Ring Groups and voicemail

[lgaetz (Lorne Gaetz)]

Probably same issue as described here, ring groups don’t answer the channel:

Ring Group Bailing Early

Calls to a ring group don’t answer the channel and your provider probably requires the call to be answered before x seconds. There are options in the Inbound Route to enable Signal Ringing and Force Answer, one the other or both of those options may allow your ring group to work as expected.