AI Receptionist Setup Guide for Law Firms

What AI Receptionist Setup Actually Involves

Setting up an AI receptionist for a law firm involves five stages: connecting your phone line, designing the call flow, writing the greeting and intake scripts, defining transfer and escalation rules, and running a supervised go-live. Done properly, the whole process takes 5–10 business days and roughly 4–6 hours of the firm's own time — most of it spent on script decisions only your lawyers can make.

The technology is the easy part. Every credible platform connects to your existing number through conditional call forwarding in under an hour, and no firm in Canada or the United States needs to change its published phone number. The difference between an AI receptionist that books consultations and one that frustrates callers is almost entirely in the configuration decisions covered below. If you are still weighing whether AI is the right answering model at all, start with our comparison of AI receptionists vs. answering services, then come back here for the build.

This guide is the reference implementation we use for firms from solo practices to multi-office litigation shops, and it applies identically whether your firm answers to a state bar in the US or a provincial law society in Canada.

Step 1: Connect the Phone Line and Choose a Routing Model

There are three routing models, and choosing the right one is the first real decision:

Overflow routing (most common starting point): calls forward to the AI only after ringing unanswered at your front desk for 15–25 seconds. Your staff answer when available; the AI catches everything else. Zero disruption to current operations.
After-hours routing: the AI answers evenings, weekends, and holidays only. Since 35–40% of law firm calls arrive outside business hours, this alone recovers a large share of lost intake. See our guide to after-hours AI reception for law firms.
Full routing: the AI answers every call first and transfers to humans by rule. Best for high-volume firms where reception is a bottleneck, and usually the end state after 60–90 days on overflow routing.

Conditional forwarding is configured at your carrier (Bell, Telus, Rogers, Verizon, AT&T, or your VoIP provider) with a star code or dashboard toggle. Keep the forwarding rules documented — you will adjust ring time at least once during tuning.

Step 2: Design the Call Flow and Greeting

A law firm call flow is a decision tree with three top branches: new potential clients, existing clients, and everyone else (courts, opposing counsel, vendors, solicitors). The greeting must accomplish four things in under ten seconds: identify the firm by name, disclose the assistant, state capability, and invite the caller to speak naturally.

A proven greeting pattern: "Thank you for calling [Firm Name]. I'm the firm's virtual assistant — I can take your information, answer questions about the firm, and get you booked with a lawyer. How can I help you today?" Disclosure matters legally (see our companion article on confidentiality and ethics for AI receptionists) and practically: disclosed AI assistants see fewer hang-ups than ones that pretend to be human and get caught.

Branch behavior should differ sharply. New potential clients get the full intake script. Existing clients get a fast path — name, file reference, message, urgency — never a re-interrogation. Courts and opposing counsel get an immediate transfer attempt or priority message flag. Cold solicitors get politely ended in under 30 seconds.

Step 3: Write the Intake Questions per Practice Area

Generic intake loses cases. Every practice area needs its own question set, ordered so the most valuable data is captured first (callers sometimes hang up mid-call — front-load contact details). The universal core, captured in the first 60 seconds: full name, best callback number, email, matter type, urgency, and referral source.

Personal injury: date and location of incident, type of injury, medical treatment received, whether an insurer has made contact, whether another lawyer has been consulted. In both Canada and the US, limitation periods (often 2 years) make the incident date the single most important qualifying question.
Family law: full name of the opposing party (mandatory for conflicts screening before any substantive discussion), whether proceedings have started, children involved, and immediate safety concerns — a safety flag should trigger a human escalation rule.
Criminal defense: charges, next court date, whether the caller is in custody or calling on someone's behalf, arresting jurisdiction. Court dates within 72 hours should flag as urgent.
Wills & estates / corporate: nature of the matter, deadline pressure (closing dates, probate deadlines), and estimated matter size where appropriate.

Cap intake at 8–10 questions. Beyond that, completion rates drop measurably. Everything else belongs in the booked consultation.

Two script rules apply everywhere. First, the AI must never give legal advice: "do I have a case?" always gets the same answer — that a lawyer will assess the situation in a consultation, which the assistant can book right now. Second, quote fees only if your firm has an explicit, published policy (a flat consultation fee, or "free case evaluation"); anything more nuanced gets deferred. Both rules should be written into the system prompt and verified during testing, because they are ethics obligations, not preferences — the reasoning is laid out in our ethics guide linked above.

Language is a configuration decision too. If a meaningful share of your callers speak French, Spanish, Mandarin, or Punjabi, enable multilingual intake from day one rather than treating it as a phase two — bilingual coverage is often the single biggest capture improvement for firms in Quebec, Ontario, California, Texas, and Florida. See our dedicated guide to bilingual AI receptionists for script patterns.

