Common Causes of BRI/PRI Line Connection Failure

Symptom

BRI/PIR line is not up, and might have different alarms.

First please refer to the guide to ensure you have done all things: E1 Basic Installation Guide

or for BRI: BRI Basic Installation Guide

Common Causes

Firstly you would need to know how to get the BRI/PRI packets.

U-Series/Gateway: BRI/PRI debug for U-Series
S-Series: BRI/PRI debug for S-Series

1. Incorrect E1/BRI Cable

The pinout is incorrect. Usually the provider would the standard pinout. If not, please check the the pinout the provider used.

2. Incorrect Signaling Role Setting

Please the articles:

BRI/PRI CPE Error

BRI Line PTMP Error

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