Flowroute vs SIP.US Cloud SIP Trunking
Flowroute
flowroute.comSIP.US Cloud SIP Trunking
sip.usSide by side
| Figure | Flowroute | SIP.US Cloud SIP Trunking |
|---|---|---|
| Price from | $0.01/mo | $1/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 11 | 10 |
| Spec score · SIP Trunking Providers | 8.9 (#3) | 7.9 (#6) |
| Fraud protection | Account controls include IP-based outbound authentication, maximum outbound rate limits, and destination blacklists and whitelists. | Real-time international toll fraud protection can terminate unauthorized calls, disable international calling and alert the customer and Network Operations Center. |
| Integrations | The FAQ lists integrations with 3CX, Asterisk and FreeSWITCH, and describes the APIs as software-agnostic. | Supported SIP-enabled PBX systems include 3CX, Asterisk, Elastix, Cisco, Avaya and Grandstream, plus open-source telephony applications. |
| Product | Flowroute provides cloud-based SIP trunking, voice and messaging APIs, phone numbers, faxing, and call forwarding. | SIP.US provides cloud SIP trunking that connects an existing PBX to reliable SIP trunking with flexible channels and no contracts. |
| Support | Flowroute offers free, non-tiered support, with phone support 13 hours a day Monday through Friday and email ticket responses every day. | Customers can use the knowledge base or call support at 800-566-9810. |
Plans
Flowroute
- CNAM lookupFree
- Long-code SMSFree
- Domestic inbound calling$0.01 a month
- Long-code MMS$0.01 a month
- Toll-free calling$0.01 a month
- Toll-free SMS$0.01 a month
- US/Canada outbound calling$0.01 a month
- Toll-free MMS$0.02 a month
- DID number$1 a month
- E911 associationPrice not published
SIP.US Cloud SIP Trunking
- US48 Local DID$1 a month
- Nomadic e911 Enhanced DID$2.50 a month
- Toll-free DID$2.95 a month
- Business texting — 200 Messages$9.95 a month
- Business texting — 500 messages$19.95 a month
- SIP channels — Yearly Plans$19.99 a year
- SimpleFAX™ Service$24.95 a month
- SIP channels — Month to Month$24.95 a month
- Business texting — 1,000 messages$29.95 a month
- Business texting — 3,000 messages$79.95 a month
In their own words
SIP.US Cloud SIP Trunking
SIP.US Cloud SIP Trunking connects an existing PBX to cloud SIP service through flexible channels, with no contracts. Its self-service control panel manages trunks, telephone numbers, provisioning, billing, and call records. Each channel includes unlimited outbound calling to the US48 states and Canada, plus unlimited inbound calling to local numbers; each concurrent incoming or outgoing call requires a channel. Call records are viewable near real time, cover today and the past year, and can be downloaded as CSV files. A searchable directory covers US and Canadian numbers, and most DIDs are provisioned instantly. Customers choose their broadband provider; G.711 calls use approximately 85kbps up/down, and G.729 is supported. Fraud controls can terminate unauthorized international calls, disable international calling, and send alerts. Inbound DID calls can route to primary and secondary IP-PBX systems or a backup PSTN number if routing fails. Supported systems include 3CX, Asterisk, Cisco, Avaya, and Grandstream, and the service can connect SIP trunks with Microsoft Teams. Availability is limited to businesses based in the United States and Canada.