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PRI Question

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dontworx

Technical User
Apr 9, 2003
237
US
We have a new customer that has MICS 4.1. They want to put in a PRI. It has been a couple of years since I put in a PRI into a nortstar. Isn't their issues with dropped calles on that software releas? What should I upgrade to if needed. Thank you!!!
 
I've posted this issue I've had a few times already, but it bears telling again.

MICS 5.0 running PRI clean for 3 years. Cut over to new service provider, and started dropping calls. CO tested clean with tberd on site, and verified config correct.

I upgraded to 6.1MR. Same issue. The KSU was accumulating RAI's, and resetting the card every 10 min., or so, dropping the calls.

As a last resort, I upgraded to 7.1, not expecting any change. Everything started running clean, and has been working fine ever since.

Old provider- 5E switch, New provider- Siemens switch.
 
Be sure to check the vintage on your NVRAM pack too. Older ones don't work correctly with PRI.

Phonehed in Dallas
 
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