Human Add AI help center covers call forwarding setup for every major US carrier (Verizon, AT and T, T-Mobile, Spectrum, Comcast, RingCentral, Google Voice, OpenPhone, and twelve more), PWA install instructions for the mobile dashboard, knowledge base editing, and account management. Most setup guides take under five minutes to complete.
8x8 forwarding lives in the Admin Console for business accounts and in the 8x8 Work app for user-level changes. This guide covers both, plus auto-attendant routing.
The quick version
Sign in to the 8x8 Admin Console at login.8x8.com, go to Users (or Auto Attendants for main lines), open Call Forwarding, and add the external destination.
Step-by-step: set up call forwarding in 8x8
1
Sign in to the 8x8 Admin Console at login.8x8.com. Standard users can change their own forwarding from the 8x8 Work app; admins can edit anyone's.
2
For a user extension: Users → pick the user → Call Forwarding. For a main company number: Auto Attendants → pick the menu → edit the routing rule.
3
Enable the appropriate rule. 8x8 offers Forward Always, Forward When Busy, Forward When No Answer, and Forward When Not Registered. For an AI receptionist, Forward Always is usually what you want.
4
Enter the destination number. 8x8 accepts 10-digit US numbers directly - no country code needed.
5
Save the rule. Changes apply within about 30 seconds.
6
Test by calling your 8x8 number.
Alternative: 8x8 Work app (desktop/mobile)
In the 8x8 Work app: Settings → Calls → Call Forwarding. Toggle on, enter the number, save. Good for users who want to change their own forwarding without admin access.
Things worth knowing
8x8 supports concurrent forwarding ("Simultaneous Ring") where your cell and the forwarded number both ring - useful during the transition period when you're not sure how much you trust the AI.
Forwarded minutes count against your 8x8 plan's outbound allowance. Most 8x8 Express and X-series plans are unlimited to US destinations.
If you use 8x8 Contact Center (not just PBX), forwarding rules live in a different place - Configuration Manager → Channels → Inbound. The AI can still be the destination.
Forwarding to an AI receptionist?
The whole reason you're reading this is probably to stop missing calls. If you're setting up call forwarding to send calls to a voice assistant, an answering service, or an AI, the steps above are the same - you just enter their number as the forward-to destination. Human Add AI gives you a dedicated AI receptionist that answers 24/7, captures every caller's intent, and texts you the details. Try it free for 7 days →
Troubleshooting
Calls still ring the old way. Most VoIP systems take 30 - 60 seconds to apply forwarding changes. Wait and test again. If it still doesn't work, sign out and back in, or restart the desk phone.
You saved the rule but don't see it. 8x8 usually applies rules to one specific number or extension. Make sure you're editing the right one - business accounts often have multiple numbers on the same login.
Callers hear "number not in service." Double-check the destination number you entered. 8x8 often requires the full 10-digit US format, sometimes with a +1 prefix.
You want some calls to stop forwarding. Most 8x8 plans support conditional rules (forward only after X rings, forward only from Y caller ID, etc.). Look for "Advanced" or "Rules" in the forwarding settings.
Every Human Add AI trial gives you a dedicated local phone number with a fully custom AI receptionist on the other end. Free for 7 days, $10 refundable activation.
Starter is $497 a month for up to 200 calls, with one AI assistant and one business number. Professional is $997 a month for unlimited calls and up to 3 AI assistants, and connects to your CRM (the software you track customers in). Enterprise starts at $1,997 a month. Every plan answers 24/7, books appointments and texts you each lead. Start with a 7-day free trial ($10 activation fee, credited to your first bill), backed by a 30-day money-back guarantee. See full pricing or call the demo line at (617) 812-5251.
What launch week looks like in practice
Launch week (the first seven days after the agent goes live on the forwarded line) follows a predictable pattern that the Human Add AI team has now run hundreds of times. Day one and day two are the noisy days: the agent is handling every inbound call, the operator is double-checking the SMS alerts and the calendar bookings, and a few edge cases come up that need quick tuning. The Human Add AI team is monitoring a random sample of calls and pushing live adjustments to the agent script for any awkward patterns.
By day three and day four, the noise drops sharply. The agent is handling the common call patterns smoothly, the bookings are landing on the calendar without manual intervention, and the operator is starting to ignore the SMS alerts because they trust the system. The first emergency-routing scenario usually hits in this window, and the operator sees the on-call dispatcher get the high-priority SMS within seconds of the agent recognizing the emergency signal in the caller voice.
By day five, six, and seven, the system is fully baseline. The operator stops thinking about the phone at all. The weekly summary email on day seven shows the first concrete recovered-revenue number: the count of bookings that came from calls outside business hours, the dollar value attached to those bookings using the average ticket size from onboarding, and the comparison against the historical voicemail pattern. For most operators that number lands somewhere between $2,000 and $8,000 in recovered revenue for the first week alone.
The honest evaluation timeline
The honest evaluation timeline for an operator deciding whether to install Human Add AI looks something like this. Day zero: call the demo line at (617) 812-5251 from any phone and run a real scenario. The demo takes about ninety seconds and gives a faithful preview of conversation quality. If the conversation quality passes the bar, proceed. If it does not, the operator has saved themselves the rest of the evaluation. Day one: fill out the ten-minute onboarding form. This creates a custom test agent for the specific business, which is free to use during evaluation.
Day two: the Human Add AI team builds the test agent and ships back recorded test calls. The operator listens to the samples, requests any adjustments, and decides whether to proceed. Day three: the operator forwards a test line (a Google Voice number, a secondary business line, or a fresh Twilio number) to the agent and runs a week of real test calls. Day ten: review the test-week data in the dashboard, compare recovered-revenue against the plan price, and decide whether to forward the real business line.
For operators who already know they have a missed-call problem, the evaluation usually collapses into a much shorter window: call the demo, fill the onboarding form, hear the recorded samples, forward the business line. Most operators who go this path are live and recovering missed-call revenue inside 72 hours of first hearing the demo.
