Flowroute

Spec sheet

What it does

Flowroute is a self-service, cloud-based SIP trunking and business-messaging CPaaS provider offering a-la-carte telephony components through APIs and a management portal.Read 15 Oct 2026 · flowroute.com

Product

Flowroute provides cloud-based SIP trunking, voice and messaging APIs, phone numbers, faxing, and call forwarding.Read 30 Sep 2026 · flowroute.com

Intended users

Flowroute describes its platform as suited to businesses, developers and CPaaS providers, and dealers and partners; its call-center page also targets contact centers.Read 30 Sep 2026 · flowroute.com

Integrations

The FAQ lists integrations with 3CX, Asterisk and FreeSWITCH, and describes the APIs as software-agnostic.Read 15 Oct 2026 · flowroute.com

Support

Flowroute offers free, non-tiered support, with phone support 13 hours a day Monday through Friday and email ticket responses every day.Read 30 Sep 2026 · flowroute.com

Headquarters

Seattle, Washington, United StatesRead 28 Sep 2026 · flowroute.com

Founded

2007Read 28 Sep 2026 · flowroute.com

API authentication

The Messaging API uses HTTP Basic Authentication with an access key as username and secret key as password.Read 15 Oct 2026 · developer.flowroute.com

Calling

The service connects existing PBX systems or telephone adapters for inbound and outbound calls.Read 30 Sep 2026 · flowroute.com

Company profile

LinkedIn lists Flowroute as a privately held BCM One company with 501–1,000 employees, New York headquarters and a 2007 founding year.Read 15 Oct 2026 · linkedin.com

Developer documentation

Documentation includes API references, articles, quickstarts, Docker repositories and use-case guides for masking, two-factor authentication and appointment reminders.Read 15 Oct 2026 · developer.flowroute.com

Faxing

Flowroute offers T.38 fax routes for sending and receiving faxes remotely.Read 15 Oct 2026 · flowroute.com

Fraud protection

Account controls include IP-based outbound authentication, maximum outbound rate limits, and destination blacklists and whitelists.Read 30 Sep 2026 · flowroute.com

Free account

Flowroute says users can create a free Manage portal account for service ordering, number porting, and service management.Read 30 Sep 2026 · flowroute.com

HyperNetwork

Its patented HyperNetwork dynamically changes inbound DID routing to alternate carriers to provide failover and redundancy.Read 15 Oct 2026 · flowroute.com

Licence

The hosted Flowroute service is proprietary under terms granting a limited, non-transferable use licence, although its SDK libraries are open source.Read 15 Oct 2026 · flowroute.com

Limit: messaging registration

A G2 reviewer reported a 23-day delay in 10DLC registration that disabled business texting.Read 15 Oct 2026 · g2.com

Limit: porting and outages

Reviewers report call drops, network incidents and porting delays, including a migration that took more than three weeks.Read 15 Oct 2026 · g2.com

Limit: support quality

Multiple G2 and Capterra reviewers report slower or less effective support after ownership changes and during troubleshooting.Read 15 Oct 2026 · g2.com

Limit: Trustpilot complaints

Trustpilot reviewers report wrong call routing, spam labeling, duplicate card charges, unexplained cancellations and unanswered tickets.Read 15 Oct 2026 · trustpilot.com

Messaging

Its APIs support SMS and MMS, including customizable routing through webhooks and message detail records.Read 30 Sep 2026 · flowroute.com

MMS

MMS sends and receives image, video and audio content to North American text-enabled numbers.Read 15 Oct 2026 · flowroute.com

Number management

The Numbers API can search for and purchase US and Canadian numbers, manage inbound routes, and automate E911 and CNAM setup.Read 30 Sep 2026 · flowroute.com

Ownership change

BCM One announced acquisition of Flowroute assets from Intrado on March 9, 2022, with terms undisclosed.Read 15 Oct 2026 · flowroute.com

Phone numbers

Customers can buy or port local, toll-free and vanity numbers in the United States and Canada with caller ID, E911 and CNAM options.Read 15 Oct 2026 · flowroute.com

Praise: pricing and setup

G2 reviewers repeatedly praise competitive pricing, an easy portal, straightforward setup and simple PBX connections.Read 15 Oct 2026 · g2.com

Praise: reliability

Reviewers describe clear call quality, strong uptime and reliable DID routing when the service is operating normally.Read 15 Oct 2026 · g2.com

Pricing limits

The pricing page says additional fees and surcharges apply to SMS and MMS, and outbound call rates vary by country.Read 30 Sep 2026 · flowroute.com

Python requirements

The documented Python SDK requires API credentials and Python 2.7 or Python 3.4 or newer.Read 15 Oct 2026 · developer.flowroute.com

Rating on Capterra

4.0 out of 5 from 8 reviewsRead 15 Oct 2026 · capterra.com

Rating on G2

3.8 out of 5 from 15 reviewsRead 15 Oct 2026 · g2.com

Rating on GetApp

4.0 out of 5 from 8 reviewsRead 15 Oct 2026 · getapp.com

Rating on GetVoIP

3.7 out of 5 from 33 reviewsRead 15 Oct 2026 · getvoip.com

Rating on Trustpilot

2.5 out of 5 from 5 reviewsRead 15 Oct 2026 · trustpilot.com

Rating on TrustRadius

6.2 out of 10 from 3 reviewsRead 15 Oct 2026 · trustradius.com

Recent incident

The status history records an October 2026 billing-statement availability incident that was resolved on October 4, 2026.Read 15 Oct 2026 · status.flowroute.com

Remote forwarding

Users can forward Flowroute numbers to other numbers on demand through the portal.Read 15 Oct 2026 · flowroute.com

Resiliency

Its patented HyperNetwork dynamically routes inbound DID numbers to support business continuity.Read 30 Sep 2026 · flowroute.com

REST API

Flowroute APIs use resource-oriented URLs, HTTP verbs, status codes and JSON responses for numbers, routes, messaging, CDRs and porting.Read 15 Oct 2026 · developer.flowroute.com

SDKs

Open-source GitHub libraries are provided for Python, Ruby, PHP, Node.js and .NET, with a recommended v3 supporting Numbers v2 and Messages v2.1.Read 15 Oct 2026 · developer.flowroute.com

Security controls

Official materials describe IP-based authentication, outbound-rate limits, destination whitelists and anomaly monitoring to reduce toll fraud.Read 15 Oct 2026 · flowroute.com

SMS

SMS supports appointment reminders, proxy-number messaging, surveys and two-factor authentication through APIs or the portal.Read 15 Oct 2026 · flowroute.com

Support resources

Flowroute provides a knowledge base, help center, status page, API documentation and phone/email support resources.Read 15 Oct 2026 · flowroute.com

Voice SIP

The service connects existing PBX systems or analog and digital telephone adapters for inbound and outbound calling.Read 15 Oct 2026 · flowroute.com

Plans and prices

Every Flowroute plan and price →

Where Specifiction places it

• SIP Trunking Providers#3 of 278.9