How to Transfer Calls from Business Phone to Cell Phone

Before you dial anything, it helps to know which kind of forwarding you want. Picking the wrong type is the most common reason people think forwarding is broken.

Unconditional (all calls) forwarding sends every incoming call straight to your cell. Your desk phone will not ring at all while it is on. Conditional forwarding only sends calls in certain situations, such as when the business line rings several times with no answer, is busy, or is unreachable.

• All calls (unconditional): every call goes to your cell immediately; the business phone does not ring.
• No answer (conditional): the business line rings first, then the call moves to your cell if nobody picks up.
• Busy (conditional): the call moves to your cell only while the business line is already on a call.
• Unreachable (conditional): used when the phone is off or out of service, mainly on wireless lines.
• Remember that all-call forwarding usually overrides voicemail on the business line, so callers reach your cell instead of the office voicemail.

A few minutes of checking saves a lot of frustration. Work through this list before activating anything.

• Identify your exact service. AT&T Phone for Business, AT&T Collaborate, and AT&T wireless all use different codes, and the same is true for other providers. Check a recent bill or your provider's account page.
• Confirm the feature is on your plan. Some providers include forwarding automatically; others require you to add it or have an administrator enable it.
• Know your destination number, including the area code, and make sure your cell has reception where you will take calls.
• Ask about charges. Forwarding can add per-minute or long-distance costs depending on your plan, so confirm pricing with your provider before leaving it on long term.

These steps come from each provider's own documentation. Match your exact product before using them, because codes from one product often do not work on another from the same company.

• Verizon mobile: dial *72 plus the 10-digit cell number to forward all calls; *71 plus the number forwards unanswered calls; *73 turns forwarding off. Set this up from the mobile phone while in Verizon coverage. Verizon business landline: dial *72 and follow the activation instructions from the business line; *73 deactivates.
• AT&T Phone for Business: dial *72, the destination, then # for all calls; *92, destination, # for no answer; *90, destination, # for busy. Turn each off with *73#, *93#, or *91#. AT&T Collaborate instead uses *72 plus the destination for always forwarding (*73 off), *62 for busy (*63 off), and *92 for no-answer (*93 off), with an administrator controlling feature access.
• Comcast Business: features depend on whether you have Voice Mobility, Business Voice, VoiceEdge, or Managed Voice; the My Account portal and Comcast Business App manage forwarding. On the Managed Voice Panasonic TPA65 guide, dial *72 plus the destination to forward all calls and *73 to stop.
• Spectrum Business Voice: sign in to SpectrumBusiness.net with a role that manages voice, open Voice, choose the phone number, then Voice Settings or Forwarding Manager, enable forwarding, pick all calls or busy/no-answer, and set the destination.
• Optimum Business Phone: dial *72, wait for dial tone, then dial the destination; answering the destination confirms it. *73 turns it off. My Optimum Voice settings also manage forwarding.
• Vonage Business Communications: select Call Forwarding and enable Forward Calls to a phone number, then verify with an outside test call.
• Frontier Unlimited Digital Voice: lift the handset, dial *72, wait for the second dial tone, enter the destination, and listen for confirmation; *73 disables. Frontier Digital Voice also offers Find Me-Follow Me and Simultaneous Ring features.
• T-Mobile: dial **21*1, the 10-digit destination, then # for unconditional forwarding; **61*1 plus the destination enables no-reply forwarding. Disable with ##21# or ##61#, or reset everything with ##004#.

Once forwarding is active, place a test call from a different phone, such as a friend's phone, and confirm it rings on your cell the way you expect. Check both an answered call and one you let ring, so you know how missed calls behave. Providers like Optimum confirm activation with tones or by requiring the destination to answer, so listen for those signals during setup.

Write down the deactivate code for your service (often *73) and keep it somewhere easy to find. Turning forwarding off is just as important as turning it on, especially if you move between the office and the field. If your provider has an online portal, forwarding can usually be managed there as well as by phone.

• Test with an outside phone, not your own business line, so you see what a real caller experiences.
• Listen for confirmation tones or prompts during activation; many providers signal success this way.
• Keep the deactivate code handy so you can quickly return calls to the desk phone.
• Check your provider's portal too, since some services let you manage forwarding online instead of by code.

Forwarding to your cell works well when you can answer. But when you are on a job, driving, or with a customer, a forwarded call still goes to your personal voicemail, and callers may not leave the details you need. That is where an answering option helps.

AllDayDesk, this site's AI receptionist, answers business calls around the clock using the business information you save. You keep your public number by forwarding calls to it, and the setup starts by choosing your business or entering its website, checking the details, and hearing a personalized sample. Calls, transcripts, summaries, and bookings show up in your dashboard. New appointments go on the built-in AllDayDesk calendar by default once you have set up your services and availability, and an optional Google Calendar connection is available in Settings after you connect and authorize your account. When the caller asks something AllDayDesk does not know, like a price or an open slot, it takes a message instead of guessing.

If you would rather compare people-based services, human virtual receptionist plans from providers like Ruby start at $245 per month as of October 2026, while Smith.ai uses per-call pricing for its human receptionists. Costs depend on included minutes, overage rates, hours, and contract terms, so always compare current quotes. Human coverage and fees vary by service and plan.

• Forwarding moves the call; it does not answer it, greet the caller, or collect details for you.
• An answering service or AI receptionist can pick up when you cannot and pass you the message later.
• Compare options on coverage hours, how messages reach you, and total monthly cost before deciding.