Not All PRIs Connect to Telcos…

Just another day at the office...

Occasionally in voice world you end up configuring PRI connections to devices other than telco gateways. Sometimes these are PRIs between PBXs, fax servers, or other third-party vendor voice gateways for applications. These are typically connections internal to the organization versus a PRI to the outside world. Many times these require you to think just a little bit differently than your standard PRI turn-ups to get to that fabulous MULTIPLE_FRAME_ESTABLISHED goodness.

I’ll offer you a few things to look out for should you find yourself in this type of situation.  Keep in mind that no voice installation is ever *standard* so your mileage may vary.

1. T1 crossover cable. It’s a thing.  Often times the vendor bringing in their voice gateway will tell you things like “it’s just an RJ45 hand-off” or “just provide us a straight-through cable” but don’t believe the lies. More often than not in cases where you are…

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