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1.  Comparing Reliability: ISDN vs Internet    4/5/12 by Dave Immer

Hi there,

I often get asked the differences between ISDN and internet audio networking, to which I always respond: reliability.

ISDN is a dedicated circuit that you “dial up” resulting in a secure and private connection for your use only. It has a fixed, guaranteed bit-rate that is the same everywhere in the world.

Compare this to internet (IP) networking, which is subject to packet collisions, jitter and other challenges of sharing the “information highway” with the rest of the world.

No, ISDN is not immune to bit-errors, but when performing to specification, one can reasonably expect better reliability from ISDN than the pubic internet.

Let me know if you have any comments or questions about reliability. Thanks,

-Dave