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Dialogic® BorderNet™ 2020 Integrated Media Gateway

See also:
Dialogic® IMG Integrated Media Gateway


Installation
Find the Serial Number

Configuration
Outbound ISDN calls fail due to NAI value
Point Codes and Dialogic Signaling Products
Using Differentiated Service (DiffServ or DSCP) rather than TOS
How to create a dummy Calling Party Number
Alternate odd/even hunting option in a channel group.
International SIP to SS7 NOA conversion
Using wildcard translations
Country specific ringback tones
How to assign different TDM profiles to different E1/T1 spans
How to change VoIP (SIP and/or RTP) IP addresses on the IMG2020
How to add additional VoIP resources after a license upgrade
How to Change T7 Timer in the SS7 ISDN User Part

Operation
Release Reason / Cause Code Translation
How to reset a telnet session
What does an SS7 CIC status of transient mean?
IMG resets unexpectedly when configured as a peer for SS7 redundancy
How to exit from an SSH session
How to backup IMG 2020 and EMS server
Ethernet Redundancy on the IMG 1010 and IMG 2020

Error Messages
'DisplayIE truncated, too long' message
GCL Rejects Incoming Calls With Cause Value 42 (Switching Equipment Congestion)
Maintenance Busy / T309 Expired
ERROR: SDP m line (audio) decoding failed
'SIP Err: decoding failed' in call trace
Troubleshooting Gateway Alarm - Gateway Status: Reachable but UnAvailable
Calls rejected due to "No Match" in translation tables

Troubleshooting
SS7 MTP2/MTP3 Troubleshooting
ISUP PROT VIOL Output in the CLI Terminal
How to capture and dump a task that is interrupting the CPU
How to prevent SIP calls that are on hold from releasing after five minutes
IMG cooling fan testing
No SS7 signaling in call trace on remote IMG
IMG unexpectedly releases H.323 call
Fax completes at speed of 9600, but T.38 indicates speed of 14,400
RFC2833 digits not propagated in a SIP <-> TDM call
How to troubleshoot IMG number translation issues

Diagnostics
Sending SNMP Traps from a Dialogic IMG Integrated Media Gateway
How to analyze an SS7 ISUP Trace
Example call trace with notes
How to view ISDN & SS7 traces using Wireshark
IMGtools application
IMG call trace viewer
How to enable port mirroring / snooping