13-Point Voicemail Blocking Checklist for Business Lines

Voicemail blocking happens when callers cannot leave a message after you miss a call. Start by setting ring time to 20–30 seconds (about 4–6 rings), then check who “owns” voicemail (carrier vs VoIP), and make sure busy, no-answer, and after-hours routes all end in a real mailbox, not hang-up. Re-initialize the mailbox and confirm it is not full. Next, test from two outside phones using a simple 2-minute script to verify callers can record and you receive the message. If you recently ported numbers, changed providers, or calls ring then drop with no voicemail option, call your carrier to confirm voicemail provisioning and routing.

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