Step 4: Define Transfer, Escalation, and Alert Rules

Transfer rules are where firms most often under-configure. Write them as explicit if-then conditions:

Immediate warm transfer: caller asks for a human, caller is a judge/court clerk/opposing counsel, caller is an existing client with an urgent matter, or the AI detects acute distress.
Urgent alert (SMS + email within 60 seconds): new potential client in a high-value practice area, limitation or court deadline inside 7 days, safety concern in a family matter, in-custody criminal call.
Standard handling: everything else — full intake, calendar booking where enabled, and a structured summary delivered to your inbox or practice management system. For what that sync looks like in Clio, MyCase, or Filevine, see practice management integrations.

Decide the after-hours transfer target explicitly. Most firms route urgent after-hours transfers to an on-call lawyer's mobile for criminal and family safety matters only, and let everything else book into the next morning's calendar. Ambiguity here is how 2 a.m. wrong-number calls end up on a partner's phone.

Step 5: Test, Then Go Live — The Checklist

Before routing a single real call, run 20–30 simulated calls covering every branch: an ideal new client, a rambling caller, an existing client, opposing counsel, a solicitor, a distressed caller, and a caller who refuses to answer questions. Score each transcript for accuracy of capture, correct branch selection, and tone. Fix the script — not the caller — wherever it fails.

The go-live checklist we use:

Greeting discloses AI and states the firm name correctly (including pronunciation)
All practice-area intake scripts tested end-to-end with transcripts reviewed by a lawyer
Transfer numbers verified by live test call, including after-hours targets
Urgent alert SMS/email confirmed delivered to the right people within 60 seconds
Recording-consent language configured for your jurisdiction (two-party consent states, and PIPEDA/provincial rules in Canada)
Practice management or CRM sync verified with a test contact
Conflicts-screening question (opposing party name) live in family and litigation scripts
Parallel-run window scheduled: 2–4 weeks of overflow/after-hours only, with weekly transcript review
Baseline metrics recorded (answer rate, booking rate) so you can measure lift — benchmarks in our conversion benchmarks article

The First 90 Days: Tuning for Real Performance

Firms that treat go-live as the finish line plateau; firms that review transcripts weekly for the first month keep improving. The standard tuning cadence: weekly transcript review for weeks 1–4 (expect to adjust 3–5 script lines each week), bi-weekly for weeks 5–8, then monthly. Watch three numbers: answer rate (should be effectively 100% on routed calls), intake completion rate (target 85%+), and consultation booking rate on qualified leads (target 50%+).

Common first-month fixes: shortening the greeting, re-ordering intake questions after observing where callers drop, adding pronunciation entries for lawyer names, and tightening the solicitor-screening branch. By day 90, most firms move from overflow routing to full routing because the data makes the case for them. Browse the rest of the AI Receptionists for Law Firms hub for cost, ROI, and practice-area-specific guides.

Frequently Asked Questions

How long does it take to set up an AI receptionist for a law firm?

Most law firms complete AI receptionist setup in 5 to 10 business days. The technical connection — call forwarding from your existing number — takes under an hour. The bulk of the timeline is script design: writing greetings, intake questions per practice area, and transfer rules, then testing with 20–30 simulated calls before go-live.

Do I need to change my law firm's phone number to use an AI receptionist?

No. Your firm keeps its existing number. The AI receptionist is connected through conditional call forwarding — for example, forwarding only calls that ring unanswered for 20 seconds, only after-hours calls, or all calls. You control the routing and can change it at any time through your existing carrier.

What intake questions should a law firm AI receptionist ask?

At minimum: caller name, callback number, email, matter type, urgency, how they found the firm, and a brief description of the situation. Practice-specific scripts add targeted questions — date of incident and injuries for personal injury, court date and charges for criminal defense, opposing party name for conflicts checking in family law.

Should the AI receptionist tell callers it is an AI?

Yes. Disclose it in the greeting. Several US states (including California) and Canadian privacy guidance expect disclosure when a caller is interacting with an automated system, and bar/law society technology-competence guidance points the same direction. Disclosure also improves outcomes: callers who know they are talking to an assistant leave more complete information.

What is a parallel-run period and do I need one?

A parallel run means the AI answers a controlled slice of calls — typically after-hours or overflow only — for 2 to 4 weeks while your existing answering process handles the rest. You compare transcripts, capture rates, and booking rates before routing all calls. Firms that run a parallel period catch script gaps before they cost real clients, so yes, do it.

How do transfer rules work in a law firm AI receptionist?

Transfer rules are conditions that route a live call to a human: existing clients asking for their lawyer, opposing counsel, courts, callers flagged as urgent or in crisis, and any caller who explicitly asks for a person. The AI attempts a warm transfer to the designated line; if no one answers, it takes a structured message and sends an instant SMS/email alert.

How to Set Up an AI Receptionist at Your Law Firm: The Complete Implementation Guide