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Industries · Accounting Firms

Phone Systems for Accounting and CPA Firms

Built for a business where February and October are different planets, and the IRS still faxes.

An accounting firm's phone load is seasonal in a way few businesses match: the six weeks before a deadline generate more calls than the following six months, every caller believes their extension request is the urgent one, and the IRS, gloriously, still communicates by fax. A phone system priced and shaped for the average month fits an accounting firm badly in both directions.

Cannon VoIP flexes instead: queues with callbacks absorb deadline-season volume without hold music, month-to-month pricing at $34 per extension means seasonal staff get extensions for the season only, cloud eFax handles IRS and state correspondence from any laptop with a searchable archive, and deadline-week schedules switch routing automatically when the firm goes heads-down.

Tax season breaks average-month phone systems

From mid-January to April 15, the phones do not stop: document chasers, "did you get my 1099," extension anxieties, and new clients fleeing whoever missed their deadline last year. Staffing phones like a call center for six weeks is impossible; letting calls die in voicemail during the exact window when clients are choosing firms is worse. Queues with callbacks, and an after-hours intake that captures the fleeing client at 8 PM, resolve the contradiction.

The rest of the year has the opposite problem: a small crew, deep-work days, and partners who bill by the hour getting interrupted by calls a menu should have answered. Routing that respects focus time is not a luxury in this business; it is margin.

What we set up for accounting firms

Deadline-season queues
Queues hold each caller's place and offer callbacks, distribute to whoever is free, and show the office manager live wait times. The February phone tsunami becomes a list instead of a hold line.
eFax for the IRS and the states
Powers of attorney, transcripts requests, and state notices move through cloud eFax at $10 per month, sent and received from email with a searchable archive, so "find the fax we sent in March" takes seconds.
Per-partner lines that respect focus
Each partner and senior gets a direct line with a personal forwarding matrix: client-call windows ring the desk, deep-work blocks go to transcribed voicemail, and the assistant sees everything in email.
Deadline-week schedules, automatic
Special schedules for deadline weeks switch greetings and routing on dates you set in advance: extended hours in April, closed the week after, and the greeting re-records itself each time.
New-client intake after hours
The AI receptionist answers when the firm cannot, collects the caller's situation in a structured message, books consultations against a live calendar, and texts confirmation, capturing the client who is shopping firms tonight.
Teams and CRM, connected
Firms living in Microsoft 365 take calls inside Teams via Direct Routing with no Microsoft calling plan, and client calls log with AI summaries to Zoho, HubSpot, Dynamics 365, and more.

Why firms switch to Cannon VoIP

Month to month at $34 per extension means seasonal reality is billing reality: add extensions for tax-season staff in January, drop them in May. No contracts, no true-up conversations, and texting plus transcription included.

Calls that matter are documented: recording per extension with searchable transcripts turns "what did we advise about the estimated payments" into a lookup instead of a reconstruction. Where recording is not appropriate, it stays off; the control is yours, documented in our compliance overview.

And the firm's number, on two decades of engagement letters, ports for $15 per line with about two minutes of downtime, usually completing the next business day, ideally scheduled for a quiet week in June.

What a typical setup looks like

A typical firm runs partner, senior, admin, and bookkeeping extensions at $34 each, the front-desk menu routing "current clients" by name recognition and "new clients" to intake, and eFax at $10 replacing the machine by the copier. During deadline season the queue turns on, callbacks absorb the spikes, and the after-hours AI catches the evening shoppers.

Off-season, the same system gets small again: focus-time forwarding rules, a quiet menu, and voicemail transcripts read from email between engagements. Nothing to renegotiate; the system just follows the calendar you set.

Common questions from accounting firms

Is eFax actually acceptable for IRS correspondence?
The IRS and state agencies broadly accept fax for the forms that still move that way, and cloud eFax is a real fax line, delivered to and from email, with an archive you can search at review time. Firms handling sensitive client data also note it is HIPAA-compliant grade infrastructure.
Can we add ten seasonal extensions in January and drop them in May?
Yes, that is what month-to-month means here: extensions are added and removed as staffing changes, billing follows, and no contract clause cares. Volume discounts recalculate automatically if you cross 25 extensions.
What happens to calls during our closed week after April 15?
A dated schedule you configured in March: a recovery-week greeting, emergency-only routing if you want it, and everything else to transcribed voicemail. It switches itself on the 16th while the firm sleeps.

Bookkeeping and advisory clients text now: "your documents are ready" and "reply YES to approve the e-file" go from the firm's real number, threaded by client, on the included texting.

Make February survivable

Talk to us about queues, eFax, and seasonal flexibility for your firm.

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