Call forwarding basics
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.
If you've never set up call forwarding before, or if you've done it a thousand times but got confused by something, this is the plain-English explainer.
What is call forwarding?
Call forwarding is a feature built into almost every phone service - wireless carriers, landlines, and business VoIP systems. When enabled, calls to your number ring somewhere else instead. You can use it to route calls to a colleague, your cell, a call center, an answering service, or an AI receptionist like Human Add AI.
The thing that forwards is your number, not your device. Callers still see your business number. They never know the call was routed - it just rings somewhere else.
Unconditional vs. conditional forwarding
There are two major flavors:
Unconditional forwarding ("Forward Always")
Every call, no matter what, routes to the destination. Your own phone never rings. Most common star code: *72 to enable, *73 to disable. On GSM carriers (AT&T, T-Mobile) it's often **21*NUMBER#.
Use unconditional when: you're out of the office, you want an AI to handle every call, or you're on vacation.
Conditional forwarding
Calls only forward in specific situations. Three sub-types:
- On busy - forward when your line is already on a call. Code varies (often
**67* or *90).
- On no-answer - forward after the line rings X times without pickup. Often
**61* or *92.
- On unreachable - forward when the phone is off, out of service, or not connected to the network. Often
**62*.
Use conditional when: you want to answer calls yourself when you can, and only forward the ones you miss.
How long does it take to kick in?
For star codes: immediately. You dial the code, hear a confirmation tone, it's live.
For VoIP portals (RingCentral, Dialpad, 8x8, etc.): usually 30 seconds to 2 minutes after you save. Sometimes requires signing out and back into the mobile app.
Always test from a different phone after you set it up. That's the only way to be sure.
What does call forwarding cost?
On modern unlimited plans: nothing. Every major US wireless carrier (Verizon, AT&T, T-Mobile) includes forwarding free on unlimited plans. Forwarded calls don't count against any minute bucket because unlimited plans don't have minute buckets.
On limited-minute plans (pay-as-you-go, some business plans): forwarded calls may consume your minutes on both the inbound leg (ringing in) and the outbound leg (routing to the forward destination). Worth checking.
On business VoIP plans: forwarding to US destinations is almost always free. Forwarding to international numbers often has a per-minute charge.
On landlines: usually a small monthly add-on ($2 - 5/mo) unless you have a bundled business package.
The "which number rings" question
One thing that confuses people: when you forward calls, your caller ID still shows the original caller, not your number. So if a customer calls your business line 555-BUSINESS, and you've forwarded that to an AI receptionist at 555-AI-RECEPT, the AI sees "incoming call from 555-CUSTOMER." It does not see "incoming call from 555-BUSINESS." This matters for how your AI greets people, for call tracking, and for CRMs.
Common gotchas
- Voicemail still picks up. Your voicemail delay might be shorter than your no-answer forwarding delay. Use Forward Always (unconditional) to bypass voicemail entirely, or set your voicemail delay longer than your forward timer.
- "Do Not Disturb" kills forwarding. On many phones, enabling DND sends calls straight to voicemail without triggering the forward. Turn DND off when you want forwarding active.
- You forgot you enabled it. Especially on star codes - the phone doesn't visually indicate forwarding is on (some phones do, most don't). If you're suddenly not getting calls, dial
*73 to cancel forwarding just in case.
- The destination is unreachable. If the number you're forwarding to goes to voicemail or is off, the call typically goes there. Make sure the destination is something that answers reliably - which is why AI receptionists are popular: they answer 100% of the time, 24/7.
- Forwarding across carriers works. You can forward a Verizon cell to a T-Mobile cell, to a Google Voice number, to a Human Add AI phone number - it doesn't matter who owns the destination.
How to always turn forwarding off
The universal cancel code for most carriers: *73. On GSM (AT&T/T-Mobile), also try ##21# and ##004# to clear all conditional forwarding. If you're in a VoIP portal, there's usually a single "disable" toggle per number.
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 →
Related guides
Need a number to forward to?
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The honest pricing breakdown for operators
Human Add AI charges $497, $997, or $1,997 per month depending on the volume tier, with outbound calling metered at fourteen cents per minute on top of the Professional and Enterprise plans. There is no setup fee, no annual contract, no per-seat charge, no per-lead charge, and no per-call charge on inbound. The platform is intentionally priced to be a flat monthly line item that an operator can compare directly against the cost of a virtual receptionist service or the salary of a part-time in-house front desk.
The Starter tier is the right entry point for most operators. It covers a single location, up to 250 inbound calls per month, and the full conversation engine. The 250-call cap maps to a typical service business doing roughly 50 to 60 inbound calls per week. Operators expecting much higher volume should price the Professional tier, which raises the cap to 750 inbound calls per month and unlocks the multi-location routing and the CRM-deep-integration matrix.
Professional at $997 monthly is also the tier where after-hours emergency escalation routing becomes standard, where the CRM integration set covers Jobber, Housecall Pro, ServiceTitan, FieldEdge, mHelpDesk, Workiz, Salesforce, HubSpot, Pipedrive, Clio Manage, Lawmatics, MyCase, PracticePanther, Dentrix Ascend, Open Dental, Eaglesoft, Curve Dental, ServiceM8, RazorSync, and twenty other vertical-specific systems, and where the SLA-backed response time on agent tuning tightens.
