Key facts
| Fact | Detail |
|---|---|
| What it is | Calls, two-way texting, eFax, voicemail and messaging on one service, one number and one record per contact |
| Who it fits | Medical, dental, legal and financial practices with roughly 2 to 50 staff |
| Compliance frame | HIPAA Security Rule (45 CFR 164.312) and BAA rules (45 CFR 164.502(e), 164.504(e)); ABA Model Rule 1.6 for law firms; SEC Rule 17a-4 and FINRA 4511 for broker-dealers |
| Typical price shape | Per user per month, with texting, fax and AI as add-ons; some dental vendors price per location |
| ZentryVoice | $20 per user per month, month-to-month; texting and eFax $15 per practice per month each; BAA countersigned at signup |
| Time to switch | Soft extensions in about 15 minutes; number porting in 5–10 business days |
What does “unified communications” mean for a practice?
Unified communications means one service carries every way the office talks to people. Calls, text messages, faxes and voicemail all land in the same account. For a front desk, the important part is not the technology but the record. One number means a patient texts the same number they call. One timeline means the person answering the phone sees the last text, the last fax and the last voicemail from that patient before saying hello.
Most small practices run the opposite setup. A phone carrier handles calls. A texting app, or a staff member’s personal phone, handles texts. A fax machine or an online fax account handles referrals and records. Voicemail lives inside the phone system and nowhere else. Each piece has its own login, its own bill and its own contract. The pieces do not know about each other, so no one has the full picture of a single patient’s contact history.
The term comes from enterprise IT, where it also covers video meetings and team chat. For a regulated practice, the useful definition is narrower: the channels patients and clients actually use, on one number, in one record, covered by one agreement.
Why does one number and one timeline matter more than any feature?
A single record changes how the front desk works, and it changes what the compliance picture looks like.
On the operations side, the timeline removes the “let me check” moment. A dental office that texts a recall reminder from the practice number sees the reply next to the call log for that patient. A law firm sees the client’s fax arrive on the matter it belongs to. A medical office sees that the voicemail asking about results was already answered by text. None of this requires a new skill; it requires the channels to share one record.
On the compliance side, one record means one set of safeguards. HIPAA’s Security Rule sets technical safeguard standards for access control, audit controls, integrity, person or entity authentication and transmission security (45 CFR 164.312). When texts live on a personal phone, none of those controls reach them. When they live in the same system as calls and faxes, the same access rules, the same audit log and the same encryption apply to all of them.
The same logic applies outside healthcare. ABA Model Rule 1.6(c) asks lawyers to make reasonable efforts to prevent unauthorized disclosure of client information. SEC Rule 17a-4 and FINRA Rule 4511 require broker-dealers to preserve business communications, and the SEC’s off-channel enforcement actions since 2022 targeted exactly the texts that lived on personal devices. A platform that captures every channel on the firm number makes “reasonable efforts” and “preservation” much easier to show.
Which channels should a unified platform cover?
A platform built for practices should cover six things. If one is missing, the practice ends up with a second vendor and a second agreement.
- Calls on a practice number, with extensions for each staff member and desk phones where the office wants them.
- Two-way texting from the practice number, not from a separate short code or an app number patients do not recognize. In the United States, business texting from local numbers requires 10DLC registration with The Campaign Registry, and the Telephone Consumer Protection Act (47 U.S.C. § 227) governs consent.
- Fax that arrives as a document in the same record, sent and received over the internet rather than a phone line. Referrals, insurance and records requests still move by fax in healthcare and law.
- Voicemail transcribed to text, so a message can be read, searched and assigned without playing audio at the front desk.
- Audit log and access control across all of the above, so the practice can show who saw what and when.
- An agreement that covers all channels. For HIPAA covered entities that is a Business Associate Agreement; law firms and financial firms need confidentiality and recordkeeping terms instead.
AI call summaries and reporting are useful additions. They matter less than the six items above, because they depend on the record existing in the first place.
How does a unified platform compare with separate vendors?
The table shows the typical shape of each setup for a small practice. Prices for named vendors are dated and sourced in the Practice Phone Price Index; this table describes structure rather than specific quotes.
