Start with one question: which calls need a person? Ruby puts a human receptionist on every call. Smith.ai lets AI take routine calls and passes the hard ones to trained agents. Answering Agent puts AI on every call at a flat monthly rate. Price, speed, and CRM fit follow from that choice.
Answering Agent is our product, so read our section with that in mind. The pricing math below uses each vendor's published rates. Confirm current rates before you sign.
- Ruby: Human receptionists with AI prompts behind them. It sounds personal, but per-minute billing makes the bill unpredictable, and answers slow down at peak times.
- Smith.ai: AI plus trained human agents. It has strong legal call handling features and per-call pricing, but overages add up at high volume.
- Answering Agent: AI only. It answers instantly, takes unlimited calls, and charges a flat rate. It fits firms with high or spiky call volume.
| Feature | Ruby | Smith.ai | Answering Agent |
|---|---|---|---|
| Response time | 15–30+ seconds (human-led) | 5–30 seconds (hybrid) | Under 5 seconds (AI-only) |
| Pricing | $1,000–$2,655/month | $1,462–$1,950/month | $199/month (flat rate) |
| Billing model | Per-minute | Per-call | Flat-rate |
| Call handling | Human receptionists | AI + human agents | Fully AI |
| Call volume capacity | Limited by staff availability | Limited by staff availability | Unlimited simultaneous calls |
| Legal CRM integrations | Clio, MyCase, Rocket Matter | Clio, MyCase, LawPay, etc. | Clio, MyCase, custom APIs |
| Spam call charges | Charged unless filtered | Free filtering | No charges |
| After-hours support | Yes | Yes | Yes |
Pricing assumes 150–200 calls a month. See the pricing section for the breakdown.
Ruby Receptionists for Law Firms
A US-based human receptionist answers every Ruby call. AI feeds that person scripts and FAQs in real time, but callers never talk to the AI.
For law firms, Ruby offers:
- Custom call scripts, conflict checks, and legal intake forms
- Consultation booking through Clio, MyCase, and Rocket Matter
- Answering 24/7/365, with bilingual support included
- Warm transfers to attorneys and outbound appointment confirmations
- Texting from a mobile app, where attorneys can also update their call routing status
- Signed BAAs
The case for Ruby is the human voice on sensitive calls. On cost, Ruby's Expand plan runs about $8,640 a year, against roughly $61,500 for a full-time receptionist.
The billing is the catch. Ruby charges per minute and rounds to 30-second increments. Spam and sales calls count toward your minutes unless you turn on robocall filtering. Answer times can stretch past 30 seconds on busy mornings. Ruby's receptionists also serve many industries, so their legal depth varies.
| Ruby strengths | Ruby limitations |
|---|---|
| 100% US-based human agents with a personal touch | Premium per-minute pricing ($3.39–$4.90/min) |
| HIPAA compliance with signed BAA agreements | 30-second billing increments can increase costs |
| Integrates with Clio, MyCase, and Rocket Matter | Charges for spam calls unless filtering is enabled |
| Bilingual support included at no extra charge | Slower response times (15–30+ seconds) compared to AI |
| Outbound calling and warm transfers available | Less suited for high-volume practices |
Smith.ai for Law Firms
At Smith.ai, AI handles routine calls and North American receptionists take the complex ones. Those receptionists are trained on legal terminology, case types, and statute-of-limitations urgency. Family law and criminal defense calls can go straight to a person. Smith.ai runs 24/7 in English and Spanish. For more on where each side fits, see our comparison of AI and human receptionists.
Smith.ai integrates natively with Clio, MyCase, PracticePanther, Lawmatics, and Filevine. It reaches thousands more apps through Zapier and Make. Receptionists can run preliminary conflict checks during intake. They can also collect consultation fees or retainers through LawPay, book appointments through Calendly, and send SMS or email follow-ups after each call.
Smith.ai bills per call, which helps because legal intake calls run around 6 minutes. Plans start at $95/month for 50 AI-only calls or $300/month for 30 hybrid calls. Overage runs $8.50–$11.50 per call. Spam is filtered free. For the full cost comparison, see our breakdown of AI vs. human receptionist costs.
Plan for two costs. Overages pile up in busy months, and the hybrid service needs 2–4 weeks of onboarding for scripts and agent training. Reviews are strong: 4.8/5 on Trustpilot and 4.9/5 on Capterra.
| Smith.ai strengths | Smith.ai limitations |
|---|---|
| Combines AI efficiency with human expertise for complex calls | Per-call overages ($8.50–$11.50) can add up at high volumes |
| Offers native integrations with Clio, MyCase, and more | Onboarding for hybrid service takes 2–4 weeks |
| Predictable per-call pricing, ideal for longer calls | Response times may stretch to 15–30 seconds during peak hours |
| Includes payment collection and conflict checks | Less cost-effective compared to flat-rate AI-only services |
| Free spam filtering and bilingual support | Human involvement can sometimes introduce variability |
Answering Agent for Law Firms
Answering Agent is AI on every call, with no human agent layer. It answers in under five seconds and takes as many simultaneous calls as come in, so a marketing push or an after-hours spike never hits a busy signal or voicemail. Across 17,724 scored calls, the error rate was 0.07%.
