1:1 comparison · Verified August 27, 2026 If you’re weighing DialPhone vs Ooma Office for your business phone system in 2026, the choice usually comes down to three factors: real total cost over 36 months, whether AI receptionist is included or addon, and how the platform handles US/Canada cross-border seats.
Every competitor figure below is taken from the vendor’s own published pages and is listed with its source and check date at the end of this page. Where a vendor does not publish a figure, this page says so instead of estimating.
TL;DR: at a glance
- Best for teams wanting the lowest published entry price with no contract: Ooma Office
- Best for teams that need video meetings for up to 200 participants, a contact center, or a HIPAA BAA: DialPhone
- Critical 2026 difference: Ooma has the lower published entry price ($19.95 vs $24). DialPhone may fit better when you need published contact-center tiers, a HIPAA BAA or a single vendor for UC and CC.
Quick comparison table
| Feature | DialPhone | Ooma Office |
|---|---|---|
| Starting price | $24/user/mo (Core, annual) | $19.95/user/mo (Essentials, no contract) |
| Setup fee | $0 | Not publicly listed |
| AI receptionist | Add-on ($59/mo) | Add-on |
| Published uptime SLA | 99.999% monthly uptime target with service credits (Terms §6) | No public SLA located |
| HIPAA BAA | BAA offered on Advanced and higher (HIPAA) — a contract, not a certification | Not publicly confirmed |
| SOC 2 | Contact DialPhone for current status, scope and documentation (SOC 2) | Not publicly confirmed |
| GDPR | DPA and EU data residency (GDPR) — not a certification | Not publicly confirmed |
| PCI DSS | Contact DialPhone for current status, scope and documentation (PCI) | Not publicly confirmed |
| Founded | 2024 | 2003 |
| Headquarters | Hong Kong | Sunnyvale, CA |
| 36-month seat cost, 25 seats | $21,600 (25 × $24 × 36, Core annual) | $17,955 (25 × $19.95 × 36, Essentials) |
Pricing breakdown
DialPhone
- Core ($24/user/mo, annual): unlimited US/Canada calling, SMS, HD video meetings up to 200 participants, AI live captions and transcription
- Advanced ($34, annual): adds AI SMS drafting, Proactive Workflow Automation, integrations and a HIPAA BAA
- Ultra ($54, annual): adds advanced analytics
- Contact Center (separate CCaaS plans from $65/agent/mo): omnichannel routing, AI quality management, workforce management
- Smart Virtual Concierge (AI Receptionist): separate $59/month add-on, or $69/month in the AI Pro Bundle
All plans are billed annually and include a 14-day free trial with no card required. A HIPAA Business Associate Agreement is available on Advanced and higher. The AI Receptionist is a separate add-on, not part of Core, Advanced or Ultra.
Ooma Office
Published tiers: Essentials $19.95, Pro $24.95, Pro Plus $29.95 per user per month, each listed as no contract necessary. Essentials includes a Virtual Receptionist, mobile app, one toll-free number and digital fax; Pro Plus adds AI Transcriptions, AI Insights, CRM integration, text messaging up to 1,000/month and videoconferencing up to 100 participants. Ooma sells desk phones and adapters separately; hardware is not required to use the service.
The figure above counts subscription seats only, at Core annual pricing: 25 x $24 x 36 = $21,600. It excludes taxes and telecom fees, usage, hardware and add-ons such as the AI Receptionist. Model your own configuration with the VoIP TCO calculator.
Feature parity
Where Ooma Office is the better fit
Ooma publishes a lower entry price, $19.95 per user per month against DialPhone’s $24, and sells with no contract. A Virtual Receptionist is included from the entry Essentials tier rather than sold as an add-on, and Pro Plus at $29.95 adds AI Transcriptions, AI Insights and CRM integration, still below DialPhone Advanced at $34.
Ooma’s limitation
Ooma publishes no contact-center product comparable to DialPhone Contact Center, and we could not locate a published uptime SLA or compliance documentation on its small-business pages.
Where DialPhone is the better fit
DialPhone adds HD video meetings for up to 200 participants, a contact-center product with three published per-agent tiers, and a HIPAA BAA offered on Advanced and higher.
DialPhone’s limitation
DialPhone is more expensive at entry, $24 against $19.95, and charges $59 a month extra for its AI receptionist where Ooma includes a Virtual Receptionist from its entry tier. DialPhone was founded in 2024.
What the higher price buys
Being more expensive is only a problem if nothing comes with it, so here is what does, stated as inclusions rather than savings. DialPhone Core at $24 carries unlimited US and Canada calling, HD video for up to 200 participants, AI live captions and transcription, business SMS, online fax, free number porting and 24/7 support. Advanced at $34 adds AI SMS drafting, Proactive Workflow Automation, CRM integrations and a HIPAA Business Associate Agreement at no surcharge.
Contact Center is published per agent at $65, $95 and $145 and sits on the same agreement as the phone system, covering more than 20 digital channels alongside voice. Teams of 25 seats or more get white-glove migration including call-flow recreation and parallel cutover. The 99.999% monthly uptime target with service credits is contractual, in Terms §6. None of that makes DialPhone the cheapest option, and this page does not claim it is.
When to pick Ooma Office
Choose Ooma Office if:
- Ooma Essentials is $19.95 per user per month with no contract, below DialPhone Core at $24
When to pick DialPhone
Choose DialPhone if:
- Remote/hybrid teams using existing hardware (laptops, mobile, BYOD IP phones from any vendor), AI receptionist, deeper CRM integration
- You want an AI receptionist from the same vendor as your phone system (Smart Virtual Concierge, $59/month add-on)
- You want unlimited US and Canada calling in the base plan without an enterprise agreement
- You want a contractual 99.999% monthly uptime target with service credits (Terms section 6)
- You need a HIPAA Business Associate Agreement (available on Advanced and higher)
What’s NOT in the comparison
Some features that don’t differ meaningfully between the two for SMB use cases:
- Mobile apps (both have iOS/Android)
- Standard VoIP features (call forwarding, voicemail, hold music)
- Number porting (both support; timelines depend on the losing carrier, number type and documentation)
If a comparison post tells you “DialPhone has voicemail and Ooma Office has voicemail”, yes, every vendor does. The differences that matter are above.
How we built this comparison
Competitor pricing, plan names and feature availability are taken from the vendor’s own current pricing, product, security and legal pages. Every figure used is listed with its source, publisher and check date in the Sources section of this page. Where a vendor does not publish a figure, this page says so rather than estimating one.
DialPhone figures come from the DialPhone pricing page and the Terms of Service. If you find a discrepancy, tell us and we will correct it.
Verdict
There is no automatic winner here. DialPhone fits teams that want business phone and contact center from one vendor with published per-seat pricing and an AI receptionist available as a paid add-on. Ooma Office fits teams that match its own strengths (SMB hardware-focused VoIP). Price both at your real seat count against each vendor’s current pricing page before deciding.
The honest test: run both through the TCO calculator at your actual seat count + use case. Whichever lands lower for your spec is the right answer.
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Compiled by Darshan M, Growth Operations · DialPhone. The 2026 SMB VoIP pricing dataset cited above is published openly at dialphone.com/data/voip-pricing-2026.json under CC BY 4.0.