I have provided logs in previous posts.
In this report, I provided the most detailed debugging info possible:
Additionally, I provided info that the work-around (parking the call using *2 XXXX) causes the issue to disappear entirely. This pretty well isolates the problem to Digium/Sangoma’s proprietary code.
The phones don’t provide a lot of debugging info to tell why the issue is occurring, and honestly…it’s not realistic to expect anyone to debug their proprietary code.