Flowroute
Flowroute: A metered SIP platform for PBX connectivity, messaging, routing, and number management. Ranked #11 of 28 in SIP Trunking Providers by our editors (8.4/10); pricing: Paid; best for PBX users needing messaging and redundancy.
At a glance
- Editor score8.4 / 10
- PricingPaid
- Best forPBX users needing messaging and redundancy
- Free planNo
- Emergency callingYes
- Founded2007 · Seattle, Washington, United States
- Facts checked19 Sep 2026
Where it wins
- Metered inbound and outbound SIP for PBX systems and SIP endpoints
- Fail-safe routing, DID redundancy, and adaptive voice routing
- SMS, MMS, E911, APIs, and web-based service management
Where it doesn't
- Metered usage may be less predictable than fixed monthly plans
- Advanced configuration is oriented toward technical communications teams
- Its broad communications scope may exceed basic voice-only requirements
Our verdict on Flowroute
Flowroute is a cloud-based SIP trunking and communications platform for businesses, developers, contact centers, communications service providers, and hosted VoIP providers. It connects PBX systems and SIP-compliant endpoints to metered inbound and outbound calling, while also supporting phone number purchasing, local and toll-free numbers, and number porting. SMS and MMS are available through the API or online portal, with E911 association and emergency calling for supported use cases.
The platform’s strongest fit is for organizations that need more than basic SIP connectivity. Flowroute Manage Portal and APIs support service management, while call routing includes fail-safe alternate routing. HyperNetwork DID redundancy and adaptive routing add options for voice applications that need continuity across routing paths. TLS-encrypted SIP signaling protects signaling between customer systems and Flowroute, and fraud management and call analytics provide operational controls for teams managing business communications.
Flowroute uses a metered pricing model rather than presenting a single fixed monthly SIP plan. That structure can suit businesses that want usage-based voice costs and access to numbers, messaging, routing, and emergency services within one communications platform. It may be less suitable for buyers who prioritize a simple flat-rate voice package or a narrowly focused phone service. Choose Flowroute when PBX connectivity, messaging APIs, number management, and redundancy are central requirements; consider an alternative when the priority is predictable bundled pricing or a minimal setup for basic calling only.
Your product? Our editors can test Flowroute in depth and publish a review, labelled as paid · from $149/mo →
Flowroute pricing
Flowroute fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Pricing model | Hybrid |
| Concurrent channels | Not verified |
| Number porting | Yes |
| Emergency calling | Yes |
| Toll-free numbers | Yes |
| Encrypted signaling | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Integrations | 4 integrations: SIP-compliant endpoints and systems, PBX systems, Flowroute API, Flowroute Manage Portal |
| Pricing | Paid (source) |
| Website | flowroute.com |
| Facts checked | 19 Sep 2026 |
Flowroute integrations
Flowroute lists 4 integrations on its own site.
- SIP-compliant endpoints and systems
- PBX systems
- Flowroute API
- Flowroute Manage Portal
Alternatives to Flowroute
- IPComms SIP TrunkingA low-cost SIP trunk with encryption, E911, failover, and broad PBX integrations.9.4
- Telnyx SIP TrunkingLow-usage SIP trunking with API setup, calling features, and pay-as-you-go pricing.9.3
- BulkVS SIP TrunkingA low-cost SIP option for North American numbers, PBXs, and carrier workflows.9.2
See all Flowroute alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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