New Leads vs Existing Clients: How Law Firms Should Route Every Inbound Call

By Attorney Michael Brunman, Co-Founder and CEO of Clerx

Law firm call routing is the process of identifying why a person is calling and sending the interaction to the correct intake, service, scheduling, payment, or escalation workflow. New prospects should not receive the same script as existing clients, courts, vendors, referrals, or adverse parties.

A law firm can answer every call and still create a poor experience. The new client is transferred three times. The existing client must repeat the facts of an open matter. A court clerk reaches a generic voicemail. A vendor consumes ten minutes of intake time. Someone connected to an opposing party shares sensitive information before the firm understands who is calling.

These are routing failures, not answer-rate failures. Solving them requires a caller map, clear ownership, and rules that tell the receptionist what to collect, what not to disclose, and when a person must take over.

Why one universal greeting and script fails

Many firms use one published number for almost everything. That is convenient for the public, but it creates multiple workflows behind the same front door.

A prospective client usually needs identification, preliminary screening, and a path toward consultation. An existing client may need a message attached to a matter, a billing route, a scheduling change, or a defined status process. A judge’s chambers, court clerk, co-counsel, expert, interpreter, vendor, or opposing counsel may need immediate professional routing.

If everyone receives a long new-client questionnaire, the firm wastes time and frustrates people it already serves. If everyone receives a short message-taking script, the firm loses the structure needed to convert new demand.

Treating intake as a growth system begins with recognizing that the phone line is also part of client service and firm operations.

Start with a caller taxonomy

The firm should define its caller categories before designing scripts. A practical starting point is:

1. prospective client;
2. existing client;
3. former client;
4. referral source or co-counsel;
5. court, agency, law enforcement, or other professional;
6. vendor, salesperson, or general business caller;
7. adverse, represented, or unknown party;
8. emergency or high-priority exception.

These categories do not need equally complex workflows. They need distinct outcomes.

The opening can be simple: identify the firm, ask the caller’s name and reason for calling, and establish whether the person is a new inquiry or is contacting the firm about an existing matter. The classification may change as more information appears. The system should allow that without forcing the caller to restart.

The core routing tree

Donna, Clerx’s AI receptionist, can apply firm-approved routing and intake logic to inbound calls. The same design principles apply whether the first response is handled by AI, staff, or an answering service.

Every branch should specify:

• required identifying information;
• permitted questions;
• information that must not be disclosed;
• transfer or message destination;
• urgency triggers;
• after-hours behavior;
• system record and staff notification;
• fallback when the intended recipient is unavailable.

The rule should be precise enough to execute and simple enough to maintain.

Branch 1: prospective clients

New inquiries need structured intake. A good legal intake call identifies the person, gathers the minimum useful facts, detects firm-defined urgency, and creates a clear next step.

The first call may collect:

• name and contact information;
• general legal need;
• state, county, or relevant jurisdiction;
• names for conflicts review;
• known incident, filing, hearing, or response dates;
• language preference;
• how the person found the firm;
• scheduling preference.

It should not provide legal advice, promise representation, or invite unnecessary sensitive detail. The attorney controls qualification standards and decides whether the firm can represent the person.

Branch 2: existing clients

Current clients should feel recognized, but recognition does not justify disclosing matter information without appropriate safeguards.

The workflow can ask for the caller’s name, a reliable callback number, the attorney or team involved, and the general purpose of the call. Depending on the firm’s systems and policies, it may identify a likely existing relationship and direct the interaction to the correct team.

Common subcategories include:

• scheduling or rescheduling;
• document or information delivery;
• billing or payment;
• request for status;
• message for the legal team;
• report of a new development;
• urgent issue under a predefined rule.

An AI receptionist should not invent a case update or interpret the docket. Unless the firm has deliberately approved a narrow, authenticated information workflow, the safer result is to capture the request, preserve context, and route it to the responsible person.

Branch 3: former clients

Former clients can present a mixture of service and intake needs. They may request a copy of a file, ask about billing, seek help with a new problem, or assume the prior representation continues.

The routing logic should avoid confirming facts about prior representation before identity and disclosure requirements are satisfied. It should also avoid treating the caller as automatically represented on a new issue.

A practical route is to identify the request, collect callback information, and send it to the person responsible for records, billing, or new-matter review.

Branch 4: courts, agencies, and legal professionals

These calls may be time-sensitive even when they are not lengthy. Ask for the caller’s name, organization, callback information, attorney or matter referenced, and purpose. If the firm has a live-transfer rule for courts or agencies, use it. If not, create a high-visibility message for the designated owner.

The firm should test variations such as blocked caller ID, an unfamiliar agency number, or a clerk who does not know the internal matter number. Routing based only on the incoming number is fragile.

Referral sources and co-counsel may deserve their own priority path. The workflow can identify the referring person and intended recipient without asking them to complete a consumer intake script.

Branch 5: vendors and sales calls

Vendor calls should not interrupt attorneys or occupy the new-client intake queue. Collect the company, caller, purpose, and return information, then route to the administrative owner or approved inbox.