Enterprise at $1,997 monthly is for operators who want the volume cap removed entirely, the dedicated agent-tuning contact, the white-label phone numbers, the on-call dispatcher priority routing, and the outbound module. The outbound module unlocks four use cases at the same fourteen-cents-per-minute rate: missed-call callback (the highest-ROI use), appointment reminders (24 hours before the booked time), post-service review collection, and lead nurture for prospects who asked for information but did not book on the first call.
Common questions from service business operators
What does the caller actually hear when they dial my line?
The caller hears a custom greeting in the voice you picked during onboarding (warm, professional, or fast), followed by the agent asking how it can help. The conversation flows naturally, not as a menu tree. The agent introduces itself as part of your team on Starter and Professional plans, and uses your business name as the caller-facing identity on the Enterprise white-label tier. There is no holding music, no "press 1 for sales", and no robotic cadence.
How does the booking calendar integration handle conflicts?
The agent reads live availability against your calendar in real time, which means it never offers a slot that is already taken. If the calendar update happens between the moment the agent reads availability and the moment it confirms the booking (the rare race condition), the platform's conflict handler reverts the booking, texts the operator with both calls, and lets the operator decide which one keeps the slot. In practice this happens roughly once per ten thousand bookings.
What integrations exist for sending the lead summary to my CRM?
Native integrations cover Jobber, Housecall Pro, ServiceTitan, FieldEdge, mHelpDesk, Workiz, RazorSync, ServiceM8 in the field-service world, Salesforce, HubSpot, Pipedrive, Zoho, Close, Copper in the horizontal CRM world, Clio Manage, Lawmatics, Lawyaw, MyCase, Practice Panther, Smokeball in legal, Dentrix Ascend, Open Dental, Eaglesoft, Curve Dental in dental, and twenty other vertical-specific systems. Webhook handoffs cover everything else.
How does the platform handle emergency calls?
Emergency triage is configured during onboarding. The agent recognizes emergency signals in the caller's wording (specific keywords for the vertical, urgency tone, and explicit "this is an emergency" statements), routes the call directly to the on-call dispatcher number, and sends a high-priority SMS in parallel so the dispatcher can see the lead even if they miss the call. The emergency routing happens within the same call (no callback delay), which is critical for service business operators where the first business to answer wins the job.
What does the dashboard show?
The dashboard surfaces every inbound call (with searchable transcripts and recorded MP3), every booking, every SMS lead alert, the recovered-revenue math against your reported average ticket size, the conversion rate from call to booked appointment, the agent's confidence score per call, and the weekly summary email metrics. Operators on Professional and Enterprise also see the multi-location split and the outbound-call meter.
What is the SLA on agent tuning if something needs to change?
Standard tuning requests (script edits, new intake questions, calendar rule changes) are turned around inside 24 business hours on Starter, inside 8 business hours on Professional, and same-business-day on Enterprise. Operators can also self-serve most edits through the dashboard's knowledge base section, which propagates to the live agent within minutes.
How do I know it is actually working?
The weekly summary email shows the count of inbound calls, the count of bookings, the count of SMS lead alerts, the count of qualified leads texted to the dispatcher, and the recovered-revenue math based on the average ticket size reported during onboarding. The dashboard also has a "before / after" comparison view that runs against historical voicemail patterns if the operator imports them, so the lift is visible in dollar terms not just call counts.
Can I try it before committing?
Yes. The public demo line at (617) 812-5251 runs the production agent for a generic service business. Call from any phone and run a real scenario (an actual customer question, an actual scheduling constraint, an actual edge case). The agent will answer, qualify, and offer a real booking slot. The demo gives a faithful preview of what your own customers would experience. No signup, no form, no email collection on the demo path.
What changes after the first month on the platform
After thirty days on Human Add AI, three things have changed for the typical operator. First, the recovered-revenue math has compounded into a concrete dollar number that the operator can see in the dashboard and in the bank account. For most single-location service businesses, the first-month recovered revenue lands between $6,000 and $25,000, against a $497 to $997 plan cost. The platform has paid for itself many times over, and the operator mental model has shifted from "evaluating a new vendor" to "operating a critical revenue tool".
Second, the agent has been tuned to the specific cadence of the business. Tuning continues forever (every business evolves, every season brings new call patterns, every new service line needs new intake questions), but the bulk of the agent customization is done in the first 30 days. After that, the operator can edit the knowledge base from the dashboard for most changes and only needs to ping the Human Add AI team for the larger script revisions.
Third, the operator has started thinking about the second-order use cases the platform unlocks. Outbound missed-call callback usually goes live in month two for operators on Professional or Enterprise. Appointment reminder calls usually go live in month three. By month four, the platform is doing both inbound and outbound work that previously required either a part-time staffer or a separate scheduling service, and the operator is running a tighter business with the same overhead.
