VoIP
SignalWire
API-first voice platform from the FreeSWITCH lineage, used for programmable trunking and low-latency media alongside conventional SIP endpoints.

Capabilities
What we implement
- SIP endpoint and trunk setup
- Programmable voice handling
- Number management
- Relay integration
Security
How it is hardened
- Per-endpoint credentials
- TLS/SRTP
- Rate and destination controls
Architecture
SignalWire trunking and programmable voice
FreeSWITCH-derived platform combining conventional SIP endpoints with programmable handling for calls that need application logic.
01 · SignalWire cloud
SIP endpointsNumbersRelay / scriptsApplication logic runs at the provider where it must survive PBX maintenance.
02 · Authentication
Per-endpoint credentialsIP restrictionTLS/SRTPSeparate credentials per endpoint so one leak is contained.
03 · PBX / app
Trunk to PBXProgrammable flowsRecordingClear split between calls handled by the PBX and calls handled in code.
04 · Controls
Rate limitsDestination policyUsage alertsCeilings set before campaigns or integrations go live.
FAQ
SignalWire questions we are asked
- When does programmable voice beat a PBX flow?
- When routing depends on external data — order status, account tier, agent skill from another system — or when the flow must be version-controlled and tested like code.
- Can it terminate to our existing Asterisk?
- Yes. The trunk registers or authenticates by IP exactly like any other carrier connection.
- Is it suitable for high concurrency?
- Yes, with capacity agreed in advance and rate limits configured — the same sizing discipline applies as with any carrier.
Related
Other voip platforms
SignalWire is referenced to describe engineering capability. All trademarks and product names are the property of their respective owners; no partnership or endorsement is implied.
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