The firm can also define categories that receive no live transfer, such as unsolicited sales calls. The response should remain professional and consistent.

Branch 6: adverse, represented, or unknown parties

A caller may be an opposing party, witness, relative, or person whose relationship is unclear. The receptionist should not guess, disclose that someone is a client, confirm strategy, or discuss a matter.

The firm should create a narrow script that collects identity, contact information, the person or matter they are trying to reach, and the purpose in their own words. Then route for human review. ABA rules, applicable state rules, court orders, and the facts of the matter should guide any communication that follows.

The same caution applies to prospective-client contacts. ABA Model Rule 1.18 recognizes duties concerning information learned from prospective clients. Good routing reduces unnecessary disclosure before the firm understands the relationship.

Handle urgency as a separate layer

Urgency can appear in any caller category. A new prospect may mention a hearing tomorrow. An existing client may report an arrest. A court may need an immediate response. A vendor may label an ordinary invoice “urgent.”

Create objective triggers rather than letting the label control the route. For each trigger, define:

• the exact facts or phrases that activate it;
• who receives the first alert;
• whether to attempt a warm transfer;
• the backup contact;
• the after-hours outcome;
• the record and notification format.

The receptionist applies the route. The attorney determines legal urgency.

Connect routing to the system of record

Practice management and intake software work best when each has a defined role. The intake layer manages immediate interaction and classification. The practice-management system organizes the lead, client, matter, tasks, calendar, and work that follows.

The Clerx integration with 8am MyCase can send contacts, call notes, recordings, and consultation information into MyCase according to the configured workflow. The Clerx integration with Clio supports contacts, matters, call summaries, consultation details, and scheduling handoff.

The firm should decide where each caller category belongs. A new lead may require a contact and consultation. An existing-client message may belong with the matter or designated service queue. A vendor call may not belong in the legal CRM at all.

Use written channels to complete, not fragment, the route

The caller may need a scheduling link, document-upload instruction, payment link, or acknowledgment by text. A structured SMS workflow can reduce phone tag, but it needs the same ownership and record rules as the call.

Do not create a new orphaned inbox. The message should continue the identified workflow and make the next step clearer.

Decide what remains human

Automation is strongest for repeatable classification, information gathering, scheduling, notifications, and handoff. Human judgment remains essential for legal advice, conflicts decisions, unusual emotional situations, representation decisions, high-risk disclosures, and exceptions that the firm has not safely defined.

The practical boundary is covered more broadly in what should be automated and what should stay human. A strong workflow does not pretend every interaction is predictable. It makes the predictable majority efficient and gives the exceptions a reliable route to people.

Test the routing tree with real scenarios

Use the law-firm intake checklist as a base, then test at least:

• new qualified and unqualified leads;
• a current client with a routine request;
• a current client reporting a defined urgent event;
• a former client with a new matter;
• a court clerk seeking an unavailable attorney;
• a referral source;
• opposing counsel;
• an unidentified relative asking for information;
• a vendor and a sales call;
• simultaneous calls;
• after-hours calls;
• a caller switching languages.

Review the transcript, summary, system record, notification, and actual staff action. The complete chain determines whether routing worked.

Measure more than answer rate

Useful intake metrics for routing include:

• caller-type distribution;
• correct-route rate;
• transfer success rate;
• avoidable transfer rate;
• time to staff response by category;
• repeat-call rate;
• existing-client calls resolved without attorney interruption;
• urgent-alert acknowledgment;
• missing-context and staff-correction rates;
• new-lead booking and conversion rates.

These numbers show whether the firm is merely answering or actually directing work well.

Frequently asked questions

What is law firm call routing?

It is the process of identifying caller type and purpose, then directing the interaction to the correct intake, client-service, professional, administrative, or escalation workflow.

Can an AI receptionist recognize existing clients?

It can ask the caller, collect identifying information, and use configured system data and rules where supported. The firm should define authentication and disclosure limits.

What should it ask an existing client?

Usually the caller’s name, callback number, responsible attorney or matter, and general purpose. Collect only what the firm needs to route the request.

Can an AI receptionist give case status?

It should not invent or interpret a status. A firm may configure narrow approved information workflows, but legal analysis and sensitive updates should remain with authorized staff.

How should courts be routed?

Collect the caller, organization, matter, callback details, and purpose, then follow a designated priority transfer or alert rule.

What should happen when an opposing party calls?

Avoid disclosures and substantive discussion. Collect limited identifying information and route for human review according to firm policy and applicable rules.

How are urgent client calls handled?

The firm defines objective triggers, a primary and backup contact, after-hours rules, and the required record. The receptionist executes that route.

Does routing integrate with MyCase or Clio?

Clerx has live integrations with both platforms. The correct record destination depends on caller type and the firm’s configured workflow.

What should a firm measure?

Measure correct routes, transfer success, response time, repeat calls, staff corrections, interruptions avoided, and new-lead conversion.

Is call routing useful for solo attorneys?

Yes. A solo can use a compact tree with new leads, current clients, professional calls, administrative calls, and urgent exceptions.

Book a demo with Clerx today