There are many reasons why we like Grandstream's UCM IP PBX systems. They are Asterisk based, have a very intuitive front end for easy navigation, especially for admin that comes from a computer based background rather than a telephony background, and are very affordable. Without sacrificing features or quality, a small to medium sized company can purchase an IP-PBX that will handle their phones with more features than most companies need and also control all their SIP endpoints (cameras, facility management, etc.). Matched with Garndstream phones, which have a long good history of being dependable reliable phones, installation and configuration is easy. However, these are not the only reasons; those that need assistance through guides, forums and helpful video tutorials (which is just about everyone) have a community of assistance from Grandstream.
After accessing the default web GUI login page enter default administrator
username “admin” and password. Units manufactured starting January 2017 have a unique random password printed on a sticker attached to the appliance. Older units manufactured before January 2017 will have a default password of “admin”.