Netrio SIP Trunking provides wholesale carrier and large business customers with premium Local and Long Distance termination services using a premier tier 1 routes with guaranteed call completion utilizing our non-blocking routing.

  • Premium Quality with tier 1 redundant routing (AT&T, Level 3 and Verizon)
  • 100% route selection with our U.S. Non-Blocking LCR
  • International Termination with low fraud support
  • Flexible pricing – Flat Rate or by Rate Deck
  • Custom LCR – to maximize cost efficiency, vendor selection & manage existing commitments


  • Unlimited Call Paths
  • Premier Routing for Enterprise & Call Center Short Duration
  • Managed QoS – Private Peering & Public Peering


  • Dallas based NOC with continuous surveillance & support 365 x 7 x 24
  • Redundant class 4 carrier switch interconnected via SS7 & SIP
  • Direct TDM & SS7 connectivity with AT&T / Verizon

NETRIO is a premier VoIP Service Provider. Specializing in delivering quality Voice over IP services to Business, Call Centers & Carriers using SIP Trunking and traditional PRI / SS7 circuits.