Business phone comparison · September 2026

Microsoft Teams Phone vs Calilio: Numbers, Routing & Pricing

A growing service team needs local customer numbers and a reliable call flow in new markets. Should it buy virtual numbers through Calilio, or arrange external calling inside Microsoft Teams? This guide compares number eligibility, country rules, call quality, team management and the full cost of making calls.

Quick answer: Start with Calilio if country-specific virtual numbers are the immediate requirement and your team is not tied to Microsoft for calling. Start with Teams Phone if workers already use Teams and your preferred PSTN provider supports every country and number type you need. Test the exact number before deciding.

Microsoft Teams Phone

Calling inside Teams for eligible users, with a supported Microsoft Calling Plan, Operator Connect or Direct Routing provider for external calls.

G2 logo4.4/5 on G2 for Microsoft Teams overall; it is not a Teams Phone-only rating.

Explore Teams Phone

Calilio

Cloud calling, virtual numbers and routing across supported markets. Confirm live inventory, identity requirements, rates and messaging for each number.

G2 logo4.7/5 on G2 for Calilio (91 reviews in the retrieved snapshot).

Explore Calilio numbers

Microsoft Teams Phone vs Calilio at a glance

Buying questionTeams PhoneCalilio
Main fitBusiness calling within the Teams workspaceVirtual numbers and customer calls across supported countries
Public callsEligible phone entitlement plus PSTN connectionPlan, suitable virtual number and available call credit
Country selectionMicrosoft/carrier number eligibility varies by regionCheck number inventory, regulations and documents by country
Pricing structureMicrosoft foundation, Phone license/bundle, PSTN costsSeat plan plus numbers, usage and eligible add-ons
AdministrationMicrosoft tenant and operatorCalilio dashboard, number and wallet management
First-day testAssign number and verify live external callActivate target-market number and test incoming/outgoing rights

Three checks before buying a virtual number

① Is that number available?

Confirm the actual local, mobile or toll-free number type in the exact country and area.

② What can it do?

Verify inbound calling, outbound caller ID, two-way SMS and portability individually.

③ What must you provide?

Ask which business or personal ID, local address and registration papers are required.

Important: “100+ countries” is a broad catalog claim. It is not a promise that every area code, SMS capability or local regulatory permission is available to every buyer.

Calilio virtual numbers vs Teams Phone: international coverage

For Calilio, use the country-coverage checker and request an availability confirmation for the precise number type. Local, mobile and toll-free numbers can differ in documentation, activation time, SMS support and caller ID. Some countries require proof of ID, local address or business registration. Check the current inventory before promising customers a local line.

Teams Phone reaches the public telephone network using a Microsoft Calling Plan or an eligible operator via Operator Connect or Direct Routing. The right connection depends on your geography, carrier agreement and number needs. If you already operate in Microsoft 365, map each location before deciding that you need to move all calling to a new platform.

Country worksheet: Market → number type → documents → monthly rental → inbound route → outbound caller ID → SMS → porting → emergency calls. Fill one row per country using provider confirmation.

See our guides to VoIP phone numbers and call forwarding for the underlying concepts.

Detailed feature breakdown: audio, routing, growth and integrations

FeatureTeams PhoneCalilioTest in your location
Call qualityDevice, network, Microsoft client and chosen PSTN routeCalilio app, internet connection and carrier routeReal inbound/outbound calls at peak hours
Call routingAuto attendants and queues in eligible configurationIVR, business hours, forwarding; confirm planGreeting, transfer and after-hours fallback
ScalabilityLicensed users, carrier coverage, administrationAdd users, numbers and wallet balanceQuote 3, 10 and 50 users in all markets
IntegrationsMicrosoft 365 presence, identity and eligible appsCheck actual CRM/API integration and tierOne lead from call to contact history
SMSConfirm carrier and integration, not assumedVaries by number type and market; per-segment chargesTwo-way message and registration requirements
Recording/analyticsLicense, policy and optional tools varyCheck included tier and storageConsent, access permissions and retention

Calilio pricing vs Teams Phone: the full three-user bill

Calilio currently lists Standard at $15/user/month on monthly billing or $12/user/month annually. Its pricing also lists Premium at $35/user/month monthly or $28/user/month annually; enterprise pricing is custom. Number rental, call minutes and SMS segments are separately priced by country and number type. Its site says the subscription includes an initial $1 credit and that calls/SMS require wallet funds once applicable included usage and credit have been exhausted. Verify the exact current promotion and allowances at checkout.

Three-person exampleAdvertised monthly equivalentStill to add
Calilio Standard, monthly3 × $15 = $45Numbers, inbound/outbound minutes, SMS and extras
Calilio Standard, annual3 × $12 = $36Numbers, usage and the annual commitment
Calilio Premium, annual3 × $28 = $84Number and usage charges; check higher-tier features
Teams Phone Standard US benchmark3 × $10 = $30 on annual billingEligible Teams/Microsoft foundation plus PSTN and other needs

Better cost formula: seats + each number’s rental + estimated inbound and outbound minutes by destination + SMS segments + required add-ons and taxes. Get matching quotes for your target countries and identical call volumes. A “number from $2/month” does not imply your selected type and country costs $2.

