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VoIP call from overseas and caller ID

Posted on 2006-11-30
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Last Modified: 2010-04-12
When my friend call me on my mobile from overseas , some times I can see his number on my mobile screen (which is save) , some times I can not see the number , I just see call on the screen of the mobile.

he is using VoIP call from his work

Why this happens ?

Regards
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Question by:zillah
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kode99 earned 1000 total points
ID: 18049229
Hard to say exactly.  It could be that his system uses different call routing at different times for least cost and that the caller ID information is not getting though in all cases.  It could just be that the callerID is not setup properly on all voice paths and he is not always using the same one.

For example at my work most lines are set to show our main number caller ID but some lines are simply blocked out and show nothing.

I find caller ID is not 100% in the first place either.  It may be less reliable for international calls,  I do not deal with overseas calling much so I am not sure if that is a factor or not.


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