I have a T1 terminated on an Adtran Netvanta 3200. This circuit is flapping regularly - I count 20+ loss of frame events in the last hour. The ISP tells me that the LEC/telco is testing clean up to ...

The author is chief engineer of Minnesota Public Radio. Legacy T1 circuits have long provided radio broadcasters with a reliable way to contribute and distribute program audio. The telecom industry’s ...

Back in the old days, the only realistic way to connect multiple remote sites was by T1 or T3 delivered either point-to-point or via Frame Relay. These were either slow and expensive or fast and ...

First, congratulations for reading this far. With all of the “I’m IP, are you?” and recent introductions of radio-based studio-to-transmitter links, you’d think venerable T1-based STLs have gone the ...

You have several servers, mail, citrix, etc. They use public IPs from the IP block from your ISP. They are behind an ASA 5500 on a T1 circuit. You want to backup the T1 connection with a cable ...