The best Microsoft Teams Phone alternatives depend on whether you want to replace external calling, the employee workspace or a specialized customer-phone workflow. RingCentral, Nextiva, Zoom Phone, Dialpad and GoTo Connect are relevant for business communications. KrispCall, Calilio and CallHippo are worth evaluating for more focused calling, international-number or sales requirements. Replacing Teams Phone does not necessarily mean abandoning Teams chat, meetings or Microsoft 365. A business can retain its existing workspace and evaluate a different calling service. The important comparison is the full telephony arrangement and the work employees need to perform. This guide compares eight Microsoft Teams Phone alternatives and competitors, including Calilio and CallHippo. It explains how to choose a Teams Phone replacement and compare licenses, PSTN connectivity, migration effort and total cost. It does not claim firsthand testing or a universal winner. Teams Phone Is a Calling Layer, Not the Whole Teams Workspace Microsoft Teams Phone supplies phone-system capabilities within Teams. Connecting to public telephone numbers requires the appropriate PSTN arrangement, such as Microsoft Calling Plans, Operator Connect, Direct Routing or Teams Phone Mobile, subject to eligibility and availability. Before comparing alternative business phone systems, identify which parts of your current setup you want to replace. A problem with carrier coverage may call for a different PSTN arrangement rather than a complete departure from Teams Phone. A problem with the employee calling workflow may justify evaluating another phone service. Keep Teams, change the carrier: Evaluate eligible PSTN options and ownership of support, numbers and usage. Keep Teams, use another phone app: Establish how employees will handle calling alongside retained collaboration tools. Replace the wider communications suite: Compare calling, meetings, messaging, administration and the migration effort. Add specialized sales or support: Compare the actual dialer, CRM, queues and supervisor tools rather than assuming every employee needs a new suite. Example: A consultancy satisfied with Teams meetings may want a separate shared customer-phone workspace. A multinational office may instead need different carrier coverage. A sales team needing campaign dialing has another requirement. These situations should produce different comparisons. Our VoIP vs UCaaS guide explains the scope of a phone service versus a wider communications suite. Best Microsoft Teams Phone Alternatives and Competitors at a Glance Use this Microsoft Teams Phone competitor comparison to match documented product scope to practical buying needs. Number geography, eligible plans and integrations should be confirmed for the proposed account. Eight Teams Phone competitors matched to a replacement requirement Provider Consider It For Check Before Switching Pricing & Trial RingCentralExpert Rating:★★★★★★★★★★4.7/5 Broader communications and centralized administration. RingEX versus contact-center needs; verify any Teams connection. Request current regional pricing Start 14-Day Free Trial NextivaExpert Rating:★★★★★★★★★★4.4/5 Business calling with customer-engagement options. Eligible phone, engagement or contact-center package. Core: $15/user/monthQualifying annual offerTrial on eligible packages Start 14-Day Free Trial KrispCallExpert Rating:★★★★★★★★★★4.5/5 Shared customer history, supported international numbers and eligible sales tools. Plan, usage, CRM behavior and AI add-ons. Starter: $12/user/monthBilled annually Check Pricing Zoom PhoneExpert Rating:★★★★★★★★★★4.6/5 Telephony for an existing Zoom workplace. Retained Microsoft licenses, region and calling plan. Request regional plan pricing Check Pricing DialpadExpert Rating:★★★★★★★★★★4.5/5 AI-assisted calls and sales/support products. Connect, Sell and Support differ. Request Connect pricing Start 14-Day Free Trial GoTo ConnectExpert Rating:★★★★★★★★★★4.4/5 Phone routing with meetings and messaging. Regional calling allowances and contact-center scope. Request a regional quote Check Pricing CalilioExpert Rating:★★★★★★★★★★4.3/5 A phone-focused workspace and supported international numbers. Feature tier, user limits, allowance and metered usage. Standard: $12/user/monthBilled annually Check Pricing CallHippoExpert Rating:★★★★★★★★★★4.2/5 Sales-oriented calling and CRM/dialer requirements. Exact dialer, product, seats, number charges and usage. Request the required package Check Pricing About these ratings and offers: Expert ratings are editorial assessments of the features, business fit, pricing structure and limitations discussed in this guide, not customer-review averages or hands-on test results. Published price references carry the billing and eligibility conditions described below; confirm the current quote. Nextiva’s 14-day trial applies to eligible NextivaONE packages. Confirm trial availability and