Mailboxes have a finite storage capacity for voicemails. It's easy enough to upgrade, but alternatively Telebroad offers an Automatic Voicemail Archiving option. Once activated, older voicemails will be archived for a set period when a mailbox is nearing capacity. The process free up space for new voicemails. With this option, your customers will always have access to agents and never encounter a frustrating message informing them a mailbox is full.