Scripts are set per practice area, so personal injury intake asks different questions than family law intake. The AI runs conflict pre-screening. Based on your rules, it either books the consultation or escalates the call to an attorney. Transcripts and contact records sync to Clio or MyCase, and webhooks cover other CRMs.
Pricing starts at $199/month and goes up to $1,500/month for larger firms. Every plan includes unlimited calls, with no per-minute charges, overages, or spam fees. Setup takes 15–30 minutes, and you edit scripts and integrations yourself in a dashboard instead of filing support tickets.
The tradeoff is that no receptionist is available to step in. When a caller needs human judgment, the call goes to your own team.
Feature Comparison: Ruby vs Smith.ai vs Answering Agent
| Ruby | Smith.ai | Answering Agent | |
|---|---|---|---|
| Who answers | Human, with AI prompts | AI first, human for complex calls | AI only |
| Busy periods | Hold times when staff are booked | AI absorbs volume, human queue can back up | Every call answered at once |
| Scheduling | Human-led booking | AI booking with human backup | Automated real-time booking |
| Setup | 24–48 hours (templates) | 2–4 weeks (agent training) | 15–30 minutes |
| Making changes | Support ticket | Support ticket | Self-service dashboard |
Busy periods are where this table matters most. Human and hybrid services are capped by how many agents are on shift. That cap bites on Monday mornings and after hours, when many legal calls come in.
Pricing Comparison: Ruby vs Smith.ai vs Answering Agent
The billing model matters more than the sticker price.
- Ruby bills per minute and rounds to 30 seconds, so a 65-second call bills as 1.5 minutes. The rounding alone adds 15–30%. Its high-volume plan is $1,695/month for 500 minutes, with overage at $3.95–$5.40 per minute.
- Smith.ai bills per call. Its Pro plan is $975/month for 100 calls, plus $9.75 per extra call.
- Answering Agent charges $199/month for unlimited calls.
| Provider | 150 calls/month | 200 calls/month | Billing model | Overage cost |
|---|---|---|---|---|
| Ruby | $1,000–$1,500+ | ~$2,655 | Per-minute | $3.95–$5.40/min |
| Smith.ai | $1,462.50 | $1,950 | Per-call | $9.75/call |
| Answering Agent | $199 | $199 | Flat-rate | $0 |
Ruby and Smith.ai costs rise with every call. Ruby also bills spam unless you filter it. Above 100 calls a month, a flat rate saves $4,800–$9,300 a year compared with per-minute services.
CRM Integrations and Legal Compliance
Choose based on the CRM you already run:
- Clio or MyCase, plus payments: Smith.ai has the deepest native legal integrations, including PracticePanther, LawPay, Salesforce, and HubSpot.
- A custom or general CRM: Answering Agent's webhooks let you shape the data flow yourself, and every call is logged with a transcript and recording for your audit trail.
- Clio, MyCase, or Rocket Matter, with a human on every call: Ruby works, but it supports only those three platforms. Other systems mean manual workarounds, and its call logging is thinner.
If intake touches health information, as in personal injury, workers' comp, or med-mal, get a signed Business Associate Agreement before going live. Ruby signs BAAs, and Smith.ai offers HIPAA compliance as an option. Ask any vendor, including us, for the BAA and data-handling terms in writing.
How to Estimate ROI for Your Firm
Skip the vendor case studies and use your own phone logs:
- Count missed and after-hours calls for one month.
- Multiply by your consult-booking rate to get the consultations you lost.
- Multiply by your sign rate and average fee or case value.
- Subtract the service's monthly cost at your call volume, using the pricing table above.
Firms using the human services report real savings. Tyra Law Firm in Rockville, MD, replaced an in-house receptionist with Ruby and saved about $55,860 a year. Buchanan Law Firm in Albuquerque paired Smith.ai with Lawmatics to get 24/7 personal injury and employment intake, so its attorneys could spend their time on billable work.
Which One Should Your Firm Pick?
- Pick Ruby if you want a human on every call, your call volume is modest and steady, and you run Clio, MyCase, or Rocket Matter.
- Pick Smith.ai if you want AI for routine calls and a legally trained person for sensitive intake, and you need payment collection built in.
- Pick Answering Agent if call volume is high or spiky, you want one predictable bill, and your attorneys can take the calls that need judgment.
FAQs
How does an AI receptionist protect attorney-client confidentiality?
Call data should be encrypted in transit and at rest, access to transcripts should be restricted, and data should reach your practice management system over secure connections. Before you go live, get the vendor's data-retention and access terms in writing. If calls involve health information, get a signed BAA.
What call volume makes flat-rate unlimited pricing worth it?
Past about 100 calls a month, flat-rate pricing clearly wins. At 150 calls, Smith.ai runs about $1,462 and Ruby $1,000–$1,500+, against $199 for unlimited calls. Flat rate also removes overage surprises in busy months.
Can an AI receptionist schedule consultations and sync with my legal CRM automatically?
Yes. All three services book consultations and sync with Clio and MyCase. Answering Agent also creates contact records and logs transcripts in real time, and uses webhooks for other CRMs.
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