// call forwarding · Landline & Cable Phone

Forward missed Landline calls to an AI receptionist

Business landlines and cable phone lines (Spectrum, Comcast Business, Cox and similar) almost all support *72 forwarding, dialed from the line itself. Business VoIP systems like RingCentral or Grasshopper are even easier: forwarding is a setting in the web portal, no codes at all.

dial this exactlythen press call
*72 <number>
Every call (dialed from the business phone). Pick up the business line, dial *72, wait for the tone, dial the number. Replace <number>with your AI receptionist's 10-digit number.

Set it up

  1. 1From the business phone itself, pick up and dial *72, wait for the tone, then dial the 10-digit forwarding number.
  2. 2When the confirmation plays, or the AI answers, forwarding is on. Hang up.
  3. 3Call the business number from a cell phone and confirm the AI answers.
  4. 4On a VoIP system (RingCentral, Grasshopper, Ooma, Nextiva and similar): log in to the provider's portal, find Call Handling or Call Forwarding, and point unanswered calls, or all calls, at the AI number. No dial codes needed.

The quirks nobody tells you

We run these setups on live business lines. These are the failure modes we actually hit.

Many landlines only support all-call forwarding
*72 sends every call to the AI; the desk phone stops ringing. Some providers also offer *92 for no-answer-only forwarding, but support varies. If ring-first matters, check with your provider, or let the AI answer everything, which is what most businesses actually want on a front-desk line.
VoIP portals beat dial codes
If your number lives with a business VoIP provider, use their portal rule instead of star codes. Portal rules are visible, survive equipment swaps, and usually offer ring-first, simultaneous ring, and time-of-day options.

Turning it off

Turn forwarding off*73

Takes effect immediately. Knowing the off switch is five seconds away makes the on switch easier to try.

the other half of the setup

A forwarding code needs something worth forwarding to

Corex's AI receptionist answers the Landline calls you miss, around the clock. It answers questions about your business, books the job, takes the message, and puts urgent callers through to you. Live in minutes with a local number, from $149 a month.

Hear it answer a live callSee how it works

Common questions

Can I forward a Spectrum or Comcast business line?

Yes. Dial *72 from the line itself, then the forwarding number. Both also expose call forwarding in their online account portals if the code does not take.

My office phone system has an auto attendant. Where does the AI fit?

Point the auto attendant's no-answer or overflow route at the AI number, or replace the attendant entirely by forwarding the main line. The AI answers, books, and takes messages, which is most of what the attendant menu was doing.