O1 sells SIP Peering only as a wholesale service. O1 responds to the very specific needs of service providers and CLECS by working with them to design solutions based on their unique requirements. O1 helps VoIP providers establish cost-effective peering arrangements. Peering with O1 gives you the flexibility you need to route SIP sessions to a single provider for national termination.

• National termination with flexible rate decks
• National origination with local DIDs
• International termination
• Any-to-any peering
• Local number portability
• 911/E911 emergency services

• Great California rates
• Covering over 90% US population
• No minimum commitments
• No interconnection charges public or private
• 24-hour turn-up
• 24 x 7 technical support

• G.711 (must be supported)
• G.729
• T.38
• In- or Out-of-Band DTMF (RFC 2833 or SIP INFO)
• Private or Public SIP options
• Supports all payload sizes