{"industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"ucaas","label":"UCaaS","description":null,"schemaKind":null},"answer":{"id":"f7b5d5d8-aadd-4135-b31d-5ff0dbbf934e","slug":"what-ucaas-deployment-model-suits-enterprises-with-hybrid-infrastructure","question":"What UCaaS deployment model suits enterprises with hybrid infrastructure?","answerMarkdown":"Enterprises with hybrid infrastructure should pick a hybrid UCaaS model that keeps regulated voice and call recording on a private edge or on-premises session border controller, while routing meetings, messaging, and PSTN trunks through the public cloud [1][2]. About 88% of organizations now run hybrid IT, making this the default pattern for regulated or multi-site deployments [3].","answerText":"Enterprises with hybrid infrastructure should pick a hybrid UCaaS model that keeps regulated voice and call recording on a private edge or on-premises session border controller, while routing meetings, messaging, and PSTN trunks through the public cloud [1][2]. About 88% of organizations now run hybrid IT, making this the default pattern for regulated or multi-site deployments [3]. Segment fit matrix Feature Regulated enterprise Multi-site global Cisco/Avaya brownfield Private SBC for SIP trunking ✅ Required 🟡 Recommended ✅ Required On-premises call recording vault ✅ Required 🟡 Recommended 🟡 Recommended Cloud meetings and messaging ✅ Required ✅ Required ✅ Required Local survivability gateway ✅ Required ✅ Required ✅ Required SD-WAN with QoS marking ✅ Required ✅ Required 🟡 Recommended Direct routing to Microsoft Teams 🟡 Recommended 🟡 Recommended — Skip Phased migration tooling ✅ Required ✅ Required ✅ Required Key terms Hybrid UCaaS Provider model Deployment combining a cloud UCaaS tenant with on-premises session border controllers or local survivability gateways. Session border controller Technical dependency On-premises appliance that secures SIP signaling and provides PSTN failover for cloud voice. Local survivability Technical dependency Edge device that keeps internal calls running when the WAN link to the cloud UCaaS provider fails. Data residency Compliance requirement Regulatory rule requiring call recordings or PII to remain stored in a specific country or region. Cloud bursting Outcome metric Pattern where steady-state load runs on private infrastructure and spikes overflow to public cloud. Related questions How does UCaaS compare to on-premises PBX? /search?q=How+does+UCaaS+compare+to+on-premises+PBX%3F How do you migrate from on-premises PBX to UCaaS? /search?q=How+do+you+migrate+from+on-premises+PBX+to+UCaaS%3F How does UCaaS compare to Microsoft Teams for enterprise voice? /search?q=How+does+UCaaS+compare+to+Microsoft+Teams+for+enterprise+voice%3F Providers to consider Cisco Webex Calling https://www.cisco.com/site/us/en/products/collaboration/webex-calling/index.html Webex Calling is built for hybrid voice with explicit on-premises survivability and dedicated instance options. With 12+ million cloud calling users worldwide, it is the obvious fit when there is an existing Cisco UCM or CUBE footprint to preserve. Microsoft Teams Phone https://www.microsoft.com/en-us/microsoft-teams/microsoft-teams-phone Teams Phone supports Direct Routing through customer-owned SBCs, so enterprises can keep carrier contracts and PSTN breakout on-premises while running the call control in M365. With 320 million Teams MAU, the user-side rollout is mostly already done. RingCentral https://www.ringcentral.com RingCentral fits hybrid enterprises that want a managed cloud tenant plus BYO carrier through SBC integration. Ten years as a Gartner Magic Quadrant Leader signals the operational maturity needed for global multi-site hybrid rollouts.","answerHtml":"<p>Enterprises with hybrid infrastructure should pick a hybrid UCaaS model that keeps regulated voice and call recording on a private edge or on-premises session border controller, while routing meetings, messaging, and PSTN trunks through the public cloud <a