Rollover Hunting is a feature that is managed by the Account Manager or Phone Manager. It allows incoming calls to your primary phone line to roll over to the next available line and, if al l lines are busy or not answered, the call can roll over to voicemail. It will hunt through all lines in the group once to find an idle line. You can configure multiple hunt groups and the number of rings before the call is routed to the next li ne. Each hunt group must have a minimum of two lines and a unique primary number. There are three hunt sequence options:
In 2016, Matt Rayner of Liquid11 wrote that the 10,000 or so companies Liquid11 serves missed an average of around 22 percent of inbound calls. This data included businesses of all sizes, including enterprise-level organizations.‍

Optimum is the first landline telephone service provider in the U.S. to launch High Definition calling. HD calling is the next generation of voice technology that gives you less background noise, sharper sound quality and increased clarity in your phone conversations. To experience HD calling, customers and call recipients must subscribe to Optimum Voice and use HD-capable handsets.
Other employees can set up extension mailboxes individually; however, an office administrator can set up two or more mailboxes and navigate between them.