included features before signing up. 1. RingCentral: Microsoft Teams Phone Competitor for Growing Businesses RingCentral RingEX combines calling, messaging, video meetings, business SMS and fax. It is a relevant Microsoft Teams Phone competitor when several offices or departments need a common communications environment. Why consider switching: You want to evaluate centralized administration and collaboration alongside phone handling. A growing business with separate sales, operations and reception teams should compare how users, permissions and departmental calls are managed. The trade-off: RingEX does not automatically include the full capabilities of RingCentral’s contact-center products. Advanced shared customer messaging can also depend on the bundle or add-on. Internal team chat is not equivalent to a customer SMS inbox. Test before buying: Build a sales queue, route an unanswered call to a backup department and have two employees handle the same customer message. Ask the salesperson to identify the exact license and add-ons used in the demonstration. May not suit: A small business that needs only shared calls and texts and would use little of a broader suite. Request a current quote for the required product rather than assuming the lowest RingCentral plan replaces every Teams Phone feature. Read our RingCentral review. Start 14-Day Free Trial 2. Nextiva: Teams Phone Alternative for Business Communication Nextiva’s small-business offering combines voice, video, business SMS, routing and team communication tools. As an alternative to Microsoft Teams Phone, it is worth evaluating when the goal is to connect your office phone service with other employee or customer interactions. Why shortlist it: Your team wants business calling within a wider communication environment and needs to compare how different feature tiers support customer handling. Main trade-off: The Core plan and higher customer-engagement packages are not interchangeable. Confirm your required recording, reporting, messaging allowances and integrations against the quoted tier. Demo task: Route a call during business hours, handle an unanswered call, send a customer follow-up and locate the interaction afterwards. Check whether each step is available in the proposed plan. Pricing context: Obtain the eligible plan, billing term and complete quote. Nextiva’s advertised small-business offer has eligibility and agreement conditions; it is not an enterprise contact-center rate. May not suit: A buyer whose main requirement is a specialized outbound sales workflow that has not been demonstrated. See our Nextiva review. Start 14-Day Free Trial 3. KrispCall: Teams Phone Alternative for Shared Calling and International Numbers KrispCall deserves a closer look than a simple “cheap international number” description. Its offering combines a Unified Callbox with phone routing, customer messaging, CRM connections and plan-specific sales tools. As a Teams Phone replacement, it can be relevant to a small customer-facing team or a growing sales operation, provided the eligible package covers the work. What the Unified Callbox Adds The Unified Callbox brings calls, messages, voicemail and customer context into one workspace. The practical value is continuity: an employee can review the conversation before following up instead of searching separate records. Shared access, notes and tags should be demonstrated with the actual team permissions. Example: A customer calls while the account owner is unavailable. Another employee reviews the existing conversation, adds a note and handles the follow-up. During evaluation, check whether the second employee can see the necessary context and whether responsibility remains clear. Sales Tools and CRM Connections KrispCall markets a sequential power dialer for working through outbound lists. Sequential dialing is different from parallel or predictive dialing; compare it with the specific dialing workflow your team needs. Its HubSpot integration describes contact synchronization and call activity logging. The useful comparison is whether your contact match, notes, ownership and follow-up appear correctly in your CRM configuration. Ask for a live demonstration, including duplicate contacts and missed calls. For an outbound team, test importing a small list, placing calls, recording outcomes and reviewing the resulting CRM activity. Ask how unsuccessful calls and retries are handled, and which license is required. Choose the Eligible KrispCall Plan The current plan names are Starter, Advance, Max and Enterprise. The annual per-user monthly rates displayed are $12, $32 and $48 for the first three. Starter allows up to five users, Advance up to 50, and Max has no member cap. Enterprise is quoted separately. Advance’s plan summary adds recording, transfers, a power dialer, bulk SMS and Salesforce integration. Call transcription and summaries are marked as add-ons. A Teams Phone team needing those