href=\"https://northflank.com/blog/what-is-hybrid-cloud-deployment\" class=\"citation-ref\" data-citation-index=\"1\" target=\"_blank\" rel=\"noreferrer\">[1]</a><a href=\"https://www.ituonline.com/blogs/cloud-computing-deployment-models\" class=\"citation-ref\" data-citation-index=\"2\" target=\"_blank\" rel=\"noreferrer\">[2]</a>. About 88% of organizations now run hybrid IT, making this the default pattern for regulated or multi-site deployments <a href=\"https://newrelic.com/blog/infrastructure-monitoring/hybrid-cloud-deployment-models-examples\" class=\"citation-ref\" data-citation-index=\"3\" target=\"_blank\" rel=\"noreferrer\">[3]</a>.</p>\n","summary":"Hybrid enterprises should use hybrid UCaaS: keep regulated voice controls and recording at the edge while shifting meetings, messaging, and cloud services to public UCaaS.","publishedAt":"2026-06-15T14:29:18.879","verifiedAt":null,"editorialStatus":"APPROVED","lastReviewedAt":null,"nextReviewDueAt":null,"templateVersion":"v2","aliases":[],"confidenceScore":null,"confidenceLabel":null,"canonicalUrl":"https://northflank.com/blog/what-is-hybrid-cloud-deployment"},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"contributorOrganizationProfile":{"entityId":"ec39deab-44fe-48d8-9029-fefe993ab85a","legalName":null,"description":null,"websiteUrl":null,"imageUrl":null,"slogan":null,"subtitle":null,"facts":[],"coiNote":null,"foundingDate":null,"numberOfEmployeesText":null,"contactPoint":null,"address":null,"headquartersText":null,"organizationType":null},"contributorPerson":null,"sections":[{"id":"d5f9f7d3-7827-431c-88ff-9e85201af4b5","sectionKey":"segment_fit_matrix","sectionType":"table_section","heading":"Segment fit matrix","introMarkdown":null,"introHtml":null,"outroMarkdown":null,"outroHtml":null,"contentJson":{"rows":[{"cells":["Private SBC for SIP trunking","✅ Required","🟡 Recommended","✅ Required"]},{"cells":["On-premises call recording vault","✅ Required","🟡 Recommended","🟡 Recommended"]},{"cells":["Cloud meetings and messaging","✅ Required","✅ Required","✅ Required"]},{"cells":["Local survivability gateway","✅ Required","✅ Required","✅ Required"]},{"cells":["SD-WAN with QoS marking","✅ Required","✅ Required","🟡 Recommended"]},{"cells":["Direct routing to Microsoft Teams","🟡 Recommended","🟡 Recommended","— Skip"]},{"cells":["Phased migration tooling","✅ Required","✅ Required","✅ Required"]}],"columns":["Feature","Regulated enterprise","Multi-site global","Cisco/Avaya brownfield"]},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":0},{"id":"db38402a-93fe-43c8-befd-24343c2b343e","sectionKey":"key_terms","sectionType":"cards_section","heading":"Key terms","introMarkdown":null,"introHtml":null,"outroMarkdown":null,"outroHtml":null,"contentJson":{"cards":[{"badge":"Provider model","title":"Hybrid UCaaS","bodyMarkdown":"Deployment combining a cloud UCaaS tenant with on-premises session border controllers or local survivability gateways."},{"badge":"Technical dependency","title":"Session border controller","bodyMarkdown":"On-premises appliance that secures SIP signaling and provides PSTN failover for cloud voice."},{"badge":"Technical dependency","title":"Local survivability","bodyMarkdown":"Edge device that keeps internal calls running when the WAN link to the cloud UCaaS provider fails."},{"badge":"Compliance requirement","title":"Data residency","bodyMarkdown":"Regulatory rule requiring call recordings or PII to remain stored in a specific country or region."},{"badge":"Outcome metric","title":"Cloud bursting","bodyMarkdown":"Pattern where steady-state load runs on private infrastructure and spikes overflow to public cloud."