Our take, in brief
Shortlist Zadarma for configurable cloud PBX and regional bundles, RingCentral for calling plus team meetings and integrations, and Grasshopper for a simpler business number on existing devices.
Compare at a glance
| Option & fit | Price snapshot | Watch out for |
|---|---|---|
| ZadarmaConfigurable PBX with regional bundles | Office USA/Canada: $44 per 30-day plan | 10 users does not mean 10 simultaneous unlimited outgoing calls. |
| RingCentral RingEXTeams combining calls, meetings and chat | Core: $20/user/mo annually; $30 monthly | Per-user pricing grows with headcount; taxes and other fees may apply. |
| GrasshopperA separate business identity on your existing phone | Pricing page advertises plans from $14/mo | Verify the billing term and user/number allowances for your chosen plan. |
USD unless noted. Annual prices are monthly equivalents paid upfront; products have different scopes. On a small screen, scroll the table sideways.
A closer look at your options
Shown by use case, not ranked by score. No star ratings or performance tests.
Zadarma
The Office USA/Canada page lists four outgoing channels for unlimited US/Canada calls, 500 included minutes to specified other countries and 200 incoming toll-free minutes. It advertises a $39/month equivalent with annual prepayment. Number availability, destination restrictions and extra usage need checking. A currency-label inconsistency on the regional page is another reason to confirm the checkout total.
10 PBX/CRM users, four local numbers and a toll-free number.
10 users does not mean 10 simultaneous unlimited outgoing calls.
Official sources: Zadarma Office USA/Canada plan Zadarma PBX plans and regional conditions
Affiliate / referral link · Terms and eligibility apply.
RingCentral RingEX
The published Core plan includes on-demand call recording and 100 toll-free minutes. Advanced adds CRM integrations. Unlimited calling is limited to US/Canada markets and acceptable-use rules apply. Business SMS registration and other fees can affect the real total.
Core includes domestic calling, meetings and team communication.
Per-user pricing grows with headcount; taxes and other fees may apply.
Official sources: RingCentral RingEX pricing and conditions
Ordinary vendor link · No affiliate tracking added by SmartBizGear.
Grasshopper
Grasshopper focuses on business calls and texts without adopting a broad collaboration suite. Its pricing page advertises a seven-day trial with no card. Some team plans promote unlimited users, but do not assume every entry plan has that allowance. International calling and optional services need separate checking.
Business numbers, greetings, forwarding and mobile/desktop apps.
Verify the billing term and user/number allowances for your chosen plan.
Official sources: Grasshopper pricing Grasshopper phone features
Ordinary vendor link · No affiliate tracking added by SmartBizGear.
Check the things a price table cannot tell you
Before porting your number, confirm porting eligibility, emergency-calling support for each location, number-registration requirements, business texting registration and what happens during an internet or power outage. Do not cancel your old service before the port is complete.
Make a total-cost worksheet
List users, phone numbers, simultaneous calls, outbound destinations, toll-free usage, handsets, recording retention and any CRM connection. A bundled account price and a per-user price are not directly comparable. Five RingEX Core seats at the published annual rate are $100/month equivalent before taxes and fees; that is a different product scope from Zadarma’s regional bundle.
Run a pilot before moving the main line
Use a temporary number to check call quality on your actual Wi-Fi and mobile data, missed-call handling, voicemail delivery and after-hours routing. These are suggested checks, not tests we have performed.
Sources & research notes
Official vendor pages checked November 10, 2026. Prices and features are snapshots, not live quotes. Confirm location, currency, billing term, taxes, fees and eligibility with the provider.
- Zadarma Office USA/Canada plan
- Zadarma PBX plans and regional conditions
- RingCentral RingEX pricing and conditions
- Grasshopper pricing
- Grasshopper phone features
No paid test accounts were used. We have not independently verified vendor performance claims. Our method →