Hello,

I'm new to ESI phone systems and just inherited a ESI-600 series. We use the trunk to trunk feature to call forward calls from our help desk extensions to our cell phones after hours. We have a PRI in place servicing the building. The calls are going through with no issues but it sounds like the volume is cut in half. If I call in on my cell, the volume is fine. If I call out to my cell, the volume is fine. It's only when we get the trunk to trunk calls that the volume is lower than expected. I'm not sure where to look. All the line levels look good and everything I've found is at the default settings.

Thoughts?

Thanks!