functions should compare the relevant Advance or higher quote rather than assuming Starter supplies the complete replacement. International Numbers and the Real Usage Bill Confirm the exact country, number type, document requirements, caller ID and messaging capability before paying. A global-coverage headline does not establish that every country offers the same functionality or that every desired number is immediately available. KrispCall’s public pricing currently describes both included allowances and pay-as-you-go charging. Obtain written confirmation of the allowances applied to your account, eligible destinations, overage rates, number rental and messaging charges. Treat unlimited claims as route-specific and subject to fair-use terms, not unlimited worldwide service. Best-fit scenario: A customer-facing team wants shared history, an eligible international number and demonstrated CRM or sequential dialing behavior. KrispCall belongs on that shortlist. Main limitation to resolve: Advanced contact-center requirements such as complex queue reporting or workforce processes need a specific demonstration. Do not infer them from general “contact center” marketing. Read our KrispCall review. Check Pricing 4. Zoom Phone: Teams Phone Competitor for Teams Already Using Zoom Zoom Phone brings business telephony into the Zoom environment. It is an alternative to Microsoft Teams Phone worth considering when employees already work in Zoom and you want to evaluate whether phone service can fit that existing setup. Why consider switching: Keeping communication in a familiar environment may reduce training work. That is a reason to evaluate the product, rather than proof that it is automatically the best fit. The trade-off: A Zoom meetings subscription does not automatically provide external business phone service. Metered and unlimited domestic calling arrangements also differ, while international usage and country eligibility need separate checking. Test before buying: Try queues, transfers, delegation and mobile calls with normal employees. Verify SMS availability for the proposed country and number type. May not suit: A full replacement for Teams Phone contact-center work unless the relevant Zoom contact-center product is separately evaluated. Include the existing Zoom subscriptions you will keep in the total cost calculation. Explore Zoom for 1–50 users or explore Zoom for larger teams, 50+ users. Confirm the appropriate offer for a team of exactly 50 users. Read our Zoom Phone review. Check Pricing 5. Dialpad: Teams Phone Competitor for AI-Assisted Calling Dialpad is worth evaluating as a Teams Phone alternative when calling and AI-assisted communication are central to your replacement decision. The important distinction is between Dialpad Connect for business communications, Dialpad Sell for sales workflows and Dialpad Support for customer support. Why consider switching: Your team has a specific requirement for call transcription, follow-up information or a sales/support process that you want demonstrated in the working environment. The trade-off: “Dialpad” is a brand, not one interchangeable subscription. A Connect quote should not be treated as a replacement for Teams Phone contact-center operations without checking the relevant product. AI functions, integrations and management tools depend on the purchased package. Test before buying: Run a normal customer call in your working language. Check the customer name, dates, commitments and next steps in the output, then show how staff correct mistakes and access the record. May not suit: A team choosing on an AI headline alone. Accuracy, permissions, retention and the resulting staff workflow matter more than the number of AI features on a comparison page. Ask for pricing against the actual Connect, Sell or Support requirements. Read our Dialpad review. Start 14-Day Free Trial 6. GoTo Connect: Cloud Phone System Alternative for Office Routing GoTo Connect offers a cloud phone system alongside meetings and messaging. It is a relevant Teams Phone alternative when business-hours routing, departments and distributed employees are the main buying priorities. Why consider switching: Your team needs a phone system whose routing and administration fit the way incoming calls actually move through the business. The trade-off: Phone System and contact-center offerings have different scope. Calling allowances also vary by region and number type; an international coverage headline is not a promise that every overseas destination is included. Test before buying: Recreate your opening hours, holiday schedule, reception menu and unavailable-employee fallback. Check what happens when the primary employee’s mobile app is offline. May not suit: A buyer who needs a precise low entry cost before discussing region, users and package. Obtain a quote that identifies international routes, toll-free allowances, required customer channels and any advanced