Microsoft Teams Phone vs Calilio: pros and cons

Teams Phone pros

  • Calls live where Microsoft staff already work.
  • Enterprise administration and multiple eligible PSTN paths.
  • Auto attendants and queues for structured routing.

Teams Phone cons

  • Licensing and country-by-country carrier planning.
  • More setup when you only need a single new customer number.
  • International numbers and SMS require separate checks.
Review Teams Phone

Calilio pros

  • Virtual-number catalog across many markets.
  • Cloud calling and configurable inbound handling.
  • Available independently of a Microsoft calling deployment.

Calilio cons

  • Number rental and usage can exceed the seat price.
  • Document, SMS and caller ID rules vary by number.
  • Wallet funding and rate checks need operational attention.
Check Calilio availability

What independent reviews and a customer case show

G2 logoG2 showed 4.7/5 for Calilio from 91 reviews in the retrieved snapshot. Microsoft Teams is around 4.4/5 overall on G2, which is not a Teams Phone-only score. The Calilio review page can help identify ease-of-setup and support questions; compare recent reviews with your target market before buying.

Named case: Calilio’s Visionary Marketing case describes a remote-first agency using virtual numbers and browser/mobile calling for international clients. Its published results are vendor reported, so treat them as an example of a workflow to test rather than a guaranteed outcome. Ask your team to run the same inbound-to-follow-up sequence with your proposed number.

Implementation checklist for a new Calilio or Teams number

  1. List target countries, local/mobile/toll-free type, number of staff and estimated monthly calls.
  2. Confirm documents, porting eligibility, SMS permissions and outbound caller ID in writing.
  3. Build the same menu, business hours, voicemail and missed-call fallback in both options.
  4. Make live calls and texts from each country-specific number and inspect displayed caller ID.
  5. Verify emergency calling, recording consent, user permissions and customer data access.
  6. Quote all seat, number, call, message, wallet and add-on charges on matching terms.

For routing design, read our call queues and voicemail to email guides.

Verdict: should you choose Calilio or Teams Phone?

Choose a Calilio trial if acquiring and operating the exact customer-facing numbers is the immediate challenge and its country, documents and usage rates meet your needs. Choose Teams Phone if staff already use Teams and you can source the target number types through a suitable operator. A three-country pilot with one real number per country will tell you more than a headline count of countries or an entry price.

Explore Calilio in your target market Explore Microsoft Teams Phone

Microsoft Teams Phone vs Calilio FAQs

Which is better for a growing international service team?

Calilio is worth testing if you need specific international virtual numbers and flexible call handling. Teams Phone suits a Microsoft-centered workforce with an eligible PSTN provider in each target country. Verify numbers, documents and costs market by market.

Is a Calilio virtual number included in the user price?

Do not assume every number is included. Calilio says numbers and call/SMS usage are generally billed separately from the subscription; check any promotion or eligible free-number offer and the exact country.

How much is Calilio Standard?

Calilio advertises Standard at $15 per user per month on monthly billing or $12 per user per month when billed annually. Numbers and usage can add charges.

Does Calilio offer a free number?

A promotional or plan-specific number benefit may apply to eligible US, UK or Canadian numbers. It does not mean every number type in every country is free. Verify the live checkout.

How do I check a Calilio number in my target country?

Check its live country-coverage and pricing tools for inventory, local/mobile/toll-free type, documents, inbound and outbound permissions, SMS, porting and activation time.

Are Calilio calls unlimited?

Do not treat the subscription as unlimited international calling. Calilio describes pay-as-you-go number, calling and messaging charges after applicable credit or bundle allowances.

Can Microsoft Teams Phone use an international number?

Potentially, through eligible Microsoft Calling Plans, Operator Connect or Direct Routing, depending on country, number type and provider. Confirm each target country before committing.

Does a Teams meetings license include PSTN calling?

No. Outside calling needs an eligible Teams Phone license or bundle and a supported PSTN connection. A regular meeting account is not itself a public phone line.

Which provider has better call quality?

Neither service can guarantee better voice quality in every place. Test identical locations, internet connections, devices and destination numbers, including calls during peak hours.

Can Calilio route calls after hours?

Calilio markets business-hours and IVR routing features, but availability may depend on the plan and number setup. Test a closed-office menu, missed-call overflow and voicemail.

Can I port an existing number into Calilio?

Availability depends on the country, number type and losing provider. Request a written port-eligibility check and keep the existing service active until the port completes.

Does Calilio support SMS in every country?

No assumption should be made from number coverage alone. Messaging capabilities, verification, registration and rates differ by country and number type.

Can I use Teams meetings while Calilio handles calls?

Yes. Teams can remain the meeting and internal collaboration tool while Calilio handles supported customer numbers and calls. Budget and administer the two services separately.

What costs should be on a three-user quote?

Include three seats, each required number rental, inbound/outbound minutes by destination, SMS segments, recording or AI add-ons, taxes and any verification or setup fees.

Does Calilio have independent user reviews?

Yes. G2 displayed 4.7/5 from 91 Calilio reviews in the retrieved review snapshot. Ratings and counts change; read recent reviews relevant to your country and use case.

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