T1/DS1 broadband in New Hampshire uses two pairs of copper wire for transmission over telephone lines. An ordinary telephone line uses the DS0 transmission protocol, which carries 64 Kbit per second. A T1 line uses the DS1 protocol to combine the equivalent of 24 telephone lines for a total bandwidth of 1.536 Mbit per second.

A NH T1 provider usually offers T1 lines to private customers in DS0 fractions. However, a small business will typically use a full T1 line to connect to the Internet and a larger business may use multiple T1 lines bundled together.

There are three primary factors to consider when you compare New Hampshire T1 providers:

1. Prices for T1 in New Hampshire vary in part according to your distance from the carrier’s Point of Presence. The further you are from the carrier’s POP, the more your T1/DS1 line will cost.

2. Major carriers usually own and operate their own networks, generally resulting in the best actual transmission speeds.

3. A channel bank is necessary to separate the DS1 data stream back into the 24 DS0 data packets. This device is relatively expensive to purchase or lease and represents a substantial investment for a small business.

Action Steps
The best contacts and resources to help you get it done

Locate New Hampshire broadband providers that sell full T1 service

Use a dedicated T1 line in New Hampshire to provide your employees access to high-speed broadband. New Hampshire providers frequently include multiple static IP addresses and email addresses under your domain name.

I recommend: Comcast offers businesses connection speeds much faster than DSL with downloads up to 16 Mbps and uploads up to 2 Mbps. Intercom provides businesses across the country with full and bonded lines.

Find providers of dedicated Internet in NH that specialize in business packages

Get T1 access in New Hampshire from a provider that can meet your needs now and scale your requirements as your business grows.

I recommend: EarthLink offers a symmetrical T1 business line so you can upload as fast as you download and guarantees 99.99 percent uptime. AT&T offers single and bundled T1 service to its OC-48 and OC-192 backbone and uptime of 99.95 percent.

Check out local packages for dedicated T1 service in NH

A local provider T1/DS1 broadband in New Hampshire connects your business to the carrier's POP. This connection is known as the local loop and represents a substantial component of a T1 line's cost.

I recommend: G4 Communications is in Manchester and provides business class Internet connectivity using a variety of technologies, including T1 lines. Turnpike Technologies offers high-speed dedicated connections to businesses in New Hampshire and Vermont.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  DSL service with the same maximum speed is almost always substantially slower than the connection of a T1 carrier. New Hampshire T1/DS1 providers rarely oversubscribe their services, meaning that these customers will have access to the full transmission rate of 1.544 Mbps. By contrast, the oversubscription rates for DSL lines routinely exceed 4:1.