User Manual
U-SYS IAD108 Integrated Access Device
Table of Contents
vi
Chapter 8 Troubleshooting...........................................................8-1
8.1
Common Fault-locating Means ..........................................8-1
8.1.1 Showing Important System Information ..................8-1
8.1.2 Showing Alarms.......................................................8-5
8.1.3 Capturing Network Packets.....................................8-7
8.1.4 Tracing Signaling.....................................................8-7
8.2
IAD Port ID Error Leads to Call Failure..............................8-8
8.2.1 Symptom Description ..............................................8-8
8.2.2 Causal Analysis .......................................................8-8
8.2.3 Processing Procedure .............................................8-9
8.2.4 Suggestion and Summary .....................................8-10
8.3
Echo Occurs in PSTN Calls. ............................................8-11
8.3.1 Fault.......................................................................8-11
8.3.2 Cause ....................................................................8-11
8.3.3 Processing Procedure ...........................................8-12
8.4
Call Fails After Telephone Ringing ..................................8-12
8.4.1 Fault.......................................................................8-12
8.4.2 Cause ....................................................................8-12
8.4.3 Processing Procedure ...........................................8-13
8.5
Monolog ...........................................................................8-14
8.5.1 Fault.......................................................................8-14
8.5.2 Cause ....................................................................8-14
8.5.3 Processing Procedure ...........................................8-14
8.6
Voice Quality Deterioration ..............................................8-15
8.6.1 Fault.......................................................................8-15
8.6.2 Cause ....................................................................8-15
8.6.3 Processing Procedure ...........................................8-16
8.6.4 Suggestion and Summary .....................................8-16
8.7
IAD Echo ..........................................................................8-16