Voice · SIP Trunking
Carrier-grade SIP trunking for your PBX, UCaaS, or contact center
Connect any SIP-compatible platform to the public phone network with redundant U.S. points of presence, elastic channel capacity, and transparent per-minute pricing.
What you get with SIP Trunking
Elastic capacity
Scale concurrent channels up or down without hardware changes or long-term commitments.
Redundant routing
Geo-redundant signaling and media with automatic failover between points of presence.
Broad compatibility
Works with Asterisk, FreePBX, 3CX, FreeSWITCH, Cisco, Avaya, and most SBCs.
Secure by default
TLS signaling, SRTP media, IP allow-lists, and digest authentication per trunk.
STIR/SHAKEN
Outbound calls are signed with appropriate attestation to protect answer rates.
Real-time visibility
Call detail records, quality metrics, and usage visible in the customer portal.
Common use cases
- On-premise and hosted PBX
- UCaaS platforms
- Contact centers
- Healthcare and multi-location businesses
Technical specifications
- Codecs
- G.711 µ-law/A-law, G.729, Opus
- Transport
- UDP, TCP, TLS
- Media
- RTP, SRTP
- Authentication
- IP allow-list or credentials
- Fax
- T.38 supported
Questions
How fast can a trunk be provisioned?
Once your account is approved, trunks are typically configured within one business day.
Is there a minimum commitment?
Standard plans are month-to-month. Volume commitments are available for discounted rates.
Get started with SIP Trunking
Every account is reviewed by our team before activation. Tell us about your business and use case and we will follow up.