Bandwidth and PSTN Trunking
Our wholesale services portfolio includes origination, intrastate and interstate termination, short duration, toll-free call termination, toll-free origination, turnkey VoIP services and managed modems. O1 Communications offers a range of options at competitive rates.
- Solutions for wholesale service providers, carriers, and other competitive local exchange carriers (CLECs).
- Wholesale VoIP with a range of connectivity options.
- Industry-leading support, competitive rates, and 24-hour turn-up.


Carrier-Grade Network Reliability
The O1 network was built with best of breed Lucent, Acme Packet and Cisco soft switches, session border controllers, and network equipment to deliver carrier grade reliability, flexibility, and scalablity. We support our service with highly trained SIP engineers and an experienced customer support team. Our network architecture is designed specifically to support third-party connectivity.
Custom Solutions, Responsive Support
O1 responds to the very specific needs of service providers and CLECs by working closely with them to design solutions to meet their unique requirements. O1 helps VoIP providers create cost-effective peering arrangements with the flexibility to route SIP sessions to a single provider for national termination. O1’s preferential peering arrangements include flexible on-net/off-net rate decks, on-net origination with local DIDs, any-to-any peering, and local number portability. O1 has been providing wholesale services for over 18 years.