}]},"configJson":{"colSize":3,"columns":3},"noteMarkdown":null,"noteHtml":null,"sortOrder":1},{"id":"ee1706e7-0b71-4b2b-9af2-68cb5569334c","sectionKey":"related_questions","sectionType":"cards_section","heading":"Related questions","introMarkdown":null,"introHtml":null,"outroMarkdown":null,"outroHtml":null,"contentJson":{"cards":[{"url":"/search?q=How+does+UCaaS+compare+to+on-premises+PBX%3F","title":"How does UCaaS compare to on-premises PBX?","bodyMarkdown":""},{"url":"/search?q=How+do+you+migrate+from+on-premises+PBX+to+UCaaS%3F","title":"How do you migrate from on-premises PBX to UCaaS?","bodyMarkdown":""},{"url":"/search?q=How+does+UCaaS+compare+to+Microsoft+Teams+for+enterprise+voice%3F","title":"How does UCaaS compare to Microsoft Teams for enterprise voice?","bodyMarkdown":""}]},"configJson":{"colSize":2,"columns":2},"noteMarkdown":null,"noteHtml":null,"sortOrder":2},{"id":"0c0b112b-2552-438d-a5fc-4b3f701b3156","sectionKey":"providers_to_consider","sectionType":"cards_section","heading":"Providers to consider","introMarkdown":null,"introHtml":null,"outroMarkdown":null,"outroHtml":null,"contentJson":{"cards":[{"url":"https://www.cisco.com/site/us/en/products/collaboration/webex-calling/index.html","title":"Cisco Webex Calling","bodyMarkdown":"Webex Calling is built for hybrid voice with explicit on-premises survivability and dedicated instance options. With 12+ million cloud calling users worldwide, it is the obvious fit when there is an existing Cisco UCM or CUBE footprint to preserve."},{"url":"https://www.microsoft.com/en-us/microsoft-teams/microsoft-teams-phone","title":"Microsoft Teams Phone","bodyMarkdown":"Teams Phone supports Direct Routing through customer-owned SBCs, so enterprises can keep carrier contracts and PSTN breakout on-premises while running the call control in M365. With 320 million Teams MAU, the user-side rollout is mostly already done."},{"url":"https://www.ringcentral.com","title":"RingCentral","bodyMarkdown":"RingCentral fits hybrid enterprises that want a managed cloud tenant plus BYO carrier through SBC integration. Ten years as a Gartner Magic Quadrant Leader signals the operational maturity needed for global multi-site hybrid rollouts."}]},"configJson":{"colSize":3,"columns":3},"noteMarkdown":null,"noteHtml":null,"sortOrder":3}],"citations":[{"title":"What is a hybrid cloud deployment? Models & best practices","url":"https://northflank.com/blog/what-is-hybrid-cloud-deployment","excerpt":null,"quoteText":null,"sourceRole":"PRIMARY","verifiedAt":null,"supportsText":null,"domain":"northflank.com","publisherName":"Northflank"},{"title":"Cloud Computing Deployment Models","url":"https://www.ituonline.com/blogs/cloud-computing-deployment-models","excerpt":null,"quoteText":null,"sourceRole":"PRIMARY","verifiedAt":null,"supportsText":null,"domain":"ituonline.com","publisherName":"ITU Online"},{"title":"A guide to hybrid cloud deployment models","url":"https://newrelic.com/blog/infrastructure-monitoring/hybrid-cloud-deployment-models-examples","excerpt":null,"quoteText":null,"sourceRole":"PRIMARY","verifiedAt":null,"supportsText":null,"domain":"newrelic.com","publisherName":"New Relic"},{"title":null,"url":"https://flexicloud.co/blogs/cloud-deployment-models","excerpt":null,"quoteText":null,"sourceRole":"SUPPORTING","verifiedAt":null,"supportsText":null,"domain":"flexicloud.co","publisherName":"FlexiCloud"}],"revisions":[],"relatedAnswers":[{"id":"64d09e40-ee5e-4b6f-9c6b-bba0f06d327a","slug":"when-should-a-business-switch-from-voip-to-ucaas","question":"When should a business switch from VoIP to UCaaS?","publishedAt":"2026-06-15T14:29:19.683","confidenceScore":null,"confidenceLabel":null,"industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"ucaas","label":"UCaaS","description":null,"schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"Switch from VoIP to UCaaS when tool sprawl, remote work, CRM needs, AI features, or a renewal window justify the higher per-user platform cost.","url":"/q/when-should-a-business-switch-from-voip-to-ucaas"},{"id":"cb85d725-4f05-4be8-8196-3a2f82d657e4","slug":"what-ucaas-bandwidth-requirements-should-businesses-plan-for","question":"What UCaaS bandwidth requirements should businesses plan for?","publishedAt":"2026-06-15T14:29:19.417","confidenceScore":null,"confidenceLabel":null,"industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"ucaas","label":"UCaaS","description":null,"schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"Businesses