voice over ip, voip providers,

When Mobile in Roaming ,and It Makes a Call to PSTN in the Country Where Is in Roaming,Is There Any ISUP Messe

January 25, 2012

messages exchanged between the two PLM home and visiting,in particular the IAM from where is it sent?,or all the messages are between the MSC and PSTN,or there is just the CAP messages with SCP?
note that i'm in case we are using Camel service.
thank you.
SCP(service control point)je parle pas de SCCP protocle.
if the IAM is sent from the MSC where the mobile is located,why ,i can see the international carrier for the home PLMN in the traces(ISUP traces) taken in home PLMN?

1 comment… read it below or add one

Corky April 30, 2009 at 12:05 am

I don't have this problem - my phone is not allowed to roam - I keep it in my pocket!

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