reporting separately. Read our GoTo Connect review. Check Pricing 7. Calilio: Business VoIP Alternative for International Number Requirements Calilio is another Teams Phone alternative to evaluate when a business wants cloud calling and access to numbers in supported international markets. It offers an additional comparison for buyers whose decision centers on telephony rather than a broad collaboration suite. Why consider switching: You want a second quote for the country, number and shared calling requirements that prompted the search, rather than relying on one international-number provider. The trade-off: Subscription price, included allowances and metered usage are separate considerations. A country appearing in a coverage list does not prove that the desired number is available immediately or supports every messaging function. Test before buying: Verify your number, inbound calls, outgoing caller ID and customer follow-up. Demonstrate any required recording, reporting or integration in the proposed tier. May not suit: An advanced customer-experience deployment without a detailed capability check. Also confirm the plan’s user limit before estimating the subscription for a growing team. Read our Calilio review. Check Pricing 8. CallHippo: Teams Phone Competitor for Sales Calling CallHippo belongs on the shortlist when the requirement is a dedicated customer-calling or sales process. Its offering includes business phone and dialer capabilities, and its pricing page describes integration options for connecting calling with business software. Why consider it: Representatives need a phone workflow tied to customer records rather than only external calls within a collaboration workspace. Compare how the proposed product handles calls, outcomes and follow-up. The trade-off: Product scope and dialer capabilities are not established by the lowest entry headline. Confirm the exact package, dialing mode, integrations, seat conditions and usage charges. Number access does not prove that every number supports SMS or the desired caller ID. Demo task: Work through a small representative list, record outcomes and inspect the resulting CRM activity. Test missed calls and another employee taking over the customer follow-up. May not suit: A replacement for the full Microsoft collaboration environment, or an advanced contact-center operation without a specific capability demonstration. Check Pricing Which Microsoft Teams Phone Alternative Fits Your Business? Use your calling requirements to narrow the shortlist. A suitable Microsoft Teams Phone replacement should improve a specific daily task and fit the licenses, carrier arrangements and collaboration tools your organization plans to retain. Teams Phone Alternatives for Small Businesses KrispCall and Calilio are useful candidates for a small business evaluating a focused customer-phone workspace or supported international numbers. Nextiva provides another comparison when wider business communication is part of the requirement. Test shared access, missed-call coverage and the proposed feature tier before choosing a small-business phone system alternative. Microsoft Teams Phone Competitors for Remote Teams Compare RingCentral, Zoom Phone and GoTo Connect when distributed employees need calling within a broader communication environment. Have remote colleagues answer and transfer calls on their normal devices, then find the customer record and return a missed call. If Teams chat and meetings will remain, include the extra app and administration work in the decision. Teams Phone Alternatives for International Calling and Virtual Numbers KrispCall and Calilio belong on the shortlist when a supported overseas number is central to the search. Compare number availability, documentation and destination charges separately. Before moving to another VoIP provider, also check whether an eligible PSTN arrangement can meet those requirements while retaining Teams Phone. Cloud PBX Alternatives for Growing and Multi-Location Businesses When comparing cloud phone alternatives to Teams Phone across several offices, ask each provider to demonstrate adding a branch, assigning numbers and managing department permissions. Evaluate how local teams handle calls and how central administrators maintain consistent settings. Include ongoing administration and staff training when deciding whether a competing phone system offers a better fit. Teams Phone Competitors for Sales and CRM Workflows Evaluate KrispCall, Dialpad and CallHippo against the representative’s actual process: finding the contact, dialing, recording the outcome and completing the follow-up. Identify the required product and dialing mode before comparing quotes. A dedicated sales-calling alternative may fit one department without requiring every employee to replace the Microsoft workspace. Affordable Microsoft Teams Phone Alternatives: Pricing and Total Cost To identify a cost-effective Teams Phone