should budget roughly 100-150 Kbps per concurrent voice call, 2-3 Mbps per HD video participant, low latency and jitter, and peak-hour headroom.","url":"/q/what-ucaas-bandwidth-requirements-should-businesses-plan-for"},{"id":"32c1f9e9-ba62-407a-9fcb-7b9780f43ed7","slug":"what-ucaas-features-matter-most-for-remote-teams","question":"What UCaaS features matter most for remote teams?","publishedAt":"2026-06-15T14:29:19.151","confidenceScore":null,"confidenceLabel":null,"industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"ucaas","label":"UCaaS","description":null,"schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"Remote teams need one UCaaS app for voice, video, chat, screen sharing, presence, SSO, and AI meeting support, backed by network controls for call 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and PSTN trunks through the public cloud [1][2]. About 88% of organizations now run hybrid IT, making this the default pattern for regulated or multi-site deployments [3]. Segment fit matrix Feature Regulated enterprise Multi-site global Cisco/Avaya brownfield Private SBC for SIP trunking ✅ Required 🟡 Recommended ✅ Required On-premises call recording vault ✅ Required 🟡 Recommended 🟡 Recommended Cloud meetings and messaging ✅ Required ✅ Required ✅ Required Local survivability gateway ✅ Required ✅ Required ✅ Required SD-WAN with QoS marking ✅ Required ✅ Required 🟡 Recommended Direct routing to Microsoft Teams 🟡 Recommended 🟡 Recommended — Skip Phased migration tooling ✅ Required ✅ Required ✅ Required Key terms Hybrid UCaaS Provider model Deployment combining a cloud UCaaS tenant with on-premises session border controllers or local survivability gateways. Session border controller Technical dependency On-premises appliance that secures SIP signaling and provides PSTN failover for cloud voice. Local survivability Technical dependency Edge device that keeps internal calls running when the WAN link to the cloud UCaaS provider fails. Data residency Compliance requirement Regulatory rule requiring call recordings or PII to remain stored in a specific country or region. Cloud bursting Outcome metric Pattern where steady-state load runs on private infrastructure and spikes overflow to public cloud. Related questions How does UCaaS compare to on-premises PBX? /search?q=How+does+UCaaS+compare+to+on-premises+PBX%3F How do you migrate from on-premises PBX to UCaaS? /search?q=How+do+you+migrate+from+on-premises+PBX+to+UCaaS%3F How does UCaaS compare to Microsoft Teams for enterprise voice? /search?q=How+does+UCaaS+compare+to+Microsoft+Teams+for+enterprise+voice%3F Providers to consider Cisco Webex Calling https://www.cisco.com/site/us/en/products/collaboration/webex-calling/index.html Webex Calling is built for hybrid voice with explicit on-premises survivability and dedicated instance options. With 12+ million cloud calling users worldwide, it is the obvious fit when there is an existing Cisco UCM or CUBE footprint to preserve. Microsoft Teams Phone https://www.microsoft.com/en-us/microsoft-teams/microsoft-teams-phone Teams Phone supports Direct Routing through customer-owned SBCs, so enterprises can keep carrier contracts and PSTN breakout on-premises while running the call control in M365. With 320 million Teams MAU, the user-side rollout is mostly already done. RingCentral https://www.ringcentral.com RingCentral fits hybrid enterprises that want a managed cloud tenant plus BYO carrier through SBC integration. Ten years as a Gartner Magic Quadrant Leader signals the operational maturity needed for global multi-site hybrid rollouts.","url":"https://www.answerstack.io/q/what-ucaas-deployment-model-suits-enterprises-with-hybrid-infrastructure","upvoteCount":0,"datePublished":"2026-06-15T14:29:18.879","dateModified":"2026-06-15T14:29:18.879","author":{"@type":"Organization","name":"AnswerStack","url":"https://www.answerstack.io/contributors/answer-stack"},"citation":[{"@type":"CreativeWork","name":"What is a hybrid cloud deployment? 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