(800) 440-9440

Search form

T1 Internet Service

Scalable, reliable bandwidth

What is T1 Internet Service?

The T1, or T-carrier, is a commonly used digital transmission system. With a Call One Full T1 or Bonded T1 line, you easily increase bandwidth as your business’s voice and data needs expand.

Call One


Set up your T1 Line »


Our T1 voice and data connection speeds range from 1.5 Mbps up to 12 Mbps. Our T1 services may be used for traditional PRI (Primary Rate Interface) configurations or combined with Call One’s Hosted Voice and SIP (Session Initiation Protocol) Trunking services. The SLA for all T-1 connections guarantees 99.99% availability.

T1 Line Options:

  • Full T1: 1.5 Mbps
  • Bonded T1: Speeds of 3, 4.5, 6, 7.5, 9, 10.5, and 12 Mbps

T1 Benefits:

  • Full duplex transmission of data
  • Priority data routing
  • 100% throughput and 99.99% uptime SLA — guaranteed

How We Can Help

Bandwidth and Uptime

Call One evaluates the T1 Internet providers and selects the best one for your business and industry. We work with your T1 provider to ensure that your new line is operating optimally and continue to monitor your network for problems — so you can focus on your business.

Set up your T1 Line