alternative, calculate the licenses and services your organization actually pays for. Teams Phone licensing alone should not be treated as the complete price of external calling, and existing Microsoft 365 spending should not be counted as a saving if it continues after the move. Workspace licenses: Identify Microsoft subscriptions retained regardless of the phone choice. Phone-system entitlement: Check what is already included and what must be purchased. PSTN service: Include the Calling Plan, operator or Direct Routing arrangement, numbers and usage. Infrastructure and management: Include relevant SBC, provider management, provisioning and support costs. Specialized tools: Include sales, queue, contact-center, recording or AI requirements. Transition: Add number migration, device changes, staff training and overlapping subscriptions. Illustrative scenario: Suppose a business pays $300 per month for collaboration subscriptions it will retain, plus $180 for its calling arrangement. A proposed $150 phone service offers a potential $30 calling difference, not a $330 saving. Additional usage, features and transition costs still need to be checked. Compare current regional quotes in the same currency and billing term. Selected alternative annual rates, checked October 2, 2026, include KrispCall Starter at $12, Advance at $32 and Max at $48 per user per month; Calilio Standard at $12 and Premium at $28 per user per month. User limits, eligible tools, numbers and usage affect the complete bill. Nextiva’s advertised $15 Core offer has small-business eligibility and agreement conditions. Request a product-specific quote for RingCentral, Zoom Phone, Dialpad, GoTo Connect and CallHippo. Do not use an unrelated entry plan as a contact-center or sales replacement price. Teams Phone Replacement Options: Can You Keep Teams Collaboration? Yes, the evaluation can preserve Teams collaboration while changing the phone arrangement. Decide whether you want a different eligible carrier inside Teams or a separate phone workspace alongside it. For a carrier change, compare country coverage, numbers, calling allowances, support ownership and migration. For a separate phone app, test how employees move between the apps and whether customer records remain accessible. When a provider advertises a Teams integration, ask what it actually does: calling delivery, an embedded dialer, alerts, contact synchronization or another connection. Those are different capabilities and may require different licenses. Demo task: Receive a customer call, identify the contact, transfer to a colleague and find the resulting record. Show this on the exact devices and integration being quoted, rather than a generic provider app. Compare Teams Phone Competitors for Queues, Sales Dialers and Customer Messaging A business phone system and a contact center have overlapping features, but they are not interchangeable purchases. Define the queue, supervisor and reporting requirements before evaluating the relevant package. For sales, specify the dialing mode, list handling, outcomes and CRM actions. Sequential power dialing, parallel dialing and predictive dialing differ. For support, recreate waiting callers, an unavailable agent, a transfer and a missed-call follow-up. Customer SMS is also different from internal Teams chat. If shared texts are essential, confirm number eligibility, registration, permissions and conversation ownership in the proposed service. Our omnichannel contact-center guide helps define agent and channel requirements. A longer feature list does not replace a successful demonstration. Choosing a Teams Phone Replacement: Devices, Coverage and Call Quality Confirm desk-phone and headset compatibility by exact model. A device used with Teams is not automatically supported by another provider. Include replacement and provisioning costs where applicable. Separate number availability, calling destinations, employee locations and messaging support. Verify emergency-calling requirements and location configuration for the proposed deployment with the provider. Run normal calls on employee devices, headsets and connections during typical workload. Network congestion and unsuitable hardware can affect multiple vendors. For AI features, verify names, numbers and commitments and check retention, permissions and charges. When Keeping Microsoft Teams Phone Makes Sense Retain Teams Phone when staff benefit from its place in the existing Microsoft workspace and the current calling arrangement meets requirements. Moving to another service can add another app and administration process without a clear gain. If the concern is carrier coverage or usage pricing, evaluate the eligible PSTN alternatives before replacing the phone system itself. If only a sales or support group needs additional tools, compare a focused solution for that group rather than assuming every employee must move. Keeping a working setup can be valuable. Compare