 4072 on Mint
4) 1/3/22 7:33 pm CST - from Pixel 3XL with last digits 4072 on Mint

- All calls in first set disconnect after 2 rings with no Voicemail.  There is a missed call notification within GV "Calls" section.

The second set of calls were performed as follows:
- This set of calls were performed over 3G

5) 1/3/22 7:35 pm CST - from Pixel 3XL with last digits 0472 on Mint
6) 1/3/22 7:37 pm CST - from Pixel 3XL with last digits 4072 on Mint

 - All calls in second set connect successfully to voicemail after about 5-6 rings.

The third set of calls were performed as follows:
- This set of calls were performed over 4G, but using WiFi calling enabled and verified in dialer.

7) 1/3/22 7:40 pm CST - from Pixel 3XL with last digits 0472 on Mint
8) 1/3/22 7:47 pm CST - from Pixel 3XL with last digits 4072 on Mint

 - All calls in third set connect successfully to voicemail after about 5-6 rings.

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I also just want to note that the tests requested in the other thread are only able to test the ring-disconnect issue.

Since the instructions state to disconnect all devices and linked numbers, it is not possible to perform any testing on the issue where calls/VM forwarded from the linked number to GV cause the receiving phone to ring twice (once from original call, and once to GV number).
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