How to Forward a Business Phone to a Cell Phone

The right forwarding method depends entirely on which service answers your business line. A Verizon wireless line, a Verizon business landline, and a hosted VoIP product all use different steps, and using the wrong code simply will not work. Check your monthly bill, your provider's welcome email, or the label on your desk phone to find the exact product name.

Once you know the product, go to that product's own instructions. Carrier support sites often publish several guides side by side, and a code that works on one product may do nothing on another.

• Find the exact product name on your bill or account portal, not just the carrier name.
• Note whether the line is a wireless line, a landline, or a hosted VoIP seat.
• Check whether your provider manages features through star codes, a web portal, or both.

Many carriers activate forwarding with a short code dialed from the line itself. The pattern is usually: dial the code, then the 10-digit destination number, then wait for confirmation. Here are verified examples for specific products:

Always test with a real call after activating. Most guides confirm forwarding by having the destination phone answer, or by listening for a confirmation tone before hanging up.

• Verizon mobile: dial *72 plus the 10-digit destination to forward all calls; *71 plus the destination forwards unanswered calls; *73 disables. Setup must be done from the mobile phone while in Verizon coverage.
• Verizon business landline: dial *72 and follow the activation instructions; dial *73 from the same line to deactivate.
• T-Mobile: dial **21*1 followed by the 10-digit destination and # to forward all calls; ##21# disables. **61*1 plus destination # covers no-reply calls, **62*1 covers unreachable, and **67*1 covers busy, each disabled with ##61#, ##62#, or ##67#. ##004# resets forwarding to defaults.
• AT&T Phone for Business: dial *72, the destination, then # for all calls; *73# turns it off. No-answer forwarding uses *92 plus destination and #, disabled with *93#; busy forwarding uses *90 plus destination and #, disabled with *91#.
• AT&T Collaborate: *72 plus destination enables always forwarding and *73 disables; *62 plus destination enables busy forwarding (*63 disables) and *92 plus destination enables no-answer forwarding (*93 disables). These codes apply only to Collaborate.
• Comcast Managed Voice (Panasonic TPA65): lift the handset, dial *72 and the destination, then replace the handset; *73 disables. *92 plus destination sets no-answer forwarding and *90 plus destination sets busy forwarding.
• Optimum Business Phone (per its user guide): dial *72, wait for dial tone, then dial the destination. The destination answering confirms forwarding. *73 turns forwarding off.
• Frontier Unlimited Digital Voice: lift the handset, dial *72, wait for a second dial tone, enter the destination, and listen for confirmation; *73 disables. C Spire: dial *72 plus the 10-digit destination and press Call; *73 then Call disables.

Some hosted and VoIP products manage forwarding through an online dashboard instead of star codes. Spectrum Business Voice, for example, has you sign in to SpectrumBusiness.net with an account role that can manage voice, open Voice, choose the phone number, then use Voice Settings or the Forwarding Manager to enable forwarding, pick all calls or busy/no-answer, and set the destination. Vonage Business Communications lets you select Call Forwarding and enable forwarding to a phone number. Comcast Business manages features like forwarding through My Account and the Comcast Business App, depending on the services you subscribe to.

Windstream OfficeSuite UC uses the WE Connect Dashboard: open the My Call Forwarding widget, choose Call Forwarding (Immediate), select Another Phone, enter the 10-digit destination, and save. To turn it off, choose None and save. For unanswered calls, the same widget lets you set the number of rings and forward to another phone number.

If you cannot find a code or a portal setting, call your provider's business support and ask them to walk you through forwarding for your exact product.

• Spectrum Business Voice: manage forwarding in Voice Settings or Forwarding Manager after signing in with an allowed role.
• Vonage Business Communications: select Call Forwarding and enable forwarding to a phone number, then verify with an outside call.
• Comcast Business: features depend on your subscribed services and are managed through My Account or the Comcast Business App.
• Windstream OfficeSuite UC: use the My Call Forwarding widget in the WE Connect Dashboard for immediate and no-answer forwarding.

All-call (unconditional) forwarding sends every incoming call to your cell immediately. Your desk phone stops ringing entirely. This is the simplest setup, but it also means you will get work calls at all hours unless you remember to switch it off.

Conditional forwarding only redirects calls in specific situations: when the line is busy, when nobody answers after a set number of rings, or when the phone is unreachable. This lets the desk phone ring normally during business hours while still catching calls you miss. Not every product or plan supports every condition, so confirm with your carrier which options exist on your line.

One more thing to know: on several landline products, all-call forwarding overrides voicemail forwarding and any hunt-group routing, so calls will not ring other extensions or reach the old voicemail while forwarding is on.

• All-call forwarding: every call goes straight to the cell; the original line stops ringing.
• Busy forwarding: redirects only when you are already on a call.
• No-answer forwarding: redirects after a set number of rings, letting the desk phone ring first.
• Unreachable forwarding: covers when the phone is off or out of service.
• Check whether forwarding overrides voicemail or hunt groups on your product before relying on it.

After activating, place a test call to your business number from a different phone and confirm it rings on your cell. If nothing happens, re-enter the code or portal setting and check that you dialed the full 10-digit number. Some carriers require activation from the line itself or while in coverage, and charges can depend on your plan.

To stop forwarding, dial the disable code from the same line (usually *73, or the ## codes on T-Mobile) or switch it off in the same portal where you turned it on. It is a good habit to disable forwarding at the end of the day if you used all-call forwarding, so after-hours callers reach your normal voicemail instead of your personal cell.

• Test with a real call from another phone after every change.
• Dial the disable code from the same line you used to activate.
• Re-check forwarding after power outages, phone swaps, or provider maintenance.
• Remember that forwarding applies to calls, not text messages.

Forwarding works well when you can answer, but it sends every call to one person: you. If you are on another call, driving, or with a customer, the caller goes to your personal voicemail, and you have no record of who called or what they needed. There is also no way to sort real opportunities from spam.

An answering service takes a different approach: calls are answered in your business name, messages and details are captured, and you review them when convenient. AllDayDesk, this site's product, is an AI receptionist that answers calls around the clock using your saved business information. You keep your existing business number by forwarding calls to it, using the same carrier steps above. Setup involves choosing your business or entering its website, checking the details it found, hearing a personalized sample, and choosing your phone setup. Calls, transcripts, summaries, and bookings show up in your dashboard, and new appointments go to the built-in AllDayDesk calendar once you have configured services and availability, with an optional Google Calendar connection available in Settings after you connect and authorize your account. When the answer, price, or appointment time is unknown, it takes a message instead of guessing.

If you would rather compare human-staffed options, note that human virtual receptionist services exist at a range of price points and coverage models; costs depend on the provider, included allowance, and hours, so request current quotes before deciding.

• Forwarding sends every call to one phone with no call details captured.
• An answering service answers in your business name and records messages you can review.
• AllDayDesk answers around the clock using your business information and keeps your existing number through forwarding.
• Existing appointment changes come through as requests for you, not confirmed changes.
• Transfers to you require you to configure a destination and rules; pickup is not guaranteed.