Separate vendors versus one platform, for a practice with 5 staff
| Question | Separate phone, texting and fax vendors | One unified platform |
|---|---|---|
| Numbers patients see | Phone number, a different texting number, a fax number | One practice number for calls and texts; a fax number on the same account |
| Where the record lives | Three systems, or a personal phone for texts | One timeline per patient or client |
| Agreements to sign | One BAA per vendor that touches PHI, often three | One BAA covering calls, texts, fax and voicemail |
| Access control and audit log | Separate per vendor; none on a personal phone | One role model, one audit log |
| Bills and renewals | Three invoices, three renewal dates, sometimes an annual term | One invoice; ZentryVoice is $20 per user per month, month-to-month |
| Who to call when something breaks | Depends which piece broke | One support line |
Separate vendors are not wrong. A practice that already has a good fax provider under a BAA can keep it. The cost of separate vendors is not only the invoices; it is the gaps between the systems, where a text goes unrecorded or a fax is filed to the wrong chart. The 3-year cost comparison works through the numbers for a 5-seat office.
What does a unified communications platform cost?
Pricing follows one of three models, and the model matters more than the headline number.
Per user per month is the most common. Each extension pays a seat price, and add-ons such as texting, fax or AI are priced per seat or per account. General business platforms publish seat prices from roughly $10 to $80 per user per month depending on tier and term (see the dataset in the Price Index), with annual commitments earning the lower figure. Texting volume, fax and a BAA-eligible tier are often extra.
Per location per month is common among dental-focused vendors. The price covers the office regardless of seat count, which favors larger teams and penalizes small ones. A two-person office pays the same as a ten-person office. Setup fees and annual contracts are typical in this model.
Quote-only means the vendor does not publish a price. That is not a red flag by itself, but it makes comparison impossible without a sales call.
A seat on ZentryVoice is $20 per user per month. Texting is $15 per practice per month and eFax is $15 per practice per month, both per practice rather than per seat. Desk phones are $119 one-time and optional. There is no annual contract. The pricing page lists every line item, and the hidden costs guide covers fees that do not appear in headline prices anywhere.
What should a regulated practice check before signing?
Five questions separate a platform that fits a regulated practice from one that merely works.
- Will the vendor sign a BAA, and which channels does it cover? Under 45 CFR 164.502(e) and 164.504(e), a covered entity may let a business associate handle PHI only under a written agreement with specific terms. Ask whether voicemail, recordings, texts and faxes are all inside the agreement. Some vendors cover calls but exclude texting, or cover texting only on a higher tier.
- Is texting registered and consent-based? Business texting from a local number must be registered with The Campaign Registry (10DLC). The vendor should capture opt-in, honor STOP automatically and log both.
- Does 911 work from every extension with a location? Kari’s Law requires direct 911 dialing and on-site notification from multi-line systems, and RAY BAUM’s Act requires a dispatchable location to be sent with the call. The FCC’s MLTS page sets out both.
- Where is the audit log, and can you export it? The practice, not the vendor, answers to regulators. It needs to produce the log on request.
- What does leaving look like? Month-to-month terms, free number port-out and a data export are the difference between a vendor and a landlord.
Law firms should add a sixth question about client confidentiality terms, and broker-dealers should ask how communications are preserved for SEC Rule 17a-4. The BAA guide walks through the first question in detail.
How ZentryVoice handles this
ZentryVoice is a unified communications platform for medical, dental, legal and financial practices. Calls, encrypted two-way texting, eFax, transcribed voicemail and AI call summaries run on one practice number and one timeline per patient or client.
- Price: $20 per user per month, 30-day trial, month-to-month, no annual term. Texting and eFax are $15 per practice per month each.
- Agreement: the Business Associate Agreement is presented for e-signature during signup and countersigned by ZentryVoice before texting or fax can be enabled on a medical or dental account. Law firms receive a Confidentiality and Privilege Addendum; financial firms receive a Recordkeeping and Supervision Addendum.
- Channels: calls with unlimited extensions, 10DLC-registered texting from the practice number, T.38 eFax, voicemail transcription and AI summaries, all written to one immutable audit log.
- Go-live: soft extensions on desktop and mobile ring in about 15 minutes; desk phones arrive pre-provisioned in 2–3 business days; number porting takes 5–10 business days with forwarding from day one.
The vertical guides cover the compliance frame for each kind of practice, and the pricing page has the full line-item table and calculator.

