Are SIP trunks as reliable as an ISDN PRI T1? I’m asked this question a lot, so I thought it’d be a great blog topic. I don’t think you are as concerned with this as the amber lights in the server ...

My company owns several videoconference units that connect to a ISDN PRI T1. Several users reported problems with making and receiving video calls. The person who put this in has since left the ...

GL Communications announced the release of Version 5.18 of its T1 E1 analyzer software. The product suite, which provides analysis and emulation capabilities for voiceband and signaling protocol ...

Ok, before anyone says "get DSL" or "get cable" or even "get a T1" I'm going to say this: DSL won't be here for at least a year, cable isn't comeing, and T1's are too expensive ($741/mo includeing ...

Dynamic Instruments offers a wide variety of recording solutions from 4 to 192 channels. Users can combine analog and digital passive taps including: T1, E1, ISDN PRI, ISDN BRI and 50 proprietary ...

(click thumbnail)When shopping for audio transmission equipment, the choices and selections can be pleasing and daunting all at once. We at NPR had such a selection to make recently. We needed ...

As a global standard for digital data transmission over traditional telecommunications networks, ISDN runs on ordinary copper wires but offers faster data transfers and improved results than analog ...