current entitlements, full costs and demonstrated workflows before deciding that another provider’s advertised rate is better. Switching From Microsoft Teams Phone to an Alternative: Migration Checklist Phone-number porting does not automatically transfer recordings, history, queues, integrations or permissions. Identify which party owns each step. Inventory users, numbers, license entitlements, shared devices and existing PSTN services. Identify Microsoft subscriptions retained after the change. Review operator and service agreements, renewal dates and cancellation steps. Confirm portability, authorization requirements and timing for each number. Export or retain required records and verify import capabilities. Configure users, permissions, routing, fallback destinations and applicable location settings. Test integrations, customer messages and necessary registrations. Keep the existing service active until porting and essential functions are verified. For more guidance, see our VoIP provider comparison and provider selection guide. Frequently Asked Questions What Is the Best Microsoft Teams Phone Alternative? RingCentral, Nextiva, Zoom Phone, Dialpad and GoTo Connect are relevant for business communications. KrispCall, Calilio and CallHippo serve more focused calling or sales requirements. Your workflow, licenses and carrier arrangement determine the best fit. Are There Cheaper Alternatives to Microsoft Teams Phone? Another provider may offer a lower complete calling quote, but savings depend on your existing entitlements, PSTN arrangement and required replacement features. Compare the calling costs that will actually disappear with the competing service’s seats, numbers, usage and add-ons. Microsoft subscriptions retained after the move remain part of the budget. How Do I Compare Microsoft Teams Phone Competitors? Give each shortlisted provider the same user count, number requirements, calling destinations and essential workflows. Compare the complete quote and test routing, transfers, customer follow-up and administration. Include any Microsoft subscriptions you will retain when calculating the cost of a replacement. Should I Choose a Free Teams Phone Alternative? Distinguish a temporary free trial from an ongoing free service. Check whether an option covers business numbers, external calls, number porting, team access and support before considering it a phone-system replacement. A free chat or meeting app may address a different requirement. Is a Teams Phone Alternative Also a Microsoft Teams Alternative? Not necessarily. Teams Phone alternatives address business telephony; replacing Microsoft Teams more broadly also involves chat, meetings and collaboration. Define which services you want to change so that a phone-focused provider is evaluated against the right requirement. Do I Have to Stop Using Teams If I Replace Teams Phone? No. You can retain Teams collaboration and evaluate another calling service. You can also investigate a different eligible PSTN arrangement while retaining Teams Phone itself. Does Teams Phone Include External Calling Automatically? The deployment needs the appropriate PSTN service as well as phone-system entitlement. Check the actual licenses and Calling Plan, operator or Direct Routing arrangement before comparing costs. Are Calilio and CallHippo Relevant Teams Phone Competitors? Yes, for a phone-focused or specialized customer-calling requirement. Demonstrate the eligible feature tier, integrations and usage. Neither should be assumed to replace all Teams meetings, chat and Microsoft workspace functions. Is KrispCall Cheaper Than Teams Phone? That depends on the existing licenses, carrier costs, required KrispCall tier and usage. Compare the incremental calling spend and include Microsoft subscriptions that remain after the move. Can I Reuse My Teams Desk Phones? Confirm compatibility, provisioning and supported functions with the receiving provider for each exact model. Do not assume all Teams devices work with another service. Can I Keep My Phone Numbers? Often, subject to country, number type and receiving-provider eligibility. Confirm porting with the relevant carrier and keep the existing service active until transfer and essential functions are verified. Choose the Right Microsoft Teams Phone Alternative for Your Business Decide whether to change the carrier, use another phone workspace or replace broader communications. Shortlist two or three relevant providers, demonstrate the same work and compare the complete calling cost. Calilio and CallHippo are useful additions when the requirements fit their phone or sales workflows. If Teams Phone already meets the need well, retaining it remains a sensible outcome. Check KrispCall Pricing→Start RingCentral Free Trial→ Affiliate disclosure: VoIPCalling may earn a commission when you purchase through provider links on this page. Our recommendations consider product fit and business requirements.