It occurred to me that some of the time voicemail pops up in our company support box, but my desk phone doesn’t ring.
To test, I use my cell phone to call in and press our support line button and it always rings. I cant simulate the error. However, it is a daily occurrence. I sit by the phone all day, it it rarely rings, voicemails show up.
Here and there clients have made this observation about their own asterisk systems, and are looking for a resolution. This phenomenon apparently affects a wide swath of versions and scenarios.
Ive been working on systems for the past 5 years or so, but I cant explain why it would do that.