Having some experience on all of the listed systems, I would go with the ESI System.

Reasons: The Comdial system is kind of dated...it is probably a DSU ? Not really capable of VOIP.

The Axxess system is a Real PIA to program and Troubleshoot

The ESI systems are Sweeeeeet. Easy for Customers AND Techs.

My 2 cents.


I can see the light at the end of the tunnel..

Retirement 2019 ( It has happened )