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Load roaming IMSIS/data in MSC and troubleshoot when roaming fails

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friet
Load roaming IMSIS/data in MSC and troubleshoot when roaming fails

Hello to all in forum,

First time posting in this great forum.

I'm new to roaming implement and SS7 troubleshooting.

1- I would like to learn the steps to theorically load correctly the roaming data for calls and GPRS (define IMSIS, GT and other info needed in MSC/HLR) in order to get working roaming for foreign users in local MSC and national users in foreign networks.

2- And once the roaming data is defined in MSC/HLR etc, a troubleshooting guide when problems appear to look for common issues (i.e. imsi can’t register in visited network, can’t make calls etc) and how to solve them.
3 – A guide, website or document that shows example about SS7 Traces with roaming problems and that explains where the problem is located to fix it.

Maybe somebody knows links or documents or tips about these items, I’m a newbie in C7 and I would like to learn how to analyze C7/GPRS traces to fix normal call problems and international roaming call problems.

PS: If it matters, in AXE ericsson nodes.

I hope someone could help me. Many